129
06/16/89 10:01 •S l 807 623 2886 NOREX TB 02 JLIN 14 '89 15=25 LAMOMTftGNEtUDLGEOPftK085 P. 2/3 3.123^3 KARAS LAKE 010 Logistics and Interpretation Report on a UTEM Survey at Snake Falls, Ontario for Noranda Exploration limited February 1989 P. McGowan and C.Hyde Pa/Hck McGowan, M.Sc. (Geophysics) Christophe Hyde, B^,Sc. (Geol. Eng.)

Pa/Hck McGowan, M.Sc. (Geophysics) - Ontario · f] i; Nov lOcont'd..... 1400E 600N - 500S 1.1 km Hz Hx 1600E 600N - 500S 1.1 km Hz Hx 1800E 300N - 500S 0.8 km Hz Hx 2000E 600N - 475S

Embed Size (px)

Citation preview

06/16/89 10:01 •S l 807 623 2886 NOREX TB 02

JLIN 14 '89 15=25 LAMOMTftGNEtUDLGEOPftK085 P. 2/3

3.123^3 KARAS LAKE 010

Logistics and Interpretation Report on a UTEM Survey at

Snake Falls, Ontariofor

Noranda Exploration limited

February 1989 P. McGowan and C.Hyde

Pa/Hck McGowan, M.Sc. (Geophysics)

Christophe Hyde, B^,Sc. (Geol. Eng.)

INTRODUCTIONA UTEM 3 survey was carried out by Lamontagne Geophysics personnel in the area of

Snake Falls on behalf of Noranda Exploration Ltd during November of 1988. The Snake Falls property is located approximately 40 kilometers south of Red Lake.

FIELD WORKThe crew mobilized from Savant Lake to Ear Falls on November 6, and set up camp at Snake

Falls the following two days. The crew consisted of Brent Felix (geophysicist/operator) who was replaced by Christophe Hyde on November 12, Duryl Ball (operator), Behrouz Khamseh, Lawrence Rediron and Corey Guminey (field assistants). Patrick McGowan (Chief Geophysicist) was on site from November 10 to 17. Corey was replaced by Lyle Allen on November 20.

A total of 44.6 kilometers were surveyed from two grids, 20.9 kilometers from Dixie 19 with two loops, and 23.7 kilometers from Dixie 3 with four loops. Dixie 19 was surveyed November 7 to 16 with a total of 60 man days, Dixie 3 was surveyed November 17 to 26, also with 60 man days. Dixie 19 was accessed by truck and foot, and later on by snowmobile to remove the loops. Dixie 3 was accessed by snowmobile and foot. Weather presented few problems except for a snowstorm from November 16 to 17. Production was further slowed down by breaks in loops on Dixie 19.

TABLE i - PRODUCTION DIARY

date kms rate comments

Nov6 - M4 Mobilized to Ear Falls. Finished plotting data.Picked up Lawrence Rediron (LR)

7 - P4 Behrouz Khamseh (BK), LR and Chris Hyde (CH)started to set up camp and BF stayed in to make repairs to equipment and to shop for supplies.

8 - P5 The work continues the same as yesterday .Thatevening everyone moves into the camp including a new field assistant, Corey Gumieny (CG).

9 -2 Rx 4- l CH stays in camp to finish up work on the campwhile everyone else put in the loop and looked for breaks in the loop.

l O 4.075 2 Rx 4^ l Read lines from loop l with two receivers afterfixing two breaks in the loop while LR commenced laying out the second loop. Pat McGowan (PM) and Daryl Ball (DB) arrive in camp.

Snake Falls UTEM p. l

f]

i;

Nov lOcont'd..........1400E 600N - 500S 1.1 km Hz Hx 1600E 600N - 500S 1.1 km Hz Hx 1800E 300N - 500S 0.8 km Hz Hx 2000E 600N - 475S l. l km Hz Hx

Nov 11 6.9(x2) 2 Rx + 2 Read lines from loop l with two receivers while LRand 'JG finished laying out second loop. BF leaves camp.

1800B 300N-600N 0.3 km Hz Hx 1000E 600N - 500S 1.1 km Hz Hx 800E 600N - 500S l .1 km Hz Hx 600E 600N - 500S l.lkmHzHx 400E 600N - 500S 1.1 km Hz Hx 200E 600N - 500S 1.1 km Hz Hx OE 600N - 500S 1.1 km Hz Hx

12 1.1 (x2) l Rx -i- 2 Read Lines from loop l with two receivers. 2.2(xl) Coil l is down. Repair Rx l at night

LR goes to see grid 2.

1200E 600N - 500S 1.1 km Hz Hx1400E 600N-500S 1.1 km Hz1600E 600N - 500S 1.1 km Hz

13 2.2(x2) l Rx * 2 Read lines from loop 2 with l receiver. Loopbroken. D + Co on Rx 4. LR and BK pick up loop 1. PM repairing Rx l, CH plotted data.

2200E 600N - 500S l. l km Hz Hx 2400E 600N - 500S l. l km Hz Hx

14 2.2(x2) lRx + 3 Read lines from loop 2 with DB * BK on Rx 4.PM repairing coil l in Red Lake. Ch * Co L setting up loop 3.

3400E 600N - 500S 1.1 km Hz Hx 3600E 600N - 500S l. l km Hz Hx

15 4.4(x2) 2RX + 2 Read lines from loop 2. CO -i- LR setting uploop 3 and 4. All others on Rx/coil.

2600E 600N - 500S 1.1 km Hz Hx2800E 600N - 500S l. l km Hz Hx3000E 600N - 500S l. l km Hz Hx3200E 600N - 500S l. l km Hz Hx

16 P5 Snowstorm, l skidoo down and other usedby lan Perry. DB -t- CH pick up 3/4 of loop 2 LR -t- CG repair skidoo, provide transport PM attempted to leave camp, unsuccessful. CG tind CH start setting up Tx for loop 3.

Snake Falls UTEM p. 2

Nov 17 0.4(x2) l Rx -H 2 Read one line from loop 3. PM and LR shopping* groceries, PM leaves for T.D. DB and CH finish setting up Tx and loop 3. Rx l shuts off, DB and CG read on Rx 4 but coil was bad and line will need to bc redone, l new skidoo * 2 sleds.

600E 200S - 600S 0.4 km Hz Hx

18 3.4(x2) 2 Rx * l Read lines from loop 3. CH * CG read lines 22+20,DB+ BK read lines 6 * 1/2 8 (bad cable problems, but fix at night). CH replaces meter on Rx l. LR continues laying loop 4 after picking up rest of loop 2.

600E SOON - 600S 1.1 km Hz Hx 800E ON-SOON 0.5 km Hz Hx 2000E SOON - 400S 0.9 km Hz Hx 2200E SOON - 400S 0.9 km Hz Hx

19 4.4(x2) 2RX+1 Finish reading lines from loop 3. DB 4-CG finishlines 4, 8 and 10. CH * BK. read lines 18 * 16. LR continues laying loop 4. CG quits as of tonight

400E ON-SOON 0.5 km Hz Hx 800E ON-600S 0.6 km Hz Hx 1000E 600S - SOON 1.1 km Hz Hx 1600E 600S - SOON 1.1 km Hz Hx 2200E 600S - SOON 1.1 km Hz Hx

20 2.2(x2) l Rx * 2 Start reading lines from loop 4. DB + LR read line12, CH * BK read line 14. DB + LR set up Tx, CH + BK continue laying loop 4. CH * LR go to Vermilion Bay to pick up Lyle Allen (LA).

1400E 600S - SOON 1.1 km Hz Hx 1200E 600S - SOON "1.1 km Hz Hx

21 3.7(x2) 2 Rx * l Read lines from loop 4. DB * BK finish layingloop 5. LR starts picking up loop 3, DB * BK read lines 34E, 32E. CH -i- LA read lines 38E, 36E, 30E.

3000E 400S - SOON 0.9 km Hz Hx 3200E 200S - SOON 0.7 km Hz Hx 3400E 200S - SOON 0.7 km Hz Hx 3600E 200S - SOON 0.7 km Hz Hx 3800E 200S - SOON 0.7 km Hz Hx

22 2.7(x2) l Rx * 3 Finish reading lines from loop 4. DB * LA readlines 28E, 26E. CH * BK read line 24E. LR * BK start laying out loop 5.

2800E 400S - SOON 0.9 km Hz Hx 2600E 400S - SOON 0.9 km Hz Hx 2400E 400S - SOON .0.9 km Hz Hx

Snake Falls UTEM p. 3

Nov 23 - P5 CH goes to Ear Falls to do shopping and returns at11 am. Everybody laying out loop 5, line 54 E is missing north of the baseline.

24 5.3(x2) 2 Rx * l Start reading lines from loop 5. DB * LA read lines48E, 50E, 52E. Ch + B read lines 40E to 46E. LR lays out loop 6.

4000E 4200E 4400E 4600E 4800E 5000E 5200E

200S- 200S- 200S- 200S- 400S- 400S- 200S-

500N SOON SOON SOON SOON SOON SOON

0.7 0.7 0.7 0.7 0.9 0.9 0.7

km km km km km km km

HzHx HzHx HzHx HzHx HzHx HzHx HzHx

25 2.0(x2) l Rx * 3 Start reading lines from loop 6. DB * LA read lines4E, 6E, 8E. LR 4- BK chaining those lines * picking up loop 5. CH picking up loop 5.

400E SON-SOON 0.75 km HzHx600E 50N-800N 0.75 km HzHx800E 100N-600N 0.5km HzHx

26 - P5 DB, LA 4 LR finish picking up loop 3, 5 4- 6 whileCH * BK pack up camp. Move to Ear Falls in afternoon.

THE UTEM DESIGN PHILOSOPHYUTEM uses a large, fixed, horizontal transmitter loop as its source. The loop may range in

size from 300m x 300m up to as large as 4km x 4km. In general, smaller loops are used over conductive terrain whereas larger loops may only be used over resistive terrain. Depending on the noise levels, measurements may be made out to a distance of 1.5 to 2 times the loop dimen sions. Lines may be surveyed out from the edge of the loop (used to detect dipping conductors) but may also be read across the loop wire through the centre of the loop (used to detect horizon tal conductors).

The vertical component of the magnetic field (Hz) of the loop is always measured. However, horizontal in-line (Hx) and cross- line (Hy) components may also be measured if more detailed information is required. A receiver coil mounted on a portable tripod is used to measure the magnetic field. The UTEM system is also capable of measuring the two horizontal components of the electric field (Ex, and Ey), but this is used only for very specific geological problems. A dipole sensor comprised of two electrodes is used to measure the electric field components.

Snake Falls UTEM p. 4

The UTEM transmitter passes a low-frequency (4 Hz to 90 Hz) current of precise triangular waveform through the transmitter loop. The frequency may be set to any value within the operat ing range of the transmitter, but is usually set at 31 Hz so as to minimize powerline effects (60 Hz noise). Since the receiver coil responds to the time derivative of the magnetic field, the sys tem really 'sees* the step response of the ground. UTEM is the only time domain system which measures the step response of the ground. All other systems to date transmit a modified step current so that they 'see* the (im)pulse response of the ground at the receiver.

The transmitted ('primary') field induces current flow in the ground below and around the transmitter loop (i.e. hi the "half-space") which itself produces a measurable EM field called the secondary field. This current flow has an inherent "momentum* which resists the change in primary field direction (at each step) much like the flow in a bucket of water resists being forced in the other direction after it has been stirred. It takes a certain amount of time for the current to be redirected by the new primary field direction; this time is called the time (decay) constant. The time constant of a good conductor is greater than that of a poor conductor. By analogy, a current vortex in a smooth-walled swimming pool would have a greater time constant, in this case the time required to get the whole vortex moving in some direction, than that hi a swimming pool lined with baffles (to offer resistance to the flow of water.

The large scale current which is induced in the half-space by the primary field produces the half-space response as seen in typical UTEM profiles. Other currents may be induced hi locally more conductive zones (conductors). In general, these have greater time constants than the half- space response. Such responses are superimposed upon (and distorted by) the half-space re sponse. Using a scale modeling tank, the UTEM response of many different conductive bodies has been measured (in free space). These responses take the form of one or several crossovers with a variety of amplitudes and shapes. They have been assembled into type curve suites which are available from Lamontagne Geophysics.

SURVEY DESIGNTwo loops were laid out to survey Dixie 19 grid and four to survey Dixie 3 grid (see Figure l

and 2 for loop locations). All loops (except for 6) were located north of the south dipping target to insure maximum coupling between the primary field and target Loop 6 was located south of the target horizon to get better coverage of the anomaly along lines 4E, 6E and 8E. Both the vertical (Hz) and horizontal (Hx) components of the magnetic field were measured The response was sampled at 10 delay time windows (channels) ranging from 25 microseconds to about 13 milliseconds. The line interval was 200m and the station interval was 50m except near anomalies where it was reduced to at least 25m.

Each station surveyed was stacked for a minimum of 1024 cycles to ensure that adequate precision for interpretation of any deep features was obtained. At the ends of the lines away from the transmitter loop, longer averages were used to improve data quality.

Snake Falls UTEM p. 5

N

AI6N

NORANDA EXPLORATION

SNAKE FALLS UTEM SURVEY

DIXIE 19 GRID

LOOP a LINE LOCATIONS

LAMONTAGNE 818!500 m.

Figure l: Loop locations and survey line layout for Dixie 19 grid UTEM survey.

I5N

o "*LJ

53

I— o o T) O n m r- O o 3 to

g X m o* O

g m 5 r~ r~ CO c

m 2

CO c: 3) rn

•z. 0 z J-, m

x TJ 5 33 ^

O Z figu

re 2

: Loo

p lo

catio

ns a

nd s

urve

y lin

e la

yout

for D

ixie

3 g

rid U

TEM

sur

vey.

DATA PRESENTATIONThe data are plotted in 'channel l normalized* form whereby a different reduction formula is

used for channel l and the rest of the channels.

The channel l data are reduced before plotting according lo the formula:

RI - (Cbl ^ - HP J l (HP) xC C C

The other channels or reduced using a slightly different formula:

Hz: Rnc - (Chnc - Oil c) l (Chl c) x 10007o

Hx: Rnc ^ (Cnnc - Chl ^ j (H P) x l 0(W6

In these expressions, Chnc is the raw component c value for channel n, Hp is the computed

primary field, and the index c indicates any field component The format used hi plotting the Hz

data is called 'continuously normalized* where H p in the formulae above is the total primary field at each respective survey point, whereas the format used In plotting the Hx data is called

'point or absolutely normalized" where Hp in the formulae above is the total primary field at a selected station on the survey line. This point is denoted by "***3-" on the plot

The data are plotted on three axes. On the bottom axis channel l (latest time) is plotted alone, normalized to the calculated primary field. The intermediate to late time channels (ch5 - ch2) are plotted on the center axis. The early time channels (Chl O - ch6) along with a repeat of channel 5 for comparison are plotted at the top on a reduced scale. The Y axis on each plot-represents the difference from 10007o of channel l (or calculated primary field in the case of channel 1).

TABLE H: UTEM SYSTEM M EAN DELAY TIME

channel number12

4567 g910

delay time (msec) 12.8 6.4 3.2 1.6 0.8 0.4 0.2 0.1 0.05 0.025

Base frequency s 31 Hz

Symbol

D

X AO

Snake Falls UTEM p. 8

INTERPRETATION

Dixie 19 Grid

Only one conductor of note was identified from the interpretation of the UTEM profiles. Two other possible conductors are also described below, but these poor quality anomalies strongly suggest that these are in fact local changes in contact styles which only produce anomalies simi lar to those caused by true conductors. Several contact anomalies define changes in lithology across the grid.

Anomaly AThis anomaly is due to a limited strike-length, good conductor lying at depth. It extends

from line 14E to 18E. The western end of the conductor appears to be gradational, perhaps thin ning to a contact horizon. This is suggested by the fact that an anomaly on line 12E has a similar attitude to the main conductor but a much shorter time constant. On the other hand, the east end of the conductor appears to be terminated abruptly. An implied fault, seen as a shift in the con tact anomalies, between line 18E and 20E may be responsible for this sudden truncation of the conductor. A lower amplitude anomaly having the same time constant and attitude as that of the main conductor may be seen in line 20E. This is probably the off-end anomaly due to the main conductor and is not caused by conductive material below the line. Anomaly A is best on line 14Eandl6E.

The amplitude decay plots for Anomaly A on lines 14E and 16E are shown in Figure 3. The decay fits that of a finite thick dyke quite well. Using the appropriate formula, the conductance is estimated to be about 12.5 S using either decay. The depth to top is more accurately deter mined for line 14E. The top of the conductor lies at a depth of about 215 10 metres. On line 16E, the anomaly is not so well defined and as a consequence the depth to top estimates vary widely depending on the parameters used in the calculation. However, using the most reliable es timators, the depth to top below line 16E would be in the range of 175 -200 metres. A subtle kink in the crossover and a shift in the location of the Hx peak at early times suggests the presence of a shallow conductor with a shorter time constant lying to the north. Perhaps it is the presence of this conductor which distorts the anomaly to yield the wide range of depth estimates.

Due to the relatively large depth to size ratio of this conductor, the dip cannot be determined quantitatively with any confidence. However, because there is no obvious asymmetry hi the crossovers, it is assumed that the dip is close to vertical. The inductive limit amplitude is consis tent with a depth extent of about 400 metres for the conductor below both lines.

The interpreted characteristics of Conductor A are summarized hi Table III below

Snake Falls UTEM p. 9

r

l;

Figure 3: Anomaly amplitude decay plots Dixie 19 Grid, top: line 14E, bottom: line 16E (amplitude in 07o)

oy

o

sgO X

l

"j

4

N

14

1;Snake Falls UTEM p. 10

TABLE ill: INTERPRETED CHARACTERISTICS OP CONDUCTOR A

Line 16E: location (both Hz and Hx) l+OON (Ch2 and 3)1+OON and 1+65N? (Ch 4 and 5)

depth to top

dip

depth extent

od

Line 1-;E: location (using only Hz)

depth to top

dip

depth extent

od

17 5-200 metres?

more or leas vertical

approx 400 metres

12.5 S

H35N(Ch2-5)

215 10 metres

more or less vertical

approx 400 metres

12.5 S

r.

Anomalies B and CThese are probable not caused by true conductors, but variations in the style of the contacts

lying just to the south. The otherwise clear contact anomalies are locally diffused by a gradation- al change in lithology across the contact. This results in an anomaly which resembles that of a conductor at depth. The fact that the time constants (Ch 7) are similar further suggests that these really are variations of the same thing.

Contact AnomaliesThree contact anomalies or types of contact anomalies may be identified hi the data. Anomaly

l is due to a conductive unit lying in contact with a more resistive unit to the north. Anomaly 2 extends the full length of the grid and is characterized by a uniformly high Hx amplitude to the north, A more conductive unit lying north of the contact would then be responsible for the anom aly. Another anomaly, labeled 2', marks the northern boundary of a resistive unit lying north of content 2. Similar resistive lenses, labeled 3, are also found north of contact 2 elsewhere on the grid. They are all characterized by a sharp positive leap hi the early time amplitudes.

Dixie 3 Grid

Two notable conductors were interpreted from the data of the Dixie 3 grid. One of these ex tends for over 1,000 metres and is comprised of a number of distinct sections. Several other weak anomalies were also noted along with four contact anomalies or zones.

i;Snake Falls UTEM p. 11

Anomalies A and A'The conductor responsible for this anomaly extends from line 24E to about line 38E. For part

of its length it is closely paralleled by a second, poorer conductor to the north. The depth to the top of the conductor varies along strike from shallow at its east end to deeper on its west end. This change m depth to top is sudden, appearing between lines 34E and 32E. The amplitude of the response over the more deeply buried parts of the conductor is considerably less than east of line 32E and as a consequence, the conductor characteristics are less well determined.

r The amplitude decay plots for lines 34E and 36E, where the anomaly is most apparent, arei found in Figure 4. The decays have a time constant of about 10 msec. Using the finite th.- k

dyke model, the conductance is about 80 S. Note that the channel l data point does not fit the

[ curve well, however this does not pose a serious problem because the channel l value anomaly serves to shift the small amplitudes significantly. The uncertainty is due to the fact that the chan nel l amplitude may only be estimated roughly from the data; chaining errors and other uncer-

j taintics in the primary field calculation contribute greatly to the variations hi channel amplitude.

t The amplitude decay for line 30E is shown in Figure 5. Note that two decays contribute to the j curve. The late time decay has a time constant of 10 msec.the same as for line 34E and 36E.

Another, shorter decay, 2 msec, is interpreted to be that due to the second conductor lying just to [ the north. This decay corresponds to a conductance of about 15 S.

The depth to top is well determined to be about 85 metres on line 36E and 45 metres on line 34E. The anomaly on line 34E yields a greater depth to top at late times. This is not unusual, since the current vortex tends to move down into the conductor with time.Dt line 30E, the depth to top increases markedly to somewhere between 150 and 200 metres. The very small amplitude

j of the response makes it difficult to determine this depth with any great precision. The neigh bouring conductor (A') appears to be at the same depth. West of line 30E, the anomaly amplitude

j is still small and the data quality is not quite as good, although still well within the normal ex- I pected range, making a determination of the depth to top less certain. However, the general

sense of the anomalies suggests a similar depth of burial and conductance.

' Both the anomaly shapes and inductive limit amplitudes indicate that the conductor below f lines 34E and 36E has a considerable depth extent; roughly 5 time the depth of burial or 250 -, 400 metres. To the west, with the smaller amplitude anomalies, the depth extent is not deter

mined with any confidence. The conductor appears to dip about 800S at lines 34E and 36E. No f - obvious change in dip is noted to the westt

The interpreted characteristics of Conductor A are summarized in Table III below.

Snake Falls UTEM p. 12

Figure 4- Anomaly amplitude decay plots Dixie 3 Grid.top: line 36E, bottom: line 34E (amplitudein 07o)

c x.

1 1

sS

N

r.

i:

S

-i———J-

-l

v\ N

Snake Falls UTEM p. 13

l;

Figure 5: Anomaly amplitude decay plots Dixie 3 Grid for line 30E (amplitude in 0Xo)

\\

\

{O

S

\

t 5 f 3

Snake Falls UTEM p. 14

TABLE IV: INTERPRETED CHARACTERISTICS OF CONDUCTOR ALine 36E: location (both l,' and Hx) l^ 17N (Ch2 - 5)

depth to top 85 ± 5 metres

dip

depth extent

ad

800S

approx 250-400 metres

80S

Line 34E: location (both Hz and Hx) l +28N (Ch2 - 5)

depth to top 45 ± 5 metres

dip 800S

depth extent approx 250-400 metres

od 80S

Line 30E:Conductor A: location (both Hz and Hx) 50N(Ch3-4)

depth to top

dip

depth extent

od

150-200 metres?

800S?

approx 250-400 metres?

approx 80 S

Conductor A': location (both Hz and Hx) 95N (Ch6-7)

depth to top 45 ±5 metres?

dip 800S?

depth extent approx 250-400 metres?

od 16 S

Snake Falls UTEM p. 15

i;i:F1. r.

Anomaly BA second, very good conductor lies at the western end of the grid and is responsible for an

anomaly labeled B on the interpretation sheet. Anomaly B is best on lines 6E and 8E. On line 6E the interpreted location of the conductor changes depending on the loop used. This may be due to a finite width or more probably an inherent uncertainty due to the very small amplitude of the response on this line. The anomalies lying on the two neighbouring lines (4E and 10E) are inter preted to be of f-end anomalies.

Amplitude decay plots for line 8E using both the north (3) and south (6) loops are shown in Figure 6. At late times, the decay curve for a finite dyke may be fitted to the observed decays. Using the formula for a finite dyke, the conductance is estimated to be about 80 S. The shape of the decay curve appears to vary depending on the loop used; i.e. it is dependent on the coupling. The large amplitude at early times using the north loop is possibly caused by the presence of an other conductor lying just to the north - the two responses may be interfering with each other. However, the interpretation of the north conductor is based on the response at one or two stations and the amplitudes are very much smaller than those of the main conductor.

The amplitude decay plot for line 6E using the south loop is shown hi Figure 7. It appears that two decays are present, as was the case for line 8E above. The estimate of the decay constant is based on two points only. The conductance is found to be roughly 50 S, but this estimate is not made with great confidence. It is possible that the response is also influenced by the shallow, horizontal conductor lying on line 4E nearby (see below).

The depth to top for the conductor on line 8E is well determined to be 27±3 metres using both loops. This increases to between 110- 150 metres under line 6E where the anomaly amplitude is greatly reduced. There does not appear to be any obvious dip, but the very broad negative anom aly indicates that the depth extent is considerable - at least 5 times the depth of burial (250 - 500 metres).

The characteristics of conductor B are summarized in Table V below.

Other AnomaliesOther anomalies were identified in the data. Most were attributed to contacts. Contacts la

beled l and 2 define the northern and southern boundaries of a more resistive zone in the bed rock towards the eastern end of the grid. Similarly, a resistive unit labeled 3, lies between two contacts in the central portion of the grid. This unit appears to have no clear western boundary* A poorly defined resistive zone is apparent on line 12E and possibly line 10E and is labeled 4.

Snake Falls UTEM p. 16

F

Fieurc 6: Anomaly amplitude decay plots Dixie 3 Grid.top: line 8E (north loop), bottom: line 8E (south loop) (amplitude in 0Xo)

4 s.

"X

x

, / l

-l

lil:

A l 9.

V*

* C

70 l

\ \

^

XO

Snake Falls UTEM p. 17

l.

Two conductive patches (horizontal conductors of limited extend) were also noted hi the data. One lying on contact l has a response showing the same decay as that of the contact Therefore, it is a locally more conductive zone near surface which changes the shape of the anomaly to that of a small, limited depth extent, horizontal conductor. A similar anomaly on line 4E does not appear to be associated with any contact, but is a reasonably conductive body in itself. Note that it was not visible in teh data from the north loop because it lies directtly under the loop front where it is essentially null-coupled. Its amplitude decay (Figure 8) fits that of a finite thin layer having a conductance of about 40 S. It lies at a depth of about 25 metres. Its western boundary was not surveyed.

i;TABLE V: INTERPRETED CHARACTERISTICS OF CONDUCTOR B

Line 8E: location (using both loops) 2+45N (Ch2 - 5)

depth to top

dip

depth extent

od

Line 6E: location (using loop 6)

depth to top

dip

depth extent

ad

27 ± 3 metres

vertical

at least 250 metres

80S

3+30N (Ch2) 3+90N (Ch4)

135 ±30 metres

vertical

at least 500 metres

SOS

i:

l;Snake Falls UTEM p. 18

f

L i!

LO

T

l

*t

Figure 7: Anomaly amplitude decay plots Dixie 3 Grid for line 6E using south loop, (amplitude in 07o)

\

\

\\ \ \\\

Snake Falls UTEM p. 19

Figure 8: Anomaly amplitude decay plots Dixie 3 Grid for line 4E using south loop, (amplitude in 0Xo)

(Oo

r

i; i o

liSnake Falls UTEM p. 20

FURTHER WORKConductor A (Dixie 19) and Conductors A and B (Dixie 3) should be investigated by drilling.

Conductor A of the Dixie 19 grid lie^ l a greater depth than I believe has been tested to date. The better part of the conductor is located away from the area previously investigated. This makes it an interesting target. On the Dixie 3 grid, the down-plunge extension of Conductor A has probably not been investigated. This would also make it an interesting target. The shallow deptli to top of Conductor B of the Dixie 3 grid leads me to suspect that it has already been in vestigated, but the deeper part on line 6E may prove to be of interest.

In lieu of drilling, further UTEM coverage at a tighter line spacing (100 m) would help to de fine the extent of the conductors better.

Snake Palis UTEM p. 21

l: f-

UTEM Profiles

Hz PROFILES

AJ •—'*

V)

208S

268N

\

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION

conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q Chz) 30.974

loop no i lin* 0 component Hz ••condory field Ch t contln, norm.

-M c--

7*

400N

200N

tn x

200S

408S

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION

conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.* fr.q ChO 30.974

loop no 1 Una 200E component Hz aacondory f laid Ch l coni In. norm.

f:•U

400S

288S

288N

400N

en

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduced by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.q Chi? 38.974

loop no l lin. 488E compon.nl Hz ••condor-y f l.Id Ch l conlln. norm.

i;

i:

i;UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION

cor-ducl.d by LAMONTAGNE GEOPHYSICS LTD job 8828 boe. fr.q (Ksi 30.974

loop no t line 600E component Hz secondary field Ch l coni In. norm.

j;

r

i-C. --7*

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION

conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q (h.) 30.974

loop ne 1 lin. 800E compon.nl Hz •.oondory f l.Id Ch t coni In. norm.

i; i:

UTEM SURVEY o t SNAKE FALLS for NORANDA EXPLORATION conduced by LAMONTAGNE GEOPHYSICS LTD j ob 8828 bo., fr.q Ch*) 30.974loop no l lin. I000E co.ipon.nt Hz ..oondory fl*ld Ch t conlln. norm.

480S

200S

ro en

200N

400N

UTEM SURVEY ok SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q CHO 30,974loop no l l! In. l 200E component Hz ••condory f t.Id Ch l coni In. norm.

400S

200S

200N

400N

ro tn

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION

conduck.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q Cha) 30.974

loop no l lin* I 400E compon*nl Hz •econdorv fl*ld CS l eon lin. norm.

l—i—i—i—r

200S

0

200N

400N

-l————l————L.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bos.loop no l line l 800E component Hz secondary field Ch l

cho 30.974cent In. norm.

F200S

200N

400N

K) Ul

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bat. f r .q ChzJ 30.974loop no l line 2000E component Hz secondary field Ch t contln. norm.

f.

C

2S

2N

4N

<

rotn

)

UTEM SURVEY ok SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., fr.q (so 38.974loop no 2 lin* 2200E component Hz ••condory field Ch l eontln, norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION condud.d by LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., fr.q Ch.J 30.974loop no 2 tin. 2408E component Hz ..condory field Ch l coni In. norm.

i:

2S

2N

4N

T——l——l——l——l

ro in

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION condud.d by LAMONTAGNE GEOPHYSICS LTD. job 8 820 bo., fr.q Chz? 38.974loop no 2 lin* 2600E component Hz ••condory ft*ld Ch l oonlln. norm,

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION condud.d by LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., fr.q (h.) 30.974loop no 2 lin* 2800E component Hz ..condory field Ch l eontln, norm.

25

2N

fOin x

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., fr.q (hz) 30.974loop no 2 lin* 3000E component Hz ••condary f l* l d Ch l coni In. norm.

r.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduoi.d by LAMONTAGNE GEOPHYSICS LTD. job 8828 bo., fr.q (h.? 30.974loop no 2 l In* 3200 E, component H Z a* condor y f J * l d CK l coni l n . norm .

I:

i:

cli UTEM SURVEY ok SNAKE FALLS for NORANDA EXPLORATION

conduct.d by LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., o.q (hzJ 30.974loop no 2 M rv* 3400E component Hz ••oondory fl*ld Ch l ooniln. norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduci.d b v LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., fr.q (h.? 30.974loop no 2 lin* 3600E component Hz ••condory field Ch l coni In. norm.

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION condud.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q ChzJ 30.974loop no 3 lin. 400E component Hz ••condary fl.ld Ch l coni In. norm.

400S

200S

200N

400N

tn

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.* fr.q CHO 30.974loop no 3 lin* 600E component Hz ••condory field Ch l coni In. norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.. fr .q ch*j 30 .974loop no 3 lin. 800E component Hz .econdory fl.ld Ch l coni In, norm,

r 600s

400s

200s

. 0

280N

400N

ro tn x

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduol.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q CSz) 30.974 loop no 3 lin. l 000E conpon.nt Hz ..eondary f l.Id Ch l coni In, norm.

400S

200S

200N

400N

fo en-T—i r-

tn x

4————l————J————l- -t—— —t———i————l

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION

conduot.d by LAMONTAGNE GEOPHYSICS LTD job 8 820 bo.* fr.q ChO 30.074 loop no 3 lin* l 200E component Hz ••oondory flvld CK t coni In. norm.

t .

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD j ob 8820 bo., f r.q ChO 30 . 974loop no 3 lin* l 400E component Hz secondary field Ch l conlln. norm.

[j480S

208S

209N

408N

ro

l;(i

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION oonducUd by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.q Chi5 38.974loop no 3 lin. l 680E compon.nl Hz ..condory f l.Id Ch l coni In. norm.

i:

488S

200S

0

208N

400N

fo en x 5) O

I;

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduoUd by LAMONTAGNE GEOPHYSICS LTD job 8820 ba.. f r.o. ChO 38.974loop no 3 Mn* l 800E component Hz ••condory fl*ld Ch l contln. norm.

l:

i;UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION condud.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.* fr.q th.) 30.974 loop no 3 lin* 2000E component Hz ••condory fl*ld Ch I coniln. norm,

[j

l.

F;

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.q Ch*5 30.974loop no 3 lin* 2200E component Hz ••condory f 1*1 d Ch l coni In. norm.

400S ' T"

Ei l

i;

200S

208N

400N

in

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMON T AGNE GEOPHYSICS LTD job 8820 bo., fr.q ChiJ 38.974loop no 4 Mn. 2 400E component Hz e.condory f laid Ch l coni In. norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.q Ch*J 30.974loop no 4 lin* 2608E component Hz ..condory field Ch l conlln. norm.

i;

200S

200N

400N

roVI

UTEM SURVEY Qt SNAKE FALLS fer NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo*, fr.q thii 38.974loop no A l in* 2800E component Hz ••condory field Ch l coni In. norm.

1:

200S

x

200N

400N

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION eonducud by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q Chz? 30.974loop no 4 lin. 3000E eonpon.nt \\Z . .condorv fl.ld Ch t coni In. norm.

sees

. 400N l

to tn 5) X s x

i;

UTEM SURVEY ok SNAKE FALLS for NORANDA EXPLORATION conduced by LAMONTAGNE GEOPHYSICS LTD job 8829 bo., fr.q CKO 30.974loop no 4 lin. 3208E co.ipon.nt Hz ..condorv fl*ld Ch l oontln. norm.

l!

r

t; i: 208N

408N

ro w x

\

S)x K X

l;UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.q eh*? 30.974loop no 4 lin. 3400E compon.nl Hz ..condory f l.Id CK i eonlln. norm.

M

C:

200S

200N

. 400N

g

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduoUd by LAMONTAGNE GEOPHYSICS LTD job 8828 bo.. fr.q Ch*J 38.974 loop no 4 lin. 3608E conpon.M Hz ..condory field Ch l eonlln. norm.

*——l——l——T~

208S

ro in

. 0

208N

400N

t

1

ro s

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q ChzJ 38.974loop no 4 lin* 3800E component Hz ••condory field Ch l oontln. norm.

p

c

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD Job 8826 bo., fr.q (h*) 30,974loop no 5 lin. 4080E oonpon.nl Hz ••condory fl.ld Ch l coni In. norm.

\

200S

200N

400N

in x

UTEM SURVEY o l SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.* fr.q csz) 38.974loop no 5 lin* 4200E component Hz ••condory fl*ld Ch t coni In. norm,

n

P.

i; i;

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD Job 8826 bo., fr.q Cho 30.974loop no S lin. 4400E component Hz ..condory f l.Id Ch l eontirt. norm.

i;ro w ro x

200S

r

200N

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.. O.q O,** 30.874loop no 5 lin* 4600E component Hz ••condory fUld Ch l coot In. nor*.

l:

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conduced by LAMONTAGNE GEOPHYSICS LTD job 8828 bo.* fr.q th*J 38.974 loop no 5 lin* 4800E conpon*nt Hz ••condory fl*ld Ch l conlln. norm.

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conduced by LAMONTAGNE GEOPHYSICS LTD Job 8 820 bo., fr.q ChaJ 30.974loop no 5 Mn* 5000E component Hz ..condopy f laid Ch l contln. norm.

en

200S

200N

400N

UTEM SURVEY o i SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q C hz? 30.974loop no 5 lin. 5200E compon.nl Hz ..condory f l.Id Ch l cool In. norm.

[;

F l'

200N

400N

600N

800N

tn o

l;

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTANGE GEOPHYSICS LTD. job 8820 bo., fr.q chz) 30.974loop no 6 line 400E component Hz secondary fl*ld CS t point norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION co,-duct.d by LAMONTANGE GEOPHYSICS LTD. job 8820 bo., fr.q Cho 30.974loop no 6 line 600E component Hz ••condory f l* l d Ch l point norm.

i;

i:UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION

conducted by LAMONTANGE GEOPHYSICS LTD. job 8820 bo., fr.q Chz5 3fc 974loop no 6 line 800E component Hz eecondory f l* Id Ch 1 point norm.

i: t;t:

r. Hx PROFILES

C

l.

lir :i. -

200N

200S

408S

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION condud.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., o.q ChiJ 30.974loop no 1 l l n* 0 coupon* rt i H X secondary f l * ) d Ch l po 1 nl norm.

r — i — j — i — j —

200N

0

200S

400S

— i — i — i — i — i t roenx

'

i1

1

\

\

\\

s xroS) S)x

L ~

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q Chz) 30.974loop no 1 line 200E component Hx aocondory fl*ld Ch l point norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION ccnducl.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q Chz) 38.974loop no l lin. 400E eorapon.nt Hx ..oondopy f l.Id Ch l polnl norm.

r 208S

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 ba.e fr.q ChO 30.974loop no l lin* 600E component Hx secondary field Ch l point norm.

i '

r

-w- 480S

200S

200N

400N

to en x

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conduol.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.o, Chs) 30.974loop no 1 lin* 800E component Hx ••condory fl*ld Ch l polnl norm.

l:

f ~-408S

208S

200N

-: 480N

608N

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo*, f r .o. CKiJ 30.974loop no l l l ri* l 800E component Hx ••condory fl*ld CK l point norm.

A

408S

200S

200N

400N

ro en

UTEM SURVEY ok SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8829 bo., fr.q Cho 30.974loop no l lin. l 200E compon.nl Hx *.condory f l.Id Ch l point norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION condud.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., f r.q (hi) 38.974loop no 1 lino l 400E component Hx ••condory fl*ld Ch l polni norm.

V

\ [i r i; ii;

i;

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8 820 bo., o.q thai 30.974loop no l lin* l 600E component Hx ••condory fl*ld Ch l point norm.

200S

200N

•400

f\)en x

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8 820 bos. fr.q Cnz) 30.974loop no l line 1 800E component Hx secoridory field Ch ! point norm.

L

i;A

400S

200S

200N

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q Chai 30.974loop no l ! In* 2000E component Hx ••condory fl*ld Ch ! point norm.

i:

l—————l—————L.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., fr.q (h*? 30.974loop no 2 lin* 2200E component Hx ••condory field Ch l point norm.

i!

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD. job 8828 bo., fp.q (ho 30.974loop no 2 lin* 2400E component Hx ••condory fl*ld Ch l poinl norm.

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION aondueUd by LAKONTAGNE GEOPHYSICS LTD. job 8820 ba.. fr.q (h.) 30.974loop no 2 lin* 2600E component Hx ••condory f laid Ch l point norm.

l!

4S

2S

2N

w in xS)x

UTEM SURVEY ok SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD. j ob 8828 bo., fr., (h,) 30.974loop no 2 lin. 2800E co^pon.r.1 Hx ..eondory fl.ld Chl polr-lnorm.

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD. job 8828 bo., fr.q (hz) 30.974loop no 2 l In* 3000E. component Hx ** condor y f l * l d Ch l polni norm .

i: i;

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduct.d bv LAMONTAGNE GEOPHYSICS LTD. job 8820 bo., o.q Chx) 30.974loop no 2 tin* 3200E component Hx ••condory f 1*1 d CK l point norm.

J*. Q Q

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD. job 8828 bo., fr.q Chr? 30.974loop no 2 lin* 3400E component Hx ••condory fl*ld Ch l point norm.

2S

2N

i:UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD. job 8828 bo.. o.q Chzj 39.974loop no 2 l lo* 3600E component Hx ••condory f l* Id Ch l point norm.

200N

*00fl~~

ro en IS)s

\

(9 S) i?

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8828 bo.* fr.q CK*J 30.974loop no 3 lin* 400E component Hx ••condory fl*ld Ch l point norm.

S) S)

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conducl.d by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.q (h.) 30.974 loop no 3 lin* 600E component Hx ••condory fl.ld Ch l point norm.

600S ' '

f:400S

200S

i;UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., o., Chi) 30.974loop no 3 lin* 800E component Hx secondary fl*ld Ch 1 point norm.

rI;

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q ChiJ 30.974loop no 3 lin* l 600E component Hx ••condory f laid CK l point norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.c, Cha) 38.974loop no 3 lin* 1 200E conpon.nl Hx ••condor y field Ch l point nor in.

(i

600S

400S

200S

200N

M W

400N\

l

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q (ho 30.974loop no 3 l i ri* l 400E component Hx ••condory field Ch l point norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION eonduck.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q O.*) 30.974loop no 3 lin. l 600E compon.nl Hx ..conclory f l.Id Ch l point norn.

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.q (hi) 30.974loop no 3 lin* 1800E conpon.nt Hx ••oondary f l.Id Ch l point norm.

-i—i—i—i—i—r

480S

290S

480N

CD

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conducl.d by LAMONTAGNE GEOPHYSICS LTD job 8828 bo., fr.o ChiJ 30.974loop no 3 lin. 2008E oompon.nt Hx ..condory fi.Id Ch l point norm.

l:

400S

200S

0

200N

400N

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION condoci.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q Chz> 30.974loop no 3 Mn* 2200E component Hx secondary fl*ld Ch l point norm.

UTEM SURVEY oi SNAKE FALLS fop NORANDA EXPLORATION conduot.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo*, fr.q (h*J 38.974loop no 4 lin. 2400E component Hx ••condory field Ch l point norm.

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q thi? 30.974loop no 4 lin* 2600E component Hx ••condory field Ch 1 point norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduoUd by LAMONTAGNE GEOPHYSICS LTD job 8828 bc., fr.q ChiJ 38. 974loop no 4 Mn* 2800E compon.nl Hx • •condory f laid Ch l point norm.

i

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD job 8828 bo.* fr.q ChO 38.974loop no 4 lin* 3008E component Hx ••condary field Ch l point norm.

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q thO 38.974loop no 4 lin* 3200E conpon*nt Hx ••condory fl*ld CK l polnl nor*.

208N

400N

ro

UTEM SURVEY o l SNAKE FALLS for NORANDA EXPLORATION conduol.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q ChiJ 30.974loop no 4 l In* 3400E component Hx ••oondory field Ch l point nor*.

l! f

208S

200N

0N

ro en S)x

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conduced by LAMONTAGNE GEOPHYSICS LTD job 8828 bo.* fr.q Chi? 30.974loop no 4 Mn* 3600E component Hx ••oondory fl*ld Ch l polnl norm.

200S

0

208N

400N

in x

UTEM SURVEY ot SNAKE FALLS fop NORANDA EXPLORATION eonducUd by LAMONTAGNE GEOPHYSICS LTD job 8828 bo.* fr.q Chai 30.974loop no 4 Hn* 3800E component Hx ••oondory fUld Ch l polnl norm.

r

l!

i;r

200S

200N

. 400N

roV}x S)

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conduci.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.* fr.q Chi) 30.974 loop no 5 l lr\* 4000E ooopon*nl Hx ••condory fUld Ch i point norm.

r 200S

200N

400h

01

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduok.d by LAMONTAGNE GEOPHYSICS LTD job 8828 bo*, fr.q Cho 38.974loop no 5 lin* 4200E conponvnt Hx ••condory fl*ld Ch l point norm.

f

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTAGNE GEOPHYSICS LTD job 8828 bo*. fr-.q cho 30.974loop no 5 lin. 4400E component Hx ••oondory fl.ld Ch l point norm.

n n

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conducted by LAMONTAGNE GEOPHYSICS LTD job 8820 bo., fr.q (h*J 30.974loop no 5 lin* 4600E component Hx ••condory fUld Ch l polnl norm.

UTEM SURVEY oi SNAKE FALLS for NORANDA EXPLORATION conducUd by LAMONTAGNE GEOPHYSICS LTD job 8828 bo.. fr.q Ch*3 38.974loop no 5 lin. 4880E component Hx ••coodory fl*ld Ch l point norti.

UTEM SURVEY ol SNAKE FALLS for NORANDA EXPLORATION conduot.d by LAMONTAGNE GEOPHYSICS LTD job 8820 bo.* fr.q chaJ 30.974loop no 5 lin* 5800E component Hx ••condory fl*ld Ch l point norm.

t;

UTEM SURVEY at SNAKE FALLS for NORANDA EXPLORATION conducted bv LAMONTAGNE GEOPHYSICS LTD job 8820 bo.* fr.q Chx? 38.974loop no 5 lin* 5200E component Hx ••condary field Ch l point norm.

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION conduct.d by LAMONTANGE GEOPHYSICS LTD. job 8820 bo., fr.q ChO 30.974loop no 6 lin* 400E compon.nt Hx ..condory fl.ld CK t point norm.

l:

UTEM SURVEY ot SNAKE FALLS for NORANDA EXPLORATION cor,duct.d by LAMONTANGE GEOPHYSICS LTD. job 8820 bo., fr.q Chx5 30.974 loop no 6 Mn. 608E component Hx ..condor y f Ltd Ch l point norm.

200N

400N

600N

viS)

UTEM SURVEY at SNAKE FALLS fop NORANDA EXPLORATION conducted by LAMONTANGE GEOPHYSICS LTD. job 8820 bo., fr.q Cho 30.974loop no 6 lin* 800L component Hx ••condory fl*ld Ch l point norm.

52KMSEOa05 2.12343 KARAS LAKE 900Ontario

Ministry ofNorthern Developmentand Mines

Ministere duDeVeloppement du Nord et des Mines

August 29, 1989

Mining RecorderMinistry of Northern Development and MinesP.O. Box 324Red Lake, OntarioPOV 2MO

Mining Lands Section 880 Bay Street, 3rd Floor Toronto, Ontario M5S 1Z8

Telephone: (416) 965-4888

Your File: W8902-035 Our File: 2.12343

Dear Sir:

Re: Notice of Intent dated July 28, 1989 Geophysical (Electromagnetic)Survey submitted on Mining Claims KRL 869362 et al in Karas Lake Area.

5

The assessment work credits, as listed with the above-mentioned Notice of Intent, have been approved as of the above date.

Please inform the recorded holder of-these mining claims and so indicate on your records.

Yours sincerely,

W.R. CowanProvincial Manager, Mining LandsMines A Minerals Division

LS:eb Enclosure

cc: Mr. G.H. FergusonMining and Lands Commissioner Toronto, Ontario

Noranda Exploration Co. Ltd. P.O. Box 2656 Thunder Bay, Ontario P7B 5G2

Resident Geologist Red Lake, Ontario

Of F-ICC-:

: ' - C f i V E D

/--,\ wmiiMiyui i ecimical Assessment FIU " ———— iIVL/1 Northern Oovelopmenl ,,,,^,. n, nn . n^UJ .nriMin^ Work Credits 2.12343

Ipnlario 0*" Mlnlno Recorder^ Repoa o'lJuly 28, 1989 ^ggbVoSS

NORANDA EXPLORATION COMPANY, LIMITED

KARAS LAKE AREA.Type of survey and number of

Assessment days credit per claimGeophysical

oQ c eieenromtynttir ZO . D rf,y.

Magnt lamettr , ri.y.

ftidiamorrii- , rlayf

Olh*c. dlyt

Section 77 (19) See "Mining Claims Assessed" column

Gporhemiral . rfay.

Man days ^| Airborne f~!

Special provision (~| Ground K

f~l Credits have been reduced because of partial coverage of claims.

[~i Credits have been reduced because of corrections to work dales and figures of applicant.

Mining Claims AsMsud

KRL 869362 to 367 incl. 974679-80 988726 to 735 incl.

1

Special credits under tection 77 (16} for the following mining claims

No credits have been allowed for the following mining daimt

g) not lufdciently covered fay the survey Q Insufficient technical cUta filed

KRL 974681-82 974689-90

The Mining Recorder may reduce the above credits if necessary in order thai the toul number of approved assessment days recorded on each claim does not exceed the maximum allowed as followi: Geophysical-60; Ceologocal' 40; Geochemical. 40; Section 77(19) -60.

iza pssmj

Ministry ofNorthern Development••nd Mines

Report of Work(Geophysical, Geological, Geochemical and Expendil

DOCUMENT No ^8902*^35S5

fHrnJt

Mining Act

nstructions: — Please type or print.— If number of mining claims traversed

exceeds space on (his form, attach a list. Note: — Only days credits calculated in the

"Expenditures" section may be entered in the "Expend. Days Cr." columns.

— Do not use shaded areas below.Typo of Surviiy(s)

UTEMClaim Holder(s)

Noranda Exploration Company, LimitedAddress

P.O. Box 2656, Thunder Bay, -Ontario P7B5G2Survey Company

-3-4-3Township or Area

G-l80l Karas LakeProspector's Licence No.

A 34387

of Survey ( '26"" 11 88l/ li 001 iO li 0 0Noranda Exploration Company, Limited ^ \Jb*y [ MO. l Yr. | Day | MO. | vr.

Name and Address of Author (of Goo-Technical report)

John Gingerich, P.O. Box 2656, Thunder Bay, Ontario P7B 5G2

Total Miles of line Cut

Credits Requested per Each Claim in Columns at rightSpecial Provisions

For first survey:Enter 40 days. (This includes line cutting)

For each additional survey: using the same grid:

Enter 20 days (for each)

Man Days

Complete reverse side and enter total (s) here

Airborne Credits

Note: Special provisions credits do not apply (o Airborne Surveys.

Geophysical

- Electromagnetic

- Magnetometer

- Radiometric

- Other

Geological

Geochemical

Geophysical

- Electromagnetic

- Magnetometer

* Radiometric

- Other

Geological

Geochemical

Electromagnetic

Magnetometer

Radiometric

Days per Claim

Oayi per Claim

-M-JL

Days per Claim

——————

Expenditures (excludes power stripping)Type of Work Performed

.;i formed on Claim(s)

Calculation of Expenditure Days Credits

Total ExpendituresTotal

Days Credits

InstructionsTotal Days Credits may ho apportioned at the claim holder's choice. Enter numher of days credits per claim selected in columns ut riijhi.

Dale

March 9,1989Recjxtjid Holder or AgentUJignature)

_f f\ y. j. c-yf- \MJZ4j04juCertification Verifying Report of Work

Mining Claims Traversed (List in numerical sequence)

869365

869366

869367

988727

988728

988729

988732

988733

988734

Total number of mining claims covered by this report of work.

For Office Use OnlyTotal Days Cr. Recorded

Date Approved as Recorded

l herel)v certify that l have a personal and intimate knowledge of the facts jut forth in the Report of Work annexed hecelo, having performed the work or witnessed same during and/or after its completion and the annexed report is true.

Name and Postal Address of Person Certifying

Ronna F. Tergie, P.O. Box 2656, Thunder Bay, Ontario P7B 5G2Date CertifiedMarch 9, 1989

CerjXWd by (Signature)

i r— f l

r i x t ~— l i: ir i lr~

l\n J i if

.....-

i [ j ill *

I j i ?

S7?

* 0

a * 5'? j -".

t \r; ffi s s o -1

j2

iB 0 *. o. "

! io

zi'O 3"o

05

1

3o •n

t

i *

! :

i f j i i i

i

- i

HJ

!

-1

M It -j i i j i i i ;

: j f i ! i 1 i r t

i J ( : :

LS —— X ~v; n !~ t i a. j _ w t "" d Pf

LJ

^

CfS

tt ~

j

?"

-I

*

o|

* r*

O.

w

i^

P^

n s U? H •

± 3

*•7

-4

|2 *

J

o * Q. g? s" i s

0?

i-^

•J-9 fl '1

i i

^ <

O

ffi O y* c * -c

f J

1 l

\ i 1 t ! 1 i i! — ~

i

X

! "^

i '

-——

*

1 c —

i j —— 4-

——

i

IIi

——

1 | ^^^4

^

i

'l' r B

{

-4*^

-*

ir?

< ^

" s- fr

1 ?

i of. i* f. c c Q* f

l '

'

"V 5* < c

•*

.-* 3 c*

H O •M O i s !

o^

m l

)3^

0"*

"" i f J i t

9?

Ol

~^

?T

T '

1 ! 1 l1 1 c f c

l '

r J J |

i l

—J

*i i ^ t i !

i

'

j ( f 1 f !^ i L

\ i i t

vo

c* * *N^ 1) o

'jj o L 4- ——

^ :—

——

'

II -Jk C- O

i^J t N

,j

fO [

J

;i to

1 '•"l rJ

c- S

rf y

-c 3 •n

. ; i 1 1 i1

Y?

f

n

O o

*" C

i* r-

ol

W

*-r

<

C b *j

: 1J

f0

1

s 1

c 1

9 1 i i

Or

i 0

1

fa i j i

oS

i

* S

1^

15

1 1 1 J 1 1 i 1

1 i.

i * r t/ e a -c

en

H s i i i t

i 1 1 j ! l •f t

. — 1V

r* —

"*

c S. c

r5

~

Q- "

5 7

"

ri)rr

w^

rf

3

Q.

rp

rf-.ID

^

rt- ffi

~ 1 o* o

i -^ 1 3

o a- 0 r — 5'

? o c: *-* -j- a:-

5" 1 TI ?

'o *

iC

i 1

y i

A 3 0 c n n,

:*

i0

i7

-

ry ai :x o l

1 l

S!

* i i

"T*","

V

ix b r ~

?

". 77

f rn

i :^ i s 3: z a A!

? ^

i O

! S

i

Z s o Jv in i r.

ri'j

:\J -fi b m r~ ro -o j-* ID CD kD U

.!

J'- ..\ f;

r-..

-i

Ministry ofNorthern Developmentand Mines

Ontario

Geophysical-Geological-Geochemical Technical Data Statement

File—

TO BE ATTACHED AS AN APPENDIX TO TECHNICAL REPORTFACTS SHOWN HERE NEED NOT BE REPEATED IN REPORT

TECHNICAL REPORT MUST CONTAIN INTERPRETATION, CONCLUSIONS ETC.

UTEM

Township o

Claim Hold

Survey Con Author of F

Address of

Covering D;

Total Miles

OFFICE USE ONLY

*~j\"r ————— " -~- —————————————————————————————————————. G-1801 Karas Lake r Area

er(s) Nnrpnria Exploration Company, Limited

Noranda Exploration Company, Limited

, t John Gingerich. eporr

Author p,n. pnx ?fi^fi, Thunder Bay, Ontario

ites of Survey(Unecutting to office)

nf T.ine Cut

SPECIAL PROVISIONS DAYS CREDITS REQUESTED r.^K.,. { ,.i Perclaim

ENTER 4 line cuttii survey.ENTER 5 additiona same grid

—Electromagnetic 0 days (includes

•ig) for first Magnetometer ———————— — RafH^m^tr'r

0 days for each -Other 2 8 ' 6 .. ....1 survey using r.™l^;™l

Cffnchpmiral. ,

AIRBORNE CREDITS (Special provision credits do not apply to airborne surveys)

Magnetome

HATR. AT

Res. Geol.

ter F.Wtrnmapnetif- RaHinmprrir(enter days per claim)

iril 7,1989 sir.NATTUH^ — ~5r^^L*1 ^xfjC—- -""^Author of Rc^o/t or Agenf

Qualifications

Previous SurveysFile No. Type Date Claim Holder

MINING CLAIMS TRAVERSED List numerically

KRL. 869362(prefix) (number)

869363

869364

869365

869366

869367

974679

974680

974681

974682

974689

974690

988726

988727

988728

988729

988730

988731

988732

988733

988734 .......,................................988735

T'rf^T A T f**V A T Ik A C? 2*2*TOTAL CLAIMS ——— — ————————

|

M +J

i

S3

837 (85/12)

GEOPHYSICAL TECHNICAL DATA

GROUND SURVEYS — If more than one survey, specify data for each type of survey

Number of Stations_______892________________Number of Readings 2,484 x(10 channels

Station interval 50m725m_____________________Ljne sparing 2 00m________________ Profile tralp various as shown lcm = 16.6, 6.6, 3.3, 133.3 % primaly field___________

Contour interval.

Instrument ——mAccuracy — Scale constant.

Diurnal correction method.O

H Wz,i?sS

a

o

Base Station check-in interval (hours). Base Station location and value ——^

Instrument UTEM 111Vertical and in-line horizontal

- . 57, Primary Field

Coil configuration Coil separation

Accuracy .——.Method: [S Fixed transmitter loop Q Shoot back d) In line d Parallel line^ 30.974 Hz Frequency_

Parameters measured.

Instrument

(specify V.L.F. station)10 times windous Hx, Hz, (.025 - 12.8) milliseconds

Scale constant.

Corrections made.

Base station value and location .

Elevation accuracy-

InstrumentMethod D Time Domain d Frequency Domain

INDUCED POLARIZATIO

Parameters — On time^t - Off time

^ — Dehy timet— t y5 — Integration time*— tM ntt) Power

Electrode array .......

Electrode spacing - ———————————————————Tvoe of elertrnHe _______________

Frequency

Range

SELF POTENTIAL

Instrument___________________________________________ Range.Survey Method —————————-^—^———^.—————-..—-^—-....——....^-^—.—.

Corrections made.

RADIOMETRIC

Instrument____Values measured.

Energy windows (levels)_________,————^^———————————^^———-..^^—.

Height of instrument——————————————-——————^———Background Count.Size of detector^————————-^————^^^————^^————————-——.————

Overburden -———-^————-—-—^—^———^.^^^^———^-.^——-——————^—(type, depth — include outcrop map)

OTHERS (SEISMIC, DRILL WELL LOGGING ETC.)

Type of survey^_^^_____^^_^_______^__

Instrument ,——-———————————-—.——————.^^-^

Accuracy__________________________Parameters measured.

Additional information (for understanding results).

AIRBORNE SURVEYS

Type of survey(s) ————

Instrument(s) ——————(specify for each type of survey)

Accuracy———^—^————————^(specify for each type of survey)

Aircraft used-^^——————^——-.—————^^———-—.^^^^—

Sensor altitude-

Navigation and flight path recovery method.

Aircraft altitude______________________________Line Spacing—— Miles flown over total area__________________________Over claims only.

GEOCHEMICAL SURVEY - PROCEDURE RECORD

Numbers of claims from which samples taken.

Total Number of Samples. Type of Sample.

(Nature of Material)

Average Sample Weight———————

Method of Collection————————

Soil Horizon Sampled. Horizon Development. Sample Depth—————

Terrain—————————

Drainage Development———————————— Estimated Range of Overburden Thickness.

ANALYTICAL METHODSValues expressed in: per cent

p. p. m. p. p. b.

D D D

Cu, Pb,

Others—

Zn, Ni, Co, Ag, Mo, As,-{circle)

Field Analysis (.Extraction Method. Analytical Method- Reagents Used——

Field Laboratory AnalysisNo. -—————————

SAMPLE PREPARATION(Includes drying, screening, crushing, ashing)

Mesh size of fraction used for analysis.———

Extraction Method. Analytical Method. Reagents Used——

Commercial Laboratory (. Name of Laboratory.—. Extraction Method—— Analytical Method —— Reagents Used ————

.tests)

.tests)

-tests)

GeneraL General.

50 052'30"- 50052 3O

50 0 45'—

481595 |43I592

481603 .48160? .461595 -361594 .481593

10 93 000'

52KI4SE6085 2.12343 KARAS LAKE 200507931

REFERENCES

AREAS WITHDRAWN F ROM DISPOSITION

M.R.O.-MINING RIGHTS ONLY

S.R.O. -SURFACE RIGHTS ONLY

M.+ S - MINING AND SURFACE RIGHTS

Order No.

W- t 3-S3LO -3-63 AO/S3

Olie

i'/f. 'S?

F.le

SAND AND GRAVEL

LEGEND

HIGHWAY AND ROUTE No

OTHER ROADS

TRAILS

SURVEYED LINES;TOWNSHIPS, BASE LINES, ETCLOTS, MINING CLAIMS. PARCELS, ETC

UNSURVEYED LINES:LOT LINESPARCEL BOUNDARYMINING CLAIMS ETC.

RAILWAY AND RIGHT OF WAY

UTILITY LINES

NON-PERENNIAL STREAM

FLOODING OR FLOODING RIGHTS

SUBDIVISION OR COMPOSITE PLAN

RESERVATIONS

ORIGINAL SHORELINE

MARSH OR MUSKEG

MINES

TRAVERSE MONUMENT

DISPOSITION OF CROWN LANDS

TYPE OF DOCUMENT SYMBOL

PATENT. SURFACE 8. MINING RIGHTS ___ .............. *

SURFACE RIGHTS ONLY ______ . .—........— ' S

, MINING RIGHTS ONLY ______ . ......... __ . C

LEASE, SURFACE S* MINING RIGHTS— _ ..........M _ . H

" .SURFACE RIGHTS ONLY..... _______ . _ . _ . B

" .MINING RIGHTS ONLY...... ___ . ___ ...,... M. B

LICENCE OF OCCUPATION .. __ . _______ . ______ T

ORDER-IN COUNCIL -™... __ . __ . _____ ........ __ . OC

RESERVATION ____ m. ______ .. _______ ..... __ . (J)

CANCELLED ___ . _______ . _ . _______ .— .. __ ®

SAND i GRAVEL ___ .... ______ .. _________ ...,.

NOTE: MINING R IGHTS I N PARCELS PATENTED PRIOR TO MAY 6, 1*13, VESTED IN ORIGINAL PATENTEE BY THE PUBLIC LANDS ACT, R.S.O 1970, C HAP. 3BO, SEC 63. SUBSEC 1

SCALE: 1 INCH = 40 CHAINS

FEETO 1OOO 2OOO 4OOO fiOOO 8OOO

O ZOO METfiES

1OOO (1 K M!

2OOO12 K M)

AREA

KARAS LAKEM.N.R. ADMINISTRATIVE DISTRICT

RED LAKEMINING DIVISION

RED LAKELAND TITLES/ REGISTRY DIVISION

KENORA/ PATRICIA

Ministryof L andNatural Management

Resources B ranchOntario

FEBRUARY 16, 1983

G- 1801

SURVEYED LINES

2.12343

SURVEY AREA

nora™

KARAS LAKE210

LOOP 3

^'

LOOP'

Se'''-.

c-.

o orn

o o orn33en

52K14SE8a05 2.12343 KARAS LAKE 220

LOOP4 LOOPS

5 . . --MC-

5

-— ———fcc

c A.

e ^ c

1600 NORTH

600 NORTH

ro o o orn i*Cft

o o orn en

BRSE LINE

en roo o

3)en

400 SOUTH

o o om3)en

LEGEND

^f

-V-- interpreted conductor' * superscript ? decay const, (chan, no.)

^- ' interpreted contact

2.12343

DIXIE 3 GRID

UTEM 3 SURVEY

INTERPRETflTION

SCRLE 1:10000 DflTE 9/2/89

LRMONTRGNE GEOPHYSICS LTD

FOR NORflNDfl EXPLORRTION