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Geological Tour of Southern Oklahoma. Group 4. SOSU Ballroom. Dexter Sandstone Late Cretaceous Sediment is clear but rock gives reddish tint because the cementing agent is Iron Oxide FeO3 Indicated on the map as Kwd - PowerPoint PPT Presentation
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Group 4
Dexter Sandstone Late Cretaceous Sediment is clear but rock gives reddish tint
because the cementing agent is Iron Oxide FeO3
Indicated on the map as KwdSamples found in retaining wall at SOSU and
outcropping on Washington Hill
PawPaw Sandstone & Bennigton Limestone Mid to Late Cretaceous PeriodPawPaw – Yellowish to Brownish red
ferruginous sandstone interbedded with grey to brown, and sandy shale
Bennigton – Blue gray heavy beaded to massive, fine to medium crystalline limestone
Indicated on the map: PawPaw Sandstone as Kbp and Bennington Limestone as Kb
The PawPaw strata-layers were at the bottom of the site with Bennigton Limestone above showing that the sandstone is older than the limestone.
Further studied the Bennington deposit looking for fossils.
McNutt Limestone DepositMid Cretaceous PeriodGrey brown, sandy, fossiliferous limestoneIndicated on the map as KbmDue to the water retaining ability of the
McNutt Limestone, the area is characterized by cattails, equisetum, Mimosa trees, and other semi-aquatic plants.
This is a very thin layer of strata, only 1 to 20 feet thick, but it is very dense giving it good water retaining qualities.
Soper LimestoneMid to early
Cretaceous PeriodGrey fossiliferous
limestoneIndicated on the
map as KbsVery thin layer of
strata, 0 to 2 feet in thickness, observed from bus in yard.
Caddo FormationMid to Early Cretaceous
PeriodCaddo Limestone and
ShaleIndicated on the map as
KcCollected limestone
fossils
Kiamichi FormationEarly CretaceousDark-gray to black, fissile shales,
interbedded in upper parts with thin beds of yellow-gray
Indicated on the map as Kk
Antlers Sandstone• Gathered bag sample of sand• Samples were finished-Screened and
cleaned• Mine supplies Cardinal Glass in Durant• Sand is 65% Silica• Indicated as yellow and Ka on the map
Sulphur FaultGranitic Gneiss-pCgg
on South side of faultCaney Shale-Mc
On North side of fault4 mi North of Coleman on Sandy CreekDrive-By only: No samples
Woodford Shale-MDswMississippi Devonian Time Period 320-408
m/y/aWith phosphate nodules½ Mile west of Hwy 48 on Rock Creek Road note strike and dipStrata has been folded and tilted-not straight
up and down.Important to area with much drilling for gas
and oil.
Wapanucka Formation-Ipw Drive-by: No samples Limestone: Formed on a
reef: Crinoid fossils
Granitic Gneiss-pCggApproximately 300 m/y/oSamples looked like intrusive granite.Seaside Alder growing in area. Only found in
a handful of locations in U.S.Indicated as orange on the map.
Tishomingo Granite-pCti
Drive-by only: No samples
From hwy 337/99, east on W. Blue River Rd, south on Prairie Rd, east on E Harbert Rd, Big Sandy Creek
Cool Creek and McKenzie Hill formation-Ocm Dolomites-Oem- on the (D) Side of the Blue
River FaultOrdivician time period. Approx. 500 m/y/aMg replaces 50% of Ca in the CaCO3
limestone.Samples extremely hard and white in color.
Troy Granite-pCtr
Second youngest granite of the (4) studied today.
Many distinct minerals show in the rocks.
Granodiorite-pCtr
Youngest of the (4) granites studied today.
Tishomingo Granite –pCtiSecond oldest of the (4) granites studied
today.1.37 B/Y/O
Looks pinkish in color.East on Hwy 73 mi to south 2 mi, abandon
quarryRock for Oklahoma state capital building was
quarried from here.
CRETACEOUS
66-144
Antlers Sandstone (Ka)
PENNSYLVANIAN
286-320
MISSISSIPPIAN
320-360360-408
DEVONIANSILURIAN
ORDOVICIAN
CAMBRIAN
408-438438-505505-545545 mil -4.6 bill
PRECAMBRIAN
245-286PERMIAN
144-286 }
}Caney Shale (Mc)Woodford Shale (MDsw)
Dolimite (OCm)Four Granites: Youngest to Oldest Ending at 1.39 Bill: Granodiorite (pCgr)Troy Granite (pCtr)Tishomingo Granite(pCti)Granitic Gneiss (pCgg)
Time of erosion in OK
}
Period Mil/yrs ago
Woodford Shale (MDw)
Black shale w/much chert
Erodes into valleys
Viola Group (Ov) Limestones684 feetForms steep ridgesFolded into an anticline: oldest in middleWoodford-Sylvan-ViolaViola layered with shale.No sample at this spot for the Sylvan
limestone.
1000 ft North of last stop on east side of road, at stock pond entrance for second contact.
Limestone folded with shale.Swirls evident in layers.
McLish Formation (Oml)Basal sandstone-med.-grained quartzose
sandstoneShale-Gray/Green color. Upper limestone (475 feet)
Oil Creek Formation (Ooc)Basal sandstone (32 ft)Shale-Gray/Tan with crystalline limestone (715
ft)
Joins Formation(Oj)Fossiliferous limestoneLight gray
West Spring creek Limestone (Ow)Mostly gray to tan limestoneOolitic limestoneGreat photo site
Radio tower on Hwy 77Cool Creek Formation (Occ)Limestone (1300 ft) grayFine grainedChert mixed in-orange, black, red grey &
white
Butterly Dolomite (Ob)Dolomite-sandy,
pink/gray, medium to course grained, milky quartz contained.
Oldest member of upper Arbuckle group. At Ordovician-Cambrium boundary (297 ft).
Kinblade Formation (Ok)/West Spring Creek Formation
(Ow).Marker 25 feet
below top of the Kinblade limestone.
Lots of twisted rock from faults
North Hwy 77 to crossover then south ¼.
Sylvian Shale (Os)– Mostly olive green to greenish-grey, plastic to fissile clay shale; at the contact with oolitic KEEL LIMESTONE of the HUTTON GROUP- (OSDh)
Home of the Fried Pie!!!
South on I-35 to first turnout, at the entrance ( Marker 29) north end west side
Collins Ranch Conglomerate (IPc)Graben and syncline, conglomerate pebbles
and cobbles ranging in age from West Spring Creek to Reagan Sandstone, deposited into a graben (3000 ft).
Parking area near the Geologic Sign. West Spring Creek Formation (Ow)-U/Collins
Ranch Conglomerate (IPc)-DFault line for the north boundray of the graben
runs north of the road to the sign.
West side of the south end of the turnout;I-35 Marker 28 missingKindblade Formation (Ok)/ West Spring Creek
Formation (Ow)Tectonic breccia in the Kindblade
Cattle pens interchange
Royer Dolomite (Cry)
Only Cambian sampled
Pink to gray
Cody BynumBetty
DeatherageAlice DwyerRon DwyerElissa HefleyMichelle HillAndrea PhillipsChuck RyanJackie RyanSheila SullivanJason WardDanesa Wilson
Dr. AvardDr. EggletonGeorgia DahlgrenWanetta ThompsonSherry JonesDickson SchoolsSOSUState Dept of Education