Sayda

Adorf

Bergen

Zschopau

Auerbach

Oelsnitz

Freiberg

Hainichen

Kirchberg

Altenberg

Stollberg

Schneeberg

Marienberg

Schwarzenberg

Dippoldiswalde

Annaberg-Buchholz

310000

310000

350000

350000

390000

390000

430000

430000

55800

00

55800

00

56200

00

56200

00

56600

00

56600

00

Antimony in stream sediments

Localities

River

Border D / CZ

Major fault

Antimony

[mg / kg]

< 0.25

0.25 - 0.40

0.40 - 0.63

0.63 - 1.0

1.0 - 1.6

1.6 - 2.5

2.5 - 4.0

4.0 - 6.3

6.3 - 10

> 10

Number of samples: 4732Min: 0.05 mg/kgMax: 74.2 mg/kgArithmetic Mean: 1.6 mg/kgGeometric Mean: 0.9 mg/kgMedian: 0.9 mg/kg

Text

Antimony (Sb) concentrations in stream sediments

show a slightly right skewed log-distribution. The

arithmetic average is 1.6 mg/kg, the median value

0.9 mg/kg. The overall maximum concentration

amounts to 74 mg/kg, the minimum to 0.05 mg/kg. A

2 km wide area with concentrations up to

Sb > 10 mg/kg is located SE of Freiberg, coinciding

with elevated Pb, Zn and Ag levels. The latter area

merges into a zone of Sb > 4 mg/kg including the

entire Freiberg mining district with an N-S-extension

of approx. 17 km. Furthermore, a NE-SW striking

zone with similar Sb levels occurs close to

Hainichen. Here the Sb enrichment can be partially

assigned to known Sb-mineralisation additionally

coinciding with strongly elevated Hg. Areas of

elevated Sb levels in the central Erzgebirge

accompany the known Sb occurrence of

Hormersdorf SE of Stollberg. In the western part of

the study area Sb levels up to > 10 mg/kg occur at a

12 km NE elongated area NW of the Kirchberg

Granite in faulted Ordovician and Devonian

metapelites.

Additionally, the latter area is characterised by

elevated Au and Hg levels and hosts the Neumark

U deposit. Areas with Sb > 2.5 mg/kg include a

30 km zone extending from the Silurian Lößnitz-

Zwönitz syncline up to the Gera-Jachymov fault

zone near Schneeberg and Schwarzenberg. Areas

with lower levels (Sb > 1.0 mg/kg) also extend far

beyond the Hormersdorf Sb occurrence up to areas

within gneisses and phyllites near to the fluorite-

baryte deposits of Augustusburg and Grünberg.

Further spots with Sb > 2.5 mg/kg occur arranged in

a half-circle around the Klingenthal-Kraslice Cu

deposit. The northernmost location is related to the

Sn greisen deposits of Gottesberg-Mühlleithen,

whereas the western locations coincide with

Ordovician metapelites where elevated Mo, Hg, Cd,

As and Se were detected. The areas with the lowest

concentrations (Sb < 0.4 mg/kg) are predominantly

bound to the granite plutons of Eibenstock and

Bergen, to Cambro-Ordovician metapelites south of

Adorf and to Neoproterozoic gneisses east and

northeast of Marienberg.

1 – Altenberg-Teplice-Caldera (incl. 1a - Schellerhau granite), 2 – Bergen Pluton 3 – Eibenstock Pluton, 4 – Eichigt Pluton (concealed), 5 – Fichtelgebirge Pluton, 6 – Flöha Fault Zone, 7 – Frankenberg Crystalline Complex, 8 – Markersbach Pluton, 9 – Gera-Jachymov Fault Zone, 10 – Kirchberg Pluton, 11 – Niederbobritzsch Pluton, 12 – Tharandt Volcanic Complex, 13 – Lößnitz-Zwönitz Syncline

Main Geological Units

Cretaceous and Tertiary rocks

Permo-Carboniferous sediments

Upper Carboniferous igneous rocks

Devonian sediments and volcanics

Ordovician metapelites, metacarbonates and gneisses

Ordovician to Silurian pelites and psammites

Cambrian to Ordovician metasediments

Neoproterozoic and Lower Paleozoic gneisses

10

392

4

5

6

11

12

81

13

7

1a

k1 - Lengefeld, k2 - Marienberg - Wolkenstein, k3 - Pobershau, l1 - Seiffen, l2 - St. Katharinaberg,m1 - Geyer, m2 - Hormersdorf, m3 - Thum, m4 - Ehrenfriedersdorf, m5 - Annaberg-B., n1 - Lauter-Elterlein, n2 - Westerzgebirge complex deposit, n3 - Niederschlag-Bärenstein, o1 - Aue-Bärengrund,o2 - Bad Schlema-Alberoda, o3 - Schneeberg, p - Neumark (U), q - Pechtelsgrün, r1 - Sn Deposits ofthe Eibenstock Granite, r2 - Gottesberg-Mühlleiten, s - Johanngeorgenstadt, t - Brunndöbra &Schneckenstein, u - Klingenthal-Kraslice, v1 - Zobes, v2 - Bergen, w - Tirpersdorf, x - Oelsnitz,y - Schönbrunn, z - Wiedersberg

a1 - Freiberg north district, a2 - Felsite zone, a3 - Langenstriegis,a4 - Oberschöna, a5 - Freiberg central district & Brand-E., a6 - Mulden-hütten, a7 - Halsbrücke, b - Mohorn, c - Edle Krone - Klingenberg,d - Dippoldiswalde, e - Schlottwitz, f - Berggießhübel, g - Sadisdorf,h - Frauenstein, i1 - Altenberg, i2 - Zinnwald-Cinovec, i3 - Moldava,i4 - Rehefeld, j1 - Grünberg, j2 - Augustusburg, j3 - Zschopau

Project partners:

Project supported by:

Analysed fraction: < 0.18 mmAnalysed by: ALS MineralsAnalytical method: ME-MS41 (Ultra Trace Aqua Regia ICP-MS)

Geochemical Atlas – Erzgebirge and Vogtland

Project: Prediction of Strategic High Technology Metals in the Erzgebirge (WISTAMERZ)

FKZ: 033R133A

- Antimony in stream sediments -

Date: May 2019

d

g fe

c

b

i1j3

a1

p

q

r1 s

tu

v1

wx

yz

a2

a3a4

a5

a6

a7

h

i2i3

i4

j2 j1

k1

k2

k3

l1

l2

m1

m2 m4

m5n1

n2

n3

o1

o2

o3

r2

v2

m3

Cartography & Layout St. Schaefer, C. Repper

Map compilation A. Barth, St. Schaefer, E. Kallmeier, P. Bock, C. Legler

Map projection Transverse mercator (UTM Zone 33N)

Spheroid: GRS 1989 Datum: D_ETRS_1989

Reference system

ISBN 978-3-948423-23-0

¯

0 10 205Kilometres

Scale: 1 : 400,000

Important Mineral Occurrences

Sn, ± Zn, ± W, ± F, ± Cu, ± In, ± Au

W, ± Mo

Sn, ± W, ± Cu, ± F, ± Li, ± Rb, ± Bi

Ag, Pb, Zn, ± Cu, ± Sn, ± In

Sb, Ag, ± Au, ± Pb, ± Zn, ± Mo

Bi, Co, Ni, U, ± Ag

Cu, ± Co, ± Au, ± Sb

Baryte, Fluorite