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City Creek, Deadwood, Lawrence Co., South Dakota, USA

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Latitude & Longitude (WGS84): 44° 22' 39'' North , 103° 44' 29'' West
Latitude & Longitude (decimal): 44.37761,-103.74157
GeoHash:G#: 9xyhrq9wq
Locality type:Creek
Köppen climate type:Dfb : Warm-summer humid continental climate


Hill north of Deadwood in schist.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

Copper
Formula: Cu
Reference: SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
Graphite
Formula: C
Reference: SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
Pyrite
Formula: FeS2
Reference: SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"
Tetrahedrite
Formula: Cu6[Cu4(Fe,Zn)2]Sb4S13
Reference: SDSMT Bull 18 Roberts and Rapp "Mineralogy of the Black Hills"

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Copper'1.AA.05Cu
'Graphite'1.CB.05aC
Group 2 - Sulphides and Sulfosalts
'Pyrite'2.EB.05aFeS2
'Tetrahedrite'2.GB.05Cu6[Cu4(Fe,Zn)2]Sb4S13

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Copper1.1.1.3Cu
Semi-metals and non-metals
Graphite1.3.6.2C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 3 - SULFOSALTS
3 <ø < 4
Tetrahedrite3.3.6.1Cu6[Cu4(Fe,Zn)2]Sb4S13

List of minerals for each chemical element

CCarbon
C GraphiteC
SSulfur
S PyriteFeS2
S TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
FeIron
Fe PyriteFeS2
Fe TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
CuCopper
Cu CopperCu
Cu TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
ZnZinc
Zn TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13
SbAntimony
Sb TetrahedriteCu6[Cu4(Fe,Zn)2]Sb4S13

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Holocene - Pleistocene
0 - 2.588 Ma



ID: 2473871
Alluvial deposits

Age: Pleistocene (0 - 2.588 Ma)

Description: Stream-laid deposits of mud, silt, sand, and gravel. Narrow deposits not shown. Maximum thickness 10 m.

Reference: Redden, J.A., E. DeWitt. Maps Showing Geology, Structure, and Geophysics of the Central Black Hills, South Dakota. U.S. Geological Survey Scientific Investigations Map 2777. [73]

Permian - Devonian
251.902 - 419.2 Ma



ID: 3190647
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 419.2 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Paleoproterozoic
1600 - 2500 Ma



ID: 2872176
Metamorphosed Siltstone

Age: Proterozoic (1600 - 2500 Ma)

Description: Medium-gray to dark-greenish-gray phyllite, slate, and biotite schist containing minor chert and amphibolite. Locally intruded by thin metagabbro sills. Thickness 1,000-3,000 ft (305-914 m).

Lithology: Major:{phyllite,slate,biotite schist}, Minor:{chert,amphibolite,metagabbro}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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