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Mallory Gulch, Tinton pegmatite District, Lawrence Co., South Dakota, USA

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Latitude & Longitude (WGS84): 44° 22' 35'' North , 104° 3' 14'' West
Latitude & Longitude (decimal): 44.37651,-104.05414
GeoHash:G#: 9xyh2nqpf
Locality type:Gulch
Köppen climate type:Dfb : Warm-summer humid continental climate


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

Mineral list contains entries from the region specified including sub-localities

1 valid mineral.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
'Gold'1.AA.05Au

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au

List of minerals for each chemical element

AuGold
Au GoldAu

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

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 - Neoarchean
1600 - 2800 Ma



ID: 3267903
Metagrawacke

Age: Precambrian (1600 - 2800 Ma)

Description: An unknown thickness of gray siliceous mica schist and impure quatizite, derived mostly from greywacke, crops out in the Mineral Hill area. The age of this unit may be Early Proterozoic or Late Archean (DeWitt and others, 1989)

Reference: Sutherland, W.M. Geologic Map Of The Sundance 30' X 60' Quadrangle, Crook And Weston Counties, Wyoming, And Lawrence And Pennington Counties, South Dakota. Wyoming State Geological Survey Map Series 78. [171]

Paleoproterozoic - Neoarchean
1600 - 2800 Ma



ID: 2724491
Metabasalt

Age: Precambrian (1600 - 2800 Ma)

Description: Dark-green amphibolite and amphibolite schist. Thickness of individual flows 50-200 ft (15-61 m).

Lithology: Major:{amphibolite,amphibole schist}

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

Localities in this Region
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USA
  • South Dakota

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