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Crown mine (Adelaine Crown mine), Gold Run District, Humboldt Co., Nevada, USA

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Latitude & Longitude (WGS84): 40° 48' 38'' North , 117° 31' 40'' West
Latitude & Longitude (decimal): 40.81079,-117.52778
GeoHash:G#: 9rk2jt6uh
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate


Sec 24 T34N R39E. Gold silver lead copper zinc


Mineral List


1 valid mineral.

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
252.17 - 419.2 Ma



ID: 3186322
Paleozoic sedimentary and volcanic rocks

Age: Paleozoic (252.17 - 419.2 Ma)

Lithology: Carbonate-sandstone-chert

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]

Cambrian
485.4 - 541 Ma



ID: 2762126
Nolan Belt - Phyllite, schist, shale, thin-bedded limestone, chert, and siltstone

Age: Cambrian (485.4 - 541 Ma)

Stratigraphic Name: Bull Run Dolomite; Edgemont Formation; Dunderberg Shale; Swarbrick Formation; Emigrant Formation; Mule Spring Limestone; Preble Formation; Paradise Valley Chert; Schwin Formation

Description: Shale, thin-bedded limestone, phyllite, hornfels, quartzite, chert, and siltstone are typical of this Cambrian unit which exhibits regional metamorphism suggesting significant burial depths have heated and recrystallized many of these rocks. This unit includes rocks mapped informally as the Bull Run Dolomite and Edgemont Formation in northern Elko County by Ehman (1985); the Crane Canyon sequence in the Toiyabe Range; some regions mapped as Dunderberg Shale; and the Swarbrick Formation in northern Nye County, the Emigrant Formation in southern Nye and Esmeralda Counties, the Mule Spring Limestone in Esmeralda County, the Preble Formation in Humboldt and Pershing Counties (Madden-McGuire, 1991), the Paradise Valley Chert in Humboldt County, and the Schwin Formation (Gilluly and Gates, 1965) in the Shoshone Range in Lander County. In most exposures this unit lies transitionally above the Cambrian-Precambrian quartzite unit CZq. In places this unit is transitional into OCtd. This unit is also in structural contact with DCs, DOts, OCc, OCtd, CZq, the Golconda terrane (GC), and the Dutch Flat terrane (DF). In the Osgood Mountains (Boskie and Schweickert, 2001; Crafford and Grauch, 2002; Madden-McGuire and Marsh, 1991), the Bull Run Mountains (Ehman, 1985), the Toiyabe Range (Means, 1962), and the Miller Mountain area (Oldow, 1984b) these rocks exhibit complex polyphase deformation with a strong west-vergent component. At Edna Mountain near Golconda in Humboldt County, these rocks are unconformably overlain by both Pacl and PIPacl of the Siliciclastic overlap assemblage.

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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