Popcorn Prospect (Wrangell), Mountain Wells District, Churchill Co., Nevada, USAi
Regional Level Types | |
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Popcorn Prospect (Wrangell) | - not defined - |
Mountain Wells District | Mining District |
Churchill Co. | County |
Nevada | State |
USA | Country |
Latitude & Longitude (WGS84): | 39° 27' 5'' North , 118° 18' 30'' West | |||||||||
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Latitude & Longitude (decimal): | 39.45158,-118.30846 | |||||||||
GeoHash: | G#: 9r5b7vfqj | |||||||||
USGS MRDS Record: | 10047674 | |||||||||
Köppen climate type: | BWk : Cold desert climate | |||||||||
Nearest Settlements: |
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Deposit: Scheelite occurs in veins, veinlets, fracture coatings and in crystal clusters with calcite in carbonaceous sedimentary rocks. Although bleached fracture selvages containing epidote are present locally near the contact zones, much of the scheelite is associated with essentially unaltered black limestone.
Deposit type: W veins
Regions containing this locality
North America Plate | Tectonic Plate |
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
1 valid mineral.
Rock Types Recorded
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
ⓘ Scheelite Formula: Ca(WO4) Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
List of minerals arranged by Strunz 10th Edition classification
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
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ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals arranged by Dana 8th Edition classification
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES | |||
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AXO4 | |||
ⓘ | Scheelite | 48.1.2.1 | Ca(WO4) |
List of minerals for each chemical element
O | Oxygen | |
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O | ⓘ Scheelite | Ca(WO4) |
Ca | Calcium | |
Ca | ⓘ Scheelite | Ca(WO4) |
W | Tungsten | |
W | ⓘ Scheelite | Ca(WO4) |
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
Neogene 2.588 - 23.03 Ma ID: 3186305 | Cenozoic volcanic rocks Age: Neogene (2.588 - 23.03 Ma) Stratigraphic Name: Columbia River Basalt Comments: Columbia Plateau Lithology: Flood basalt(s); mafic volcanic rocks; basalt 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] |
Middle Jurassic - Norian 163.5 - 227 Ma ID: 2856465 | Jungo Terrane - Turbiditic, fine-grained, terrigenous clastic rocks Age: Mesozoic (163.5 - 227 Ma) Stratigraphic Name: Grass Valley Formation; Happy Creek Volcanic Complex; Osobb Formation; Winnemucca Formation; Raspberry Formation Description: The Jungo terrane, also called the Lovelock assemblage or Fencemaker allochthon (Oldow, Satterfield, and Silberling, 1993), consists of complexly deformed, thick basinal, turbiditic, fine-grained, terrigenous clastic rocks, mainly Norian, but also as young as Pliensbachian (Late Triassic and Early Jurassic) age. It crops out in southern Washoe, Churchill, Humboldt, and Pershing Counties. These rocks represent the basinal facies component of the Auld Lang Syne Group (Burke and Silberling, 1973; Lupe and Silberling, 1985). The Jungo terrane has no known basement and is structurally detached from coeval shelf facies (Silberling, Jones, and others, 1992). It is locally overlain unconformably by Middle or Upper Jurassic peritidal sedimentary rocks (Jcg) intruded by a gabbroic igneous assemblage (Silberling, 1991). Rocks included with the Jungo terrane were originally mapped as the Grass Valley Formation of the Auld Lang Syne Group in Humboldt and Pershing Counties; some rocks were mapped as the Happy Creek Volcanic “series” (now the Happy Creek Volcanic Complex) in Humboldt County, the Nightingale sequence in southern Washoe County, the Osobb Formation of the Auld Lang Syne Group in Churchill County, and the Winnemucca and Raspberry Formations of the Auld Lang Syne Group (Compton, 1960) in the Santa Rosa Range in Humboldt County. Comments: Original map source: Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000. Lithology: Major:{siliciclastic} 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