Sections 2 and 3? T10-R5E

A Cu,Au,Ag claim
Structure: Fracture Zone

Tectonics: Cascade Volcanic Arc

Deposit: Vein 18 in.-5.5 ft thick, containing abundant pyrite, follows a n30 W trending fracture zone in granodiorite. Location map available, moen, (1977, p. 20)

Deposit type: Polymetallic veins

Development: No work has been done on property since 1905

Rock formation(s): Spirit Lake Pluton, Main Phase

Regions containing this locality

North America Plate

Tectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Copper

ⓘ Gold

ⓘ Silver

Mineral List

ⓘ Pyrite

1 valid mineral.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

ⓘ Diorite

Detailed Mineral List:

ⓘ Pyrite

Formula: FeS₂

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 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
A_mB_nX_p, with (m+n):p = 1:2
ⓘ	Pyrite	2.12.1.1	FeS₂

List of minerals for each chemical element

S	Sulfur
S	ⓘ Pyrite	FeS₂
Fe	Iron
Fe	ⓘ Pyrite	FeS₂

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

Quaternary 0 - 2.588 Ma ID: 1401021	alluvium Age: Pleistocene (0 - 2.588 Ma) Lithology: Sand,gravel Reference: Washington State Department of Natural Resources, Division of Geology and Earth Resources. Washington Interactive Geologic Map: 1:100,000 scale. Washington Division of Geology and Earth Resources. [19]
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]
Oligocene - Eocene 23.03 - 56 Ma ID: 2824899	Eocene-Oligocene volcanic rocks Age: Paleogene (23.03 - 56 Ma) Stratigraphic Name: Sanpoil Volcanics Description: Predominantly light-green, bedded andesite breccia with interbedded andesite and basalt flows, mudflows, and tuff beds; becomes more tuffaceous near top of unit. Includes tuffaceous and arkosic sandstone, shale, and carbonaceous shale beds in central and southern Cascade Mountians. Rhyodacite and quartz latite flows in northwestern Ferry County. Comments: Percentage of dacite thought to be andesite in the field; predominate over basaltic and rhyolitic rock (Warren, 1941). Large flows in Ferry County mostly dacite and andesite (Stoffel and others, 1991). Original map source: Raines, Gary L., and Johnson, Bruce R., 1996, Digital representation of the Washington state geologic map; a contribution to the Interior Columbia River basin ecosystem management project, U.S. Geological Survey Open-file report 95-0684, 20 p., plus digi Lithology: Major:{andesite,basalt}, Incidental:{arkose, shale, dacite, rhyolite, quartz latite} 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

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)

Huntting, M.T., (1956), Inventory of Washington Minerals - Part Ii, Metallic Minerals: Washington Division of Mines and Geology Bulletin 37, V. 1, P. 78.

Moen, W.S., (1977), St. Helens and Washougal Mining Districts of the Southern Cascades of Washington: Washington Division of Geology and Earth Resources Information Circular 60, P. 17, 20, 24.

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Minnie Lee Claim, Mt St Helens District, Skamania Co., Washington, USAiRegional Level TypesMinnie Lee ClaimClaim Mt St Helens DistrictMining District Skamania Co.County WashingtonState USACountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }