Van Stone Mine, Onion Creek, Stevens Co., Washington, USA
|Latitude & Longitude (WGS84):||48° 45' 38'' North , 117° 45' 23'' West|
|Latitude & Longitude (decimal):||48.760555267333984, -117.75638580322266|
This mine is located on the headwaters of Onion Creek. It produced ore in 1930, 1937, 1942, and 1952-1955. The geology is mineralization in the middle dolomite unit of the Metaline Formation.
Ref:Metal Mines of Washington-Preliminary Report; Derkey, Joseph, Lasmanis
11 valid minerals.
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
|Eocene - Precambrian|
33.9 - 4000 Ma
|Mesozoic granitic rocks, undivided|
Description: Granite, quartz monzonite, quartz diorite, granodiorite, and trondhjemite. Includes diorite in southeastern Washington; diorite and gabbro near Concunully in Okanogan County; gneiss, schist, and migmatites in areas of Chelan, Colville, and Okanogan batholiths. Includes high-grade metamorphic rocks of Precambrian age in Spokane area.
Comments: Colville batholith; Kaniksu Batholith (including Spirit pluton); Loon Lake granite; Mount Stuart granodiorite; Osoyoos granodiorite; Similkameen batholith; Whisky Mountain granodiorite; Cooper Mtn Batholith; Okanogan Batholith; Includes significant portions, primarily orthogneiss, of the Kettle Metamorphic Core Complex and the Okanogan Metamorphic Core Complex, as well as orthogneiss in the Okanogan Batholith area. Metamorphic rocks near Spokane include quartzite and possibly meta-argillite and hornfels of Belt Supergroup (Stoffel and others, 1991). Note that Stoffel and others, 1991, report that while the term "Loon Lake Granite" was once widely used, it has since been abandoned.
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. 
|Ordovician - Cambrian|
443.8 - 541 Ma
Age: Paleozoic (443.8 - 541 Ma)
Reference: Zientek, M.L., P.D. Derkey, R.J. Miller, J.D. Causet et al. Spatial Databases for the Geology of the Northern Rocky Mountains - Idaho, Montana, and Washington. U.S. Geological Survey Open-File Report 2005-1235 Version 1.0. 
|Cambrian - Ordovician|
|Metaline Formation, bedded dolomite of|