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48-55 Mine (Garnet Mine; Vesper Peak Mine), Vesper Peak, Sultan Basin, Sultan District, Snohomish Co., Washington, USA

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Latitude & Longitude (WGS84): 48° 1' North , 121° 31' West
Latitude & Longitude (decimal): 48.01667,-121.51667
Köppen climate type:Cfb : Temperate oceanic climate


Center of Section 9, T29N-R10E

A large skarn area, located 300' southwest of the Vesper Peak Ridge Crest.

It worked limestone lenses altered by contact metamorphism forming bodies up to 70' long by 50' wide. Developments include shallow opencuts.

Mineral List


19 valid minerals.

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

Middle Miocene - Early Paleocene
11.62 - 66 Ma



ID: 2726176
Tertiary granitic rocks

Age: Cenozoic (11.62 - 66 Ma)

Stratigraphic Name: Chilliwack Group; Silver Star Granodiorite; Snoqualmie Granodiorite

Description: Granite, quartz monzonite, quartz diorite, granodiorite, and trondhjemite. Includes dacite porphyry and granite breccia near Bumping Lake, Yakima County.

Comments: Chilliwack granodiorite and quartz diorite; Golden Horn batholith; Silver Star granodiorite; Snoqualmie granodiorite; Index batholith; Grotto batholith (possibly the same as Snoqualmie); Oval Peak batholith; Fawn Peak stock; Pasayten stock-dike; Monument Peak stock; Castle Peak stock; Lost Peak stock; The intrusive volcanic rocks near Bumping Lake include hypabyssal dacite, rhyolite, and andesite (Walsh and others, 1987).

Lithology: Major:{granodiorite,granite}, Minor:{quartz diorite,quartz monzonite}, Incidental:{diorite, tonalite, hypabyssal dacite, hypabyssal andesite, hypabyssal rhyolite, gabbro}

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]

Oligocene
23.03 - 33.9 Ma



ID: 1430685
Squire Creek stock on Vesper Peak

Age: Oligocene (23.03 - 33.9 Ma)

Lithology: Tonalite

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]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License



This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

- Huntting, M. (1956): Inventory of Washington Minerals, Part II, Metallic Minerals, Vol. 1, p.83
- Cannon, B. (1975): Minerals of Washington, p.52, 54, 99, 105, 108, 113, 137, 146, 152
- Rocks & Minerals (1991) 66: 478-484.

Mineral and/or Locality  
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