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Schist Mine (Snake River Mine), Conner Creek District, Baker Co., Oregon, USA

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Latitude & Longitude (WGS84): 44° 35' 22'' North , 117° 8' 48'' West
Latitude & Longitude (decimal): 44.58948,-117.14682
GeoHash:G#: 9rutwm229
Locality type:Mine
Köppen climate type:Csb : Warm-summer Mediterranean climate


REF:Deposit:: BROOKS, H. C., AND RAMP, L., 1968 , GOLD AND SILVER IN OREGON: ODGMI BULL. 61 , P. 132 .
Deposit:: OREGON METAL MINES HANDBOOK, 1939 , ODGMI BULL. 14 - A, P. 23-24 .
Commodities (Major) - Gold
Deposit Type: Vein
Development Status: Past Producer
Deposit Model: 273: Low-sulfide Au-quartz vein
Host Rock: Phyllite, Marble

Regions containing this locality

Rocky Mountains, North America

Mountain Range - 2,037 mineral species & varietal names listed

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.


Mineral List


4 valid minerals.

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!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

'commodity:Gold'
Formula: Au
Reference: From USGS MRDS database
Hematite
Formula: Fe2O3
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Marble'
Reference: From USGS MRDS database
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Phyllite'
Reference: From USGS MRDS database
Pyrite
Formula: FeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'Schist'
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.05aFeS2
Group 4 - Oxides and Hydroxides
'Hematite'4.CB.05Fe2O3
'Quartz'4.DA.05SiO2
Group 9 - Silicates
'Muscovite'9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Marble'-
'Phyllite'-
'Schist'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Rocks, etc.
'Marble'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
'Phyllite'-
'Schist'-

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
OOxygen
O HematiteFe2O3
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
AlAluminium
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
SiSilicon
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
SSulfur
S PyriteFeS2
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
FeIron
Fe HematiteFe2O3
Fe PyriteFeS2

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]

Mesozoic - Paleozoic
66 - 541 Ma



ID: 1464566
Baker Terrane; Burnt River Schist

Age: Phanerozoic (66 - 541 Ma)

Stratigraphic Name: Burnt River Schist

Description: Phyllitic quartzite; metamorphic rocks; sedimentary rocks; phyllite/quartzite; schistose; deformed

Lithology: Major:: {pelitic phyllite, green, gray; veins: milky quartz; staining: iron manganese; mineralogy: chert phyllosilicates; partings: micaceous}; Major:: {phyllitic quartzite, green, gray; veins: milky quartz; staining: iron manganese; mineralogy: chert phyllosilicates; partings: micaceous}; Major:: {quartz phyllite, green, gray; veins: milky quartz; staining: iron manganese; mineralogy: chert phyllosilicates; partings: micaceous}

Reference: R.L. Smith, W.P. Roe (compilers). Oregon Geologic Data Compilation, release 6. State of Oregon Department of Geology and Mineral Industries. [20]

Triassic - Permian
201.3 - 298.9 Ma



ID: 2843001
Sedimentary rocks, partly metamorphosed

Age: Phanerozoic (201.3 - 298.9 Ma)

Stratigraphic Name: Elkhorn Ridge Argillite; Coyote Butte Formation

Description: Poorly bedded argillite, chert, phyllite, phyllitic quartzite, calc-phyllite, impure limestone, and marble. In places rocks are strongly foliated. Sparse fossils (Fusilina, corals, and crinoids) indicate that the unit includes rocks of Leonardian, Ochoan, and Late Triassic age (OR084). Includes Elkhorn Ridge Argillite (OR035), Mesozoic and Paleozoic sedimentary rocks of Brown and Thayer (OR008), and the Permian Coyote Butte Formation (OR085). In Baker County includes "sedimentary and volcanic rocks" (MzPza) of Brooks and others (OR039) and metamorphosed sedimentary and minor volcaniclastic rocks containing mineral assemblages indicative of quartz-albite-muscovite-chlorite subfacies and quartz-albite-epidote-biotite subfacies of the greenschist facies. In Jefferson and Wasco Counties north of Prineville, includes "phyllite and sedimentary rocks " of Swanson (OR031). Includes part of the Burnt River Schist (OR035; OR081) and volcaniclastic facies of several metavolcanic units of Permian and Late Triassic age. Not on State map (OR001) in area of La Grande 100K quadrangle, butmapped in OR291 as Elkhorn Ridge Argillite (Triassic Permian, Pennsylvannian, and Devonian?)

Comments: Burnt River Schist encloses Nelson marble (unit TRPzsn), which was assigned a Late to Middle Triassic age based on conodonts (OR191). The Burnt River Schist is intruded by a 230 Ma (Middle Triassic) diorite (OR190).

Lithology: Major:{argillite,chert,phyllite}, Minor:{limestone,quartzite,marble}

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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