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Eagle Vein (Last Chance; Part of The Imperial-Eagle), Cable Cove District, Baker Co., Oregon, USA

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Latitude & Longitude (WGS84): 44° 51' 51'' North , 118° 16' 13'' West
Latitude & Longitude (decimal): 44.86417,-118.27028
GeoHash:G#: 9rgzhxq0w
Locality type:Vein
Köppen climate type:Dsb : Warm, dry-summer continental climate


REF:Deposit:: FERNS, M.L. AND OTHERS, 1982, MAP OF THE GEOLOGY AND MINERAL DEPOSITS OF THE MT. IRELAND QUADRANGLE, BAKER AND GRANT COUNTIES, OREGON; ODGMI MAP (IN PREPARATION)
Deposit:: PARDEE, J.T. AND HEWITT, D.F., 1914, GEOLOGY AND MINERAL RESOURCES OF T
OR. DEPT. GEOL. AND MIN. INDUST., 1939, BULLETIN 14-B, P. 16
Commodities (Major) - Silver, Gold; (Trace) - Arsenic, Zinc, Copper, Lead
Development Status: Producer
Host Rock: Granodiorite

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


6 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:

Chalcopyrite
Formula: CuFeS2
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Galena
Formula: PbS
Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
'commodity:Gold'
Formula: Au
Reference: From USGS MRDS database
'Granodiorite'
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.
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.
'commodity:Silver'
Formula: Ag
Reference: From USGS MRDS database
Sphalerite
Formula: ZnS
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
'Chalcopyrite'2.CB.10aCuFeS2
'Galena'2.CD.10PbS
'Pyrite'2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
'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.
'Granodiorite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
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.
'Granodiorite'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2

List of minerals for each chemical element

HHydrogen
H MuscoviteKAl2(AlSi3O10)(OH)2
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
OOxygen
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 ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
KPotassium
K MuscoviteKAl2(AlSi3O10)(OH)2
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
PbLead
Pb GalenaPbS

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

Cretaceous - Jurassic
66 - 201.3 Ma



ID: 1459882
Nevadan Intrusives; Bald Mountain Batholith

Age: Mesozoic (66 - 201.3 Ma)

Description: Bald Mountain Batholith; plutonic rocks; intermediate composition lithologies; granodiorite/tonalite

Lithology: Major:: {granodiorite}; Major:: {tonalite} Minor:: {norite}; Minor:: {quartz monzonite}

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

Maastrichtian - Rhaetian
66 - 208.5 Ma



ID: 3024031
Intrusive rocks

Age: Mesozoic (66 - 208.5 Ma)

Description: Hornblende and biotite quartz diorite (tonalite), trondhjemite, granodiorite, and small amounts of norite, in batholithic masses and large dikelike bodies. Includes Bald Mountain Tonalite and Anthony Lake Granodiorite of Taubeneck (1957), tonalite and trondhjemite of Wallowa batholith and Cornucopia stock (Taubeneck, 1964; Nolf, 1966), quartz diorite intrusion in the Snake River area (Morrison, 1963), quartz diorite and minor other intrusive rocks in the Caviness quadrangle (Wolff, 1965), quartz diorite northeast of John Day and southeast of Ironside Mountain (Thayer and Brown, 1964), quartz diorite in the Sparta and Durkee quadrangles (Prostka, 1962; 1967), and granodiorite and related rocks of the Pueblo Mountains (Roback and others, 1987). Rubidium-strontium and potassium-argon ages indicate an age range from about 94 to 160 Ma (Taubeneck, 1963; Thayer and Brown, 1964; Armstrong and others, 1976)

Comments: In OR291, unit includes three composite intrusions consisting of smaller individual intrusions that are chemically and petrographically distinct. The largest composite intrusion is the Bald Mountain batholith, which consists of the Elkhorn pluton (Lower Cretaceous and Upper Jurassic); Lower Cretaceous(?) granitic intrusions (granite of Clear Creek, granite of Anthony Butte, leucogranite of Dutch Creek, granite of Isham Spring); granodiorite intrusions (granodiorite of Indiana Mine Road, granodiorite of Beaver Meadow, tonalite of North Fork of Anthony Creek, granodiorite in Guard Station inlier; Upper Jurassic(?)-Lower Cretaceous), including quartz diorites (Upper Jurassic-Lower Cretaceous?; quartz diorite of Wolf Creek, quartz diorite of Guard Station inlier); lamprophyre (Lower Cretaceous or Upper Jurassic); and quartz gabbro (Lower Cretaceous or Upper Jurassic). The other composite intrusions are the North Fork and the Carney Butte stocks. The North Fork stock consists of the North Fork tonalite (Lower Cretaceous and Upper Jurassic), lamprophyre (Lower Cretaceous or Upper Jurassic) and granite (Lower Cretaceous or Upper Jurassic). The Carney butte stock consists of the granodiorite of Table Mountain (Upper Jurassic or Lower Cretaceous?), trondhjemite of Johnson Creek (Upper Jurassic or Lower Cretaceous), tonalite of Granite Meadows (Upper Jurassic or Lower Cretaceous?), diorite of Alexander Creek (Upper Jurassic?), gabbronorite of Carney Butte (Upper Jurassic?), and gabbronorite of Ridenor Canyon (Upper Jurassic?). Cretaceous and Jurassic diorite and gabbro intrusions are mapped as far north as the Umatilla River Basin (OR292) and include the Carney Butte stock

Lithology: Major:{quartz diorite,granitic,granodiorite}, Minor:{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]

Jurassic - Triassic
145 - 251.902 Ma



ID: 3192126
Mesozoic sedimentary and volcanic rocks

Age: Mesozoic (145 - 251.902 Ma)

Comments: Blue Mountains

Lithology: Conglomerate,limestone,sandstone,shale,chert

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]

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


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