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Gravel Cap Mine (Oak Springs Mine; Oak Springs Gravel Cap Mine), Northeast Carrizo Mountains Mining District, Carrizo Range, Apache Co., Arizona, USAi
Regional Level Types
Gravel Cap Mine (Oak Springs Mine; Oak Springs Gravel Cap Mine)Mine
Northeast Carrizo Mountains Mining DistrictMining District
Carrizo RangeMountain Range
Apache Co.Mine
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
36° 45' 18'' North , 109° 3' 5'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Beclabito317 (2011)10.0km
Teec Nos Pos730 (2011)18.7km
Shiprock8,295 (2011)32.6km
Red Mesa480 (2011)38.9km
Sanostee371 (2011)40.0km


A former U-V occurrence/mine located in sec. 36, T39N, R31E, G&SRM, near the head of Oak Spring Wash.

Mineralization is carnotite and tyuyamunite in irregular, tabular layers hosted in Late Jurassic claystone, siltstone and sandstone of the Salt Wash Member of the Morrison Formation. The ore body is 1.83 meters thick. Ore is found in clusters, usually associated with carbonaceous detritus. Calcite partly cements most of the sandstone host rock and the ore has a high lime content. The ore zone occurs 54 feet above the lower contact with Bluff sandstone. Channeling and cross-lamination noted. Tyuyamunite disseminated in unevenly bedded, light gray, fine-grained Salt Wash sandstone with blue-green clay seams and carbon matter. The ore zone is 54 feet above the Bluff Sandstone contact and along sandstone-mudstone
contacts, in sedimentary structure and associated with carbon matter. Local rocks include rocks of the Glen Canyon Group.

Workings include underground openings comprised of a 400 foot incline, a 150 foot shaft, drifts, stopes and room and pillar operations.

Production was 5,112 tons @ 0.23% U3O8; 2.28% V2O5 (1949, 1954-1959, 1962, 1966) of ore with grade ranging from 0.1 to 0.3% U3O8 and 2.1 to 3.2% V2O5.

There may be additional scattered resources.

Regions containing this locality

North America PlateTectonic Plate
Rocky Mountains, North AmericaMountain Range
Colorado Plateau, USAPlateau
Navajo Nation Indian Reservation, USAReservation
Hopi-Navajo Indian Reservations, Colorado Plateau, Apache; Navajo and San Juan Cos., Arizona & Utah, USA

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


3 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:

Calcite
Formula: CaCO3
Reference: Stokes, W.L. (1951), Carnotite deposits in the Carrizo Mountains area, USGS Circ. III; Chenoweth, W.L. (1955), Geology and uranium deposits of NW Carrizo area, Four Corners Field Cove, No. 1; Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 145; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 235-248.
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Reference: Stokes, W.L. (1951), Carnotite deposits in the Carrizo Mountains area, USGS Circ. III; Chenoweth, W.L. (1955), Geology and uranium deposits of NW Carrizo area, Four Corners Field Cove, No. 1; Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 145; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 235-248.
Tyuyamunite
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
Reference: Stokes, W.L. (1951), Carnotite deposits in the Carrizo Mountains area, USGS Circ. III; Chenoweth, W.L. (1955), Geology and uranium deposits of NW Carrizo area, Four Corners Field Cove, No. 1; Chenoweth, W.L. (1973), Uranium deposits of NE Arizona, New Mexico Geol. Soc. 24th. Guidebook: 145; Pierce, W.H. (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182: 235-248.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Tyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3

List of minerals arranged by Dana 8th Edition classification

Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Carnotite40.2a.28.1K2(UO2)2(VO4)2 · 3H2O
Tyuyamunite40.2a.26.1Ca(UO2)2(VO4)2 · 5-8H2O

List of minerals for each chemical element

HHydrogen
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
CCarbon
C CalciteCaCO3
OOxygen
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
O CalciteCaCO3
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
CaCalcium
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Ca CalciteCaCO3
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
UUranium
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O

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

Early Jurassic - Late Triassic
174.1 - 237 Ma



ID: 3185972
Mesozoic sedimentary rocks

Age: Mesozoic (174.1 - 237 Ma)

Lithology: Sandstone-conglomerate

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]

Toarcian - Norian
174.1 - 227 Ma



ID: 3018510
Glen Canyon Group

Age: Mesozoic (174.1 - 227 Ma)

Stratigraphic Name: Navajo Sandstone; Kayenta Formation; Moenave Formation

Description: Conspicuous red, cross-bedded Wingate Sandstone and the conspicuously cross-bedded, eolian, red to buff Navajo Sandstone form prominent cliffs in northern Arizona. These two sandstone units are separated by variably colored siltstone, silty sandstone, and sandstone of the Kayenta and Moenave Formations. (180-210 Ma)

Comments: Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.

Lithology: Major:{sandstone}, Minor:{siltstone,sandstone mudstone}

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

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Stokes, W.L. (1951), Carnotite deposits in the Carrizo Mountains area, USGS Circular 111.
Dodd, P. (1952), TM26.
Swanson, M.A., and Hatfield, K.G. (1952), Geology and drilling recommendations, Oak Springs area, Apache County, Arizona, and San Juan County, New Mexico: U.S. Atomic Energy Commission Report RMO-811, 22 p.
Chenoweth, W.L. (1955), The geology and the uranium deposits of the northwest Carrizo area, Apache County, Arizona, in Cooper, J.C., ed., Geology of parts of Paradox, Black Mesa, and San Juan Basins, Four Corners Field Conference: Four Corners Geological Society Guidebook: 177-185.
Peirce, H. Wesley, S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, Arizona Bureau of Mines Bull. 182: 235-248.
Chenoweth, W.L. and Malan, Roger C. (1973), The Uranium deposits of northeastern Arizona, in: Monument Valley (Arizona, Utah and New Mexico), James, H. L.; [ed.], New Mexico Geological Society 24th. Annual Fall Field Conference Guidebook, 232 p. : 139-149.
Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143. RME-2071: 123.
Welty, J.W., Reynolds, S.J., Keith, S.B., Gest, D.E., Trapp, R.A., and DeWitt, Ed (1985) Mine index for metallic mineral districts of Arizona: Arizona Bureau of Geology and Mineral Technology Bulletin 196, 92 p.: 3. (district assignment)
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10026960.
U.S. Atomic Energy Commission, Preliminary Reconnaissance Report CEBR-54 (28).
Shiprock NTMS.
USGS MRDS ID #M001311.
USGS Pastora Peak, Arizona, quadrangle 15 minute topo map.
USGS Redrock Valley, Arizona, quadrangle 15 minute topo map.

USGS MRDS Record:10026960
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