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Leroy No. 1 Mine (MP-552 Mine; Leroy Pettigrew; Pettigrew), Northeast Carrizo Mountains Mining District, Carrizo Range, Apache Co., Arizona, USAi
Regional Level Types
Leroy No. 1 Mine (MP-552 Mine; Leroy Pettigrew; Pettigrew)Mine
Northeast Carrizo Mountains Mining DistrictMining District
Carrizo RangeMountain Range
Apache Co.Mine
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
35° 58' 40'' North , 109° 32' 7'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Nazlini489 (2011)11.9km
Chinle4,518 (2011)19.7km
Del Muerto329 (2011)24.5km
Burnside537 (2011)26.4km
Ganado1,210 (2011)29.6km


A former U-V occurrence/mine located in approximate secs. 29-30, T39N, R31E, G&SRM, 20.9 km (13.0 miles) S of Chinle and 1.4 miles SW of Cottonwood Canyon. T&R values are not presented for this location.

Mineralization is tyuyamunite in irregular tabular layers in Late Jurassic claystone, siltstone and sandstone of the Salt Wash member of the Morrison formation. Ore is found in clusters, usually associated with carbonaceous detritus. Local rocks include rocks of the Chinle Formation.

Workings include a 32° incline at 82 feet long with a 60 foot drift at the bottom.

Production was 25 tons of ore @ 0.19% U3O8; 2.46% V2O5 (1956 & 1961).

Regions containing this locality

North America PlateTectonic Plate
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


1 valid mineral.

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:

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
Tyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O

List of minerals arranged by Dana 8th Edition classification

Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Tyuyamunite40.2a.26.1Ca(UO2)2(VO4)2 · 5-8H2O

List of minerals for each chemical element

HHydrogen
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
OOxygen
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
CaCalcium
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
VVanadium
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
UUranium
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]

Norian - Carnian
208.5 - 237 Ma



ID: 2819208
Chinle Formation

Age: Late Triassic (208.5 - 237 Ma)

Stratigraphic Name: Chinle Formation

Description: Colorful mudstone, such as in the Painted Desert, and less abundant lenses of sandstone and conglomerate, deposited by a large river system. This unit typically is eroded into badlands topography and contains clays that are prone to shrinking and swelling. (210-230 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:{mudstone}, Minor:{sandstone,conglomerate}

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.
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: 117.
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.: 4. (district assignment)
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10026959.
USGS MRDS ID #M001310.
U.S. Department of Energy files.
USGS Pastora Peak, Arizona, quadrangle 15 minute topo map.
Shiprock NTMS.

USGS MRDS Record:10026959
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