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Alfred Miles No. 2 channel (Channel 7), Skeleton Mesa, Nakai Mesa Mining District, Navajo Co., Arizona, USAi
Regional Level Types
Alfred Miles No. 2 channel (Channel 7)Channel
Skeleton MesaMesa
Nakai Mesa Mining DistrictMining District
Navajo Co.County
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
36° 59' 6'' North , 110° 26' 5'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Oljato-Monument Valley674 (2016)17.1km
Oljato-Monument Valley154 (2017)21.7km
Navajo Mountain354 (2011)31.9km
Kayenta5,189 (2011)32.8km
Shonto591 (2011)47.2km
Other/historical names associated with this locality:
Alfred Miles No. 2 paleochannel


An U-Cu occurrence located 12.6 km (7.8 miles) SSW of Skeleton Mesa (coordinates of record).

Mineralization is an U-Cu deposit in a paleochannel with an E-W trend; 900 feet wide and 50 feet deep. May be a part of channel No. 6. Pieces of wood partly replaced by secondary copper minerals (azurite, malachite) have been found in basal sediments of the Alfred Miles channels Nos. 1 and 2.

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


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:

Azurite
Formula: Cu3(CO3)2(OH)2
Description: Replacing wood.
Reference: Witkind, Irving J. & Thaden (1963), Geology and U-V deposits of the Monument Valley area Apache & Navajo Counties, Arizona: 72 & 74 (Table 1).
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Reference: Witkind, Irving J. & Thaden (1963), Geology and U-V deposits of the Monument Valley area Apache & Navajo Counties, Arizona: 72 & 74 (Table 1).
Malachite
Formula: Cu2(CO3)(OH)2
Description: Occurs in a bleached zone replacing wood.
Reference: ‡Ref.: Witkind, Irving J. & Thaden (1963), Geology and U-V deposits of the Monument Valley area Apache & Navajo Cos., AZ: 72 (Table 1) & 74 (Table 1).
'Petrified Wood'
Reference: Witkind, Irving J. & Thaden (1963), Geology and U-V deposits of the Monument Valley area Apache & Navajo Counties, Arizona: 72 & 74 (Table 1).
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: Witkind, Irving J. & Thaden (1963), Geology and U-V deposits of the Monument Valley area Apache & Navajo Counties, Arizona: 72 & 74 (Table 1).

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 8 - Phosphates, Arsenates and Vanadates
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Unclassified Minerals, Rocks, etc.
'Petrified Wood'-

List of minerals arranged by Dana 8th Edition classification

Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Carnotite40.2a.28.1K2(UO2)2(VO4)2 · 3H2O
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
Unclassified Minerals, Mixtures, etc.
'Petrified Wood'-

List of minerals for each chemical element

HHydrogen
H MalachiteCu2(CO3)(OH)2
H AzuriteCu3(CO3)2(OH)2
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H TorberniteCu(UO2)2(PO4)2 · 12H2O
CCarbon
C MalachiteCu2(CO3)(OH)2
C AzuriteCu3(CO3)2(OH)2
OOxygen
O MalachiteCu2(CO3)(OH)2
O AzuriteCu3(CO3)2(OH)2
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O TorberniteCu(UO2)2(PO4)2 · 12H2O
PPhosphorus
P TorberniteCu(UO2)2(PO4)2 · 12H2O
KPotassium
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu AzuriteCu3(CO3)2(OH)2
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
UUranium
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U TorberniteCu(UO2)2(PO4)2 · 12H2O

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

Permian
251.902 - 298.9 Ma



ID: 3188526
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 298.9 Ma)

Lithology: Sedimentary rocks

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]

Kungurian - Moscovian
272.95 - 315.2 Ma



ID: 2778830
Permian to Pennsylvanian sedimentary rocks

Age: Paleozoic (272.95 - 315.2 Ma)

Stratigraphic Name: Hermit Formation; Supai Group; Schnebly Hill Formation; Naco Group

Description: Interbedded sandstone, shale, and limestone usually characterized by ledgy outcrops. Orange to reddish sandstone forms cliffs near Sedona. This unit includes Supai Group and Hermit Shale in northern Arizona and Naco Group in southern Arizona. It was deposited in coastal-plain to shallow-marine settings during time of variable and changing sea level. Rocks of this map unit in southern Arizona may be in part equivalent to Permian rocks of map unit P in central and northern Arizona. (280-310 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,shale,limestone}

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

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Witkind, Irving J. & Thaden (1963), Geology and U-V deposits of the Monument Valley area Apache & Navajo Counties, Arizona: 72 & 74 (Table 1).


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