Bidahochi Butte occurrence (Bidahochi Butte deposit), Bidahochi, Hopi Buttes Mining District, Navajo Co., Arizona, USAi
|Regional Level Types|
|Bidahochi Butte occurrence (Bidahochi Butte deposit)||Occurrence|
|Hopi Buttes Mining District||Mining District|
An U-Pumice occurrence located in the SE¼SE¼ sec. 12, T23N, R21E, G&SRM, 0.9 km (0.6 mile) SSE of Bidahochi (town), 0.2 miles SE of Bidahochi Trading Post.
Mineralization is a disseminated ore body hosted in Pliocene shale, siltstone and limestone of the Upper Member Of Tertiary Bidahochi Formation. Extremely finely disseminated uranium in limestone and laminated siltstone and shale of the Bidahochi Formation associated with a diatreme feature also containing bedded tuff, evaporites and chert. Local rocks include rocks of the Glen Canyon Group. The Arizona Department of Mineral Resources locates volcanic ash in sec. 11, T23N, R22E.
Analysis test results: 0.01% to 0.2% U3O8.
Regions containing this locality
|North America Plate||Tectonic Plate|
|Colorado Plateau, USA||Plateau|
|Navajo Nation Indian Reservation, USA||Reservation|
|Hopi-Navajo Indian Reservations, Colorado Plateau, Apache; Navajo and San Juan Cos., Arizona & Utah, USA|
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Rock Types Recorded
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Entries shown in red are rocks recorded for this region.
Detailed Mineral List:
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List of minerals arranged by Strunz 10th Edition classification
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List of minerals arranged by Dana 8th Edition classification
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List of minerals for each chemical element
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
2.588 - 5.333 Ma
|Cenozoic sedimentary rocks|
Age: Pliocene (2.588 - 5.333 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. 
5.333 - 23.03 Ma
|Mixed monchiquite and basanite flows and tuff deposits, undivided|
Age: Miocene (5.333 - 23.03 Ma)
Description: Gray or brown monchiquite and basanite flows interbedded with mafic tuff-and-ash deposits. Contains abundant phenocrysts and glomerocrysts of clinopyroxene, olivine, and phlogopite. Includes several mixed flows and pyroclastic deposits from multiple volcanic eruptions in north half of Hopi Buttes area (sheet 2). Thickness, 9 to 146+ m (30 to 480+ ft)
Comments: Volcanic rocks of Hopi Buttes (Tsezhin Bii) Volcanic Field (Miocene)—Unit was originally defined as the middle volcanic member of the Bidahochi Formation (Repenning and Irwin, 1954; Shoemaker and others, 1957, 1962); however, we herein redefine them as the volcanic rocks of Hopi Buttes Volcanic Field because it forms a mappable sequence of volcanic rocks that intertongues with deposits of the lower Bidahochi Formation (Tbl) of Miocene age near White Cone Peak northeast of quadrangle and in northeast quarter of quadrangle (sheet 2)
Reference: Billingsley, G.H., D. Block, and M. Hiza Redsteer. Geologic map of the Winslow 30’ × 60’ quadrangle, Coconino and Navajo Counties, northern Arizona. U.S. Geological Survey Scientific Investigations Map 3247. 
|Toarcian - Norian|
174.1 - 227 Ma
|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.
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.