Winslow Nos. 6 & 7 (Winslow group), Winslow, Winslow Mining District, Navajo Co., Arizona, USAi
|Regional Level Types|
|Winslow Nos. 6 & 7 (Winslow group)||Group of Claims|
|Winslow||- not defined -|
|Winslow Mining District||Mining District|
An U occurrence/group of claims located in the N-central sec. 32, T20N, R17E, G&SRM, on the edge of Ives Mesa. The geographic coordinates presented are approximate to the center of sec. 32. This locality is not listed in the USGS MRDS database.
Mineralization is an U deposit that occurs in 2 sandstone lenses or paleochannels in the Petrified Forest Member of the Chinle Formation. The ore body is at a depth of 50 feet and averages 4-5 feet thick. Lenses are separated by 20 feet stratigraphically, with both trending ENE, and are superimposed.
Workings include underground openings comprised of 1 100 foot adit from the rim towards the ore body. 64 holes were drilled in 1955 for 8,200 feet.
Production was 49 tons of ore @ 0.03% U3O8; 0.17% V2O5 (1954) (reported from the Winslow No. 7).
Regions containing this locality
|North America Plate||Tectonic Plate|
|Colorado Plateau, USA||Plateau|
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Commodity ListThis is a list of exploitable or exploited mineral commodities recorded at this locality.
No minerals currently recorded for this locality.
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
0 - 0.0117 Ma
|Eolian sand-sheet deposits|
Age: Anthropocene (0 - 0.0117 Ma)
Description: Extensive sand-sheet deposits northeast and east of Little Colorado River Valley, especially in and along large tributary washes and over gently sloping terrain below Newberry, Ives, and Marcou Mesas. Forms thin sand-sheet deposits on alluvial fan slopes of various ages and on “Dilkon deposits” (QTdi) slopes in Hopi Buttes area. Commonly intertongues with surficial deposits (Qae, Qdp, Qdb); contacts are gradational in both lateral and vertical sense. Supports moderate growths of grass and small high-desert shrubs that help stabilize or trap accumulating deposits. Thickness, 0.3 to 4.5 m (1 to 15 ft)
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. 
|Gelasian - Burdigalian|
1.806 - 20.44 Ma
|Pliocene to middle Miocene deposits|
Age: Cenozoic (1.806 - 20.44 Ma)
Description: Moderately to strongly consolidated conglomerate and sandstone deposited in basins during and after late Tertiary faulting. Includes lesser amounts of mudstone, siltstone, limestone, and gypsum. These deposits are generally light gray or tan. They commonly form high rounded hills and ridges in modern basins, and locally form prominent bluffs. Deposits of this unit are widely exposed in the dissected basins of southeastern and central Arizona. (2-16 Ma)
Comments: In dissected basins of southeast and central Arizona 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. 
|Early Jurassic - Late Triassic|
174.1 - 237 Ma
|Mesozoic sedimentary rocks|
Age: Mesozoic (174.1 - 237 Ma)
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.