Physical stratigraphy and mineral resources of Permian rocks in western Wyoming

Abstract

Areal variation of lithic character._-___-__-___ 64 Phosphoria formation.__________________________ 74 Lower chert member. _______________________ 74 Meade Peak phosphatic shale member.________ 74 Petrography-__________________________ 75 Areal variation of thickness-_____________ 82 Areal variation of lithic types-___________ 82 Vertical variation of lithic types-_________ 83 Correlation of beds within the Meade Peak phosphatic shale member-____-____-_-. 83 Stratigraphic relations__________________ 84 Rex chert member._________________________ 84 Lithic character._______________________ 84 Areal variation of thickness-__-_-_____--. 86 Areal and vertical variation of lithic character. _________________________________ 86 Stratigraphic relations.__.-__-____-_____-86 Retort phosphatic shale member.__-_____-_.__ 86 Lithic character._______________________ 87 Areal variation of thickness-_____________ Page TABLE 1. Location, name, lot number, and source of stratigraphic sections used in this report_______________________ 2. Lithologic constitution in percent and total thickness of rocks of the geosyncline and craton in western Wyoming and adjacent areas-__ _ _ _ _ _ _.________________ _ _ ________________________________________________ 3. Optical properties of several apatites from the Permian rooks of western Wyoming._____._________________ 4. Size parameters of phosphorites ____________________________________________________________________ ,",. Analysis of variance of Po()5 values of four sets of spheroidal phosphorites subdivided by maximum spheroid size__________ ________________________________________________________________________________ 6. Distribution of minor minerals in rock cycle. ____________________________________________________ 7-11. Thickness and grade of phosphatic and uraniferous beds: 7. Used in calculations of phosphate reserves and uranium resources in the Gros Ventre Range, Wyo_____ 8. Of the Retort phosphatic shale tongue used in calculations of phosphate reserves and uranium resources in the Wind River Range, Wyo__-________--_________-__----_-__---_-___----______-___________ 9. Of the Meade Peak phosphatic shale tongue used in calculations of phosphate reserves and uranium resources in the Wind River Range, Wyo._____________________________________________________ 10. Used in calculations of phosphate reserves and uranium resources in the Big Hole, Teton, Snake River, and Caribou Ranges, Wyoming and Idaho___________________________________________________ 11. Used in calculations of phosphate reserves and uranium resources in the Hoback and Wyoming Ranges, Wyo________________ ______________________________________________________________ 12-19. Phosphate reserves:

Possible Involvement of Permian Phosphoria Formation Oil as a Source of REE and Other Metals Associated with Complex U-V Mineralization in the Northern Bighorn Basin?

“…The U.S. Geological Survey (USGS) studied the Permian Phosphoria Formation and related rock units in the Western U.S. Phosphate Field in southeast Idaho, southwest Wyoming, and southwest Montana ( Figure 10) throughout much of the twentieth century [20][21][22][64][65][66][67][68][69][70][71][72][73][74][75][76][77]. The deposit has been a major phosphate resource for agricultural fertilizer [70].…”

“…For this study, data from several studies carried out by the USGS and the Wyoming State Geological Survey of the Phosphoria Formation in ID, WY and MT [64][65][66][67][73][74][75][76][77] was examined. Figure 10 shows the locations of samples sites and the approximate location of this study; map shows approximate location of the Permian age rock.…”

Geology, Mantle Tomography, and Inclination Corrected Paleogeographic Trajectories Support Westward Subduction During Cretaceous Orogenesis in the North American Cordillera

“…1). The event consisted of the emplacement of huge thrust sheets containing >10 km thick sections of Neoproterozoic-Paleozoic platformal sedimentary rocks, that apparently originated outboard of the western edge of the North American platform terrace (Sheldon 1963;Armstrong and Oriel 1965;Picard et al 1969;Rose 1977 U-Pb date of uraniferous carbonate from the forebulge, and a good match between δ 13 C org excursions in early terrestrial foredeep sedimentary rocks and well-dated Albian features of the global carbon isotope chemostratigraphy (Ludvigson et al 2010).…”

Geological Survey research 1972

“…Samples lJ -19, which are connected in figure 3 with arrows indi cating downward stratigraphic direction , are drill core samples obtained in General Petroleum's Lakeridge well at subsurface depths of 14,269 to 14,489 feet (Sheldon , 1963). They , as well as sample 5 from an underground mine, are not likely to have been exposed to solutions related to the current cycle of weathering and thus provide a basis for excluding modern weathering as a factor in certain compositional changes.…”