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<br />. .. .~ ! <br />Ol1tf6 g <br /> <br />The nearest coalfield to the study,area is the Vernal field (classified <br /> <br />as high-volatile C biuminous) (fig. 1). "All the economically important <br /> <br />coal in the Vernal field is present in a single zone in the Frontier <br /> <br />Sandstone Member of, the Mancos Shale of Cretaceous age. <br /> <br />The <br /> <br />principal coal bed ranges from about 2 to,7 ft [[/3 to 2 ~ in thickness. <br /> <br />East of the Green River, the coal-bearing strata is present, but very <br /> <br />little coal is visible because of poor exposures. . <br /> <br />East of Ashley <br /> <br />Creek the coal-bearing strata are locally concealed by unconformable <br /> <br />younger strata and may have been removed in part by erosion prior to the <br /> <br />deposition of the overlying sediments of the Frontier Member".15 <br /> <br />_....----~-._----- <br /> <br />The approximate location of coal outcrops shown in figure 1 was <br /> <br />adapted from Figure I, Coal fields in the Uinta Basin, Utah, page 254 of <br /> <br />, the same guidebook. <br /> <br />. 'Uranium <br /> <br />Browns Park is the type locality of the Browns Park Formation. <br /> <br />This formation has been the source of low grade uranium production in <br /> <br />Moffat County, Colo., since 1953. Thus, areas where the Browns Park <br /> <br />Formation occurs are potential sites for uranium exploration. In the <br /> <br />,vicinity of the study area, the formation occurs west of the Canyon of <br /> <br />Ladore near the Utah state line, along the crest of Q-Wi-Yu-Kuts Plateau <br /> <br />to the northwest of the Green River, and in Browns Park. <br /> <br />I5Guidebook to the Geology and Mineral Resources of the Uintp Basin. <br /> <br />Ch. on Coal in the Uinta Basin, Utah, by Elmer M. Schell. Thirteenth <br /> <br />Annual Field Conference, Intermountain Assoc. Petrol-Geol., 1964, <br /> <br />Publishers Press, p. 255. <br /> <br />. H' <br />