Geology and geography of the Henry Mountains region, Utah

Uranium resources of the Green River and Henry Mountains districts, Utah - a regional synthesis

“…At each deposit an attempt was made to determine the stratigraphic position of the ore-bearing unit; lithologic, stratigraphic, and structural controls affecting the deposit; indicated and inferred reserves and the size range of the deposit; ore and (or) channel trends; potential sources of ore in the immediate deposit area; and the desirability of further exploration in the area of the deposit. McKnight (1940), Baker (1946), and Hunt (1953) have given detailed accounts of early exploration and geologic work done in the Green River and Henry Mountains districts. Major J. W. Powell, in the course of his exploration of the Green and Colorado Rivers by boat in 1869 and 1871, was probably the first geologist to study the region.…”

Episodic sediment delivery and landscape connectivity in the Mancos Shale badlands and Fremont River system, Utah, USA

“…12). In 1937, Hunt et al (1953Hunt et al ( , p. 2073 estimated that some 30x10 6 m 3 of material had been eroded from this reach of river, about 0.75x10 6 m 3 jyr.…”

“…Moreover, increasingly dense riverbank and floodplain vegetation are increasing the roughness of the flow path, resulting in a larger percentage of total available energy consumed in turbulence and less in traction (Burkham, 1976b an increasing proportion of sediment delivered from the upland landscape is being stored locally, and less is continuing downstream. Hunt et al (1953). Geologic and archaeologic data suggests that the previous cycle of arroyo filling on the Colorado Plateau took 400 years (Hereford, 1986(Hereford, , 2002 to 600 years (Graf, 1987, p. 266).…”

Geology of the Rainy Day uranium mine, Garfield County, Utah

“…Fine-grained friable white sandstone and dolomitecemented light-yellow sandstone are the main constituents although a few sandy dolomite beds are present. This sandstone ranges from 50 to 75 feet in thickness and was probably included in the Kaibab limestone by previous workers (Gregory and Moore, 1931;Hunt, 1953;Steed, 195 The samples are arbitrarily positioned in figure 5, so that uranium increases from left to right. Ytterbium, yttrium, copper, nickel, cobalt, lead, silver, molybdenum, and zinc show a 10-fold or greater increase, from barren rock to uranium ore, similar to that of uranium* The author "believes this correspondence indicates that these elements were introduced with, and roughly in proportion to uranium; if this is true they were carried by the ore-forming solutions and were concentrated in the deposit during the ore-forming period.…”

“…Reports describing the geology of the area are those by Gregory and Moore (1931), Hunt (1953), and Steed (195*0-The following is a brief resume.…”