Incomplete manuscript on stratigraphy and structural geology and uranium-vanadium and copper deposits of the Lisbon Valley area, Utah-Colorado

Integrated hyperspectral remote sensing, geochemical and isotopic studies for understanding hydrocarbon-induced rock alterations

“…The Wingate Sandstone forms the lowermost part of the Glen Canyon Group, which also includes the Kayenta and Navajo Sandstones. The Wingate Sandstone in the Lisbon Valley area is generally up to 90 m thick (Weir and Puffett, 1981), but because of its cliff-forming habit it is mostly inaccessible and difficult to measure precisely.…”

Geochemical and Isotopic Assessment of Regional Groundwater Flow and Aquifer Connectivity in the Lisbon Valley, Utah

“…Following its formation, the Paradox Basin was filled with evaporitic deposits, lain by a restricted seaway that was bounded to the northeast by the Uncompaghre Uplift. Some of these evaporites were deposited in local lows allowing for the accumulation of thick salt beds (Weir and Puffet, 1981). Subsequent burial of these lower-density salts by clastic materials of a higher density, sourced from the adjacent highlands, led to the continued plastic deformation of the salts, with the density difference causing them to rise.…”

“…The LVA is an elongated salt diapir, approximately 32 km in length. The LVA plunges to the northwest and southeast, with the southeast end affecting the study location (Jackson, 1997;Weir and Puffet 1981). The LVF extends approximately 48 km in length, with the fault zone spreading out in a complex, fan-like structure.…”

Variations in the abundance of occluded light hydrocarbons (C b1 s-C b5 s) and their relation to diagenetic changes, in the Salt Wash Member, Late Jurassic Morrison Formation, Slick Rock District, San Miguel County, Colorado

“…Breit and others (1987) determined that solutions, which originated in Pennsylvanian evaporites, moved upward along faults and laterally through the Morrison Formation. Minor amounts of asphaltite locally fill some fractures (Weir and Puffet, 1981), indicating petroleum may have been a component of these fluids. Considering these interpretations, hydrocarbons transported with solutions that altered Morrison sandstones may have been trapped in pore-filling carbonate cements or been adsorbed on clays.…”

“…Vertical offset of the Morrison Formation along these faults increases from east (2 m) to west (30 m) across the district. Westward, the Dolores zone of faults trends into the Lisbon Valley fault, which has a maximum vertical displacement of 1200 m (Weir and Puffet, 1981).…”