Geologic Relations Among Uranium Deposits, South Texas, Coastal Plain Region, U.S.A.

Remote detection and geochemical studies for finding hydrocarbon-induced alterations in Lisbon Valley, Utah

“…Chemical reduction due to interaction with hydrocarbons can result in removal of hematite and its transformation to pyrite, Love, 1957;Eargle and Weeks, 1973;Donovan, 1974;Olmstead, 1975;Goldhaber et al, 1978;Donovan et al, 1979;Ferguson, 1979a,b;Dalziel and Donovan, 1980;Donovan et al, 1981;Abrams et al, 1984;Allen and Thomas, 1984;Duchscherer, 1984;Lilburn and Al-Shaieb, 1984;Oehler and Sternberg, 1984;Segal et al, 1984Segal et al, , 1986Reynolds et al, 1984Reynolds et al, , 1988Reynolds et al, , 1990Conel and Alley, 1985;Lang and Nadeau, 1985;Roeming and Donovan, 1985;Richers et al, 1986;McCoy and Wullstein, 1988;McCoy et al, 1989;Scott, 1989;Arp, 1992;Klusman et al, 1992;Reid et al, 1992;Al-Shaieb et al, 1994;Bammel et al, 1994;Campbell, 1994;Schumacher, 1996;Jengo and Vincent, 1999;Van der Meer et al, 2002;Jacobson, 2006;Petrovic, 2006). Segal et al (1984Segal et al ( , 1986, Conel and Alley (1985), Lang and Nadeau (1985), …”

Journal of Research of the U. S. Geological Survey, 1976, volume 4, issue 5

“…Similar facies are uranium host rocks in the Manka, Stoeltje, and E. Brysch mines to the northeast and in the oxidized-ore mines to the northwest. Most of the ore is found in roll-type deposits (Eargle and Weeks, 1973). The geochemical environment updip, to the northwest, of the deposits is oxidizing and downdip it is reducing.…”

“…The humid climate probably caused earlier stabilization of newly deposited.sand and retarded growth of eolian features similar to those on the Holocene and Pleistocene coast. The ancestral coast was periodically engulfed in volcanic ash f rom eruptions that were apparently located in northern Mexico and west Texas (Eargle and Weeks, 1973). During eruptions, coastal lagoons and swamps were inundated by large quantities of ash that was mostly waterbome.…”

“…At the surface these members in general dip southeast toward the coast, at no more than 1°, and they may locally be horizontal. Faults, some with the upthrown side toward the northwest and some with the downthrown side toward the northwest, in general parallel the coast and form wide grabens (Eargle and Weeks, 1973).…”

Geochemical and mineralogical studies of a South Texas roll-front uranium deposit

“…Of the major uranium producing regions, the south Texas Coastal Plain ranks third in reserves (Anonymous, 1976) and, therefore, consititutes a significant contribution to the overall domestic uranium picture. Several recent articles have reviewed the general geologic relationships of the south Texas deposits to their host rocks (Eargle and Weeks, 1973;Eargle and others, 1975;Dickinson, 1976), however, published indepth studies of individual deposits are limited to two examples (Klohn and Pickens, 1970;Dickinson and Sullivan, 1976). This report describes the mineralogical and geochemical properties of a deposit in Webb County, Texas.…”