24 research outputs found
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Geology and mineral deposits of pre-Cambrian rocks of the Van Horn area, Texas
No full textAccompanied by 19 fold-outs. Plate 1 : Geologic map of Pre-Cambrian rocks of the Carrizo Mountains, Hudspeth and Culberson Counties, Texas. Plate 2 : Geologic map of Pre-Cambrian rocks of the Sierra Diablo Foothills, Hudspeth and Culberson Counties, Texas. Plate 3 : Geologic map of Pre-Cambrian rocks of the Sierra Diablo Foothills, Hudspeth County, Texas. Plate 4 : Geologic map of Pre-Cambrian rocks of the Northwest Van Horn Mountains, Culberson and Hudspeth Counties, Texas. Plate 5 : Geologic map of Pre-Cambrian rocks of the NE Van Horn Mountains, Culberson County, Texas. Plate 6 : Geologic map of Pre-Cambrian rocks of the Wylie Mountains, Culberson County, Texas. Plate 7 : Geologic map of Pre-Cambrian rocks of the Eagle Mountains, Hudspeth County, Texas. Plate 8 : Sections across the Carrizo Mountains. Plate 9 : Geologic structure sections in Sierra Diablo foothills. Lines of sections and letter symbols correspond to those on Plates 1 and 2. Plate 10 : Map of Sierra Diablo foothills, showing high-angle joints, fractures, and faults. Plate 11 : Panoramic view of west face of Beach Mountain. Plate 12 : Geologic map of Hazel Mine, Culberson County, Texas. Plate 13 : Hazel Mine in 1891. Plate 14 : Map of the Hazel Mine, World Exploration Co. surface and underground workings, Culberson County, Texas. Plate 15 : Generalized composite map of the Hazel Mine, Culberson County, Texas, 1944. Plate 16 : Assay map of the Hazel Mine, Culberson & Hudspeth Counties, Texas, April 25, 1929. Plate 17 : Geologic and topographic map of the Sancho Panza, St. Elmo, and Black Shaft Mines, and adjacent area, Allamoore Mining District, Hudspeth County, Texas. Plate 18 Underground workings of the Black Shaft Mine, Allamoore Mining District, Hudspeth County, Texas. Plate 19 : Map of part of northwestern Trans-Pecos Texas. Prepared in co-operation with the United States Geological SurveyUT Librarie
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Texas mineral resources: problems and predictions
No full textBureau Publication GC6502 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/384-gc6502.htmlWhen a reference is made to the mineral resources of Texas, most people think of oil and gas, and some few also of sulfur. And, of course, it is true that of the whopping 4.4 billion dollars' worth of minerals produced in Texas in 1963, 92% was oil, gas, and natural gas liquids. In 1963, for the 29th year, Texas led the Nation as a producer of minerals. Value of mineral products was twice the value of agricultural products, equal to the value of manufactured products, and equal to about one-half the value of all retail trade. It is clear that the State has a mineral-oriented economy; it is true also that the mineral industry is distributed broadly throughout the State and not concentrated in several giant oil fields or very large mines--241 of 254 counties reported mineral production in 1963. But in addition to oil and gas, Texas produced 22 other minerals last year valued at 361.7 million dollars. There are indeed many States which would happily settle for this 8 percent of Texas' mineral production. Significantly, this is the segment of Texas' mineral industry growing most rapidly, and it is the segment that will continue to grow.Bureau of Economic GeologyUT Librarie
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Mineral resources and conservation in Texas
No full textBureau Publication GC7001 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/397-gc7001.htmlThe conservation movement has grown enormously in strength and breadth during the last decade as a result of widespread concern about natural resources and the quality of the environment. The Federal leadership broadened the definition of conservation to applied ecology and thereby put a meaning into the word that went far beyond its original sense. Conservation now includes all of the physical, social, and legal problems attendant on use of the land. The inclusion of a wide variety of environmental problems under the umbrella of conservation caused a great deal of pushing and shoving of traditional "conservationists" to make way for the new "environmentalists." Broadening of the conservation movement to a total-environment movement has brought many new people into it--scientists, engineers, economists, geographers, and ecologists--people that are professionally concerned with the environment on a working-day basis.Bureau of Economic GeologyUT Librarie
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Basement Rocks of Texas and Southeast New Mexico
No full textAccompanied by 3 fold-outs. Plate I : Basement Rocks of Texas and Southeast New Mexico. Plate II : Schematic Cross Sections of Texas Basement Rocks. Plate III : Basement Rocks in the Central Basin Platform (A), Fort Stockton High (B), and Muenster Arch (C) ; enlarged from Plate IUT Librarie
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Geologic map of the Ouachita structural belt in Texas and Oklahoma
No full textAccompanied by 6 foldouts. Figure 2 : Devil’s River Uplift, Kinney and Val Verde Counties, Texas. Figure 3 : The Ouachita System Development of the Trans-Pecos Segment of the Ouachita Structural Belt. Plate I : The Ouachita System Regional Structure Map. Plate II : Geologic Map of the Ouachita Structural Belt in Texas and Oklahoma. Plate III : Geologic Map of Part of Southeastern United States Showing Outcrop and Subcrop Areas of Paleozoic and Older Rocks. Plate IV : The Ouachita System Structure Contours on Top of the Ouachita Belt in Texas and Oklahoma. Accompanied by map with title : Geologic map of the Ouachita structural belt in Texas and OklahomaUT Librarie
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Uranium in Texas, 1967
No full textBureau Publication GC6701 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/388-gc6701.htmlThe uranium industry, born in boom in the late 1940's and early 1950's, fell upon hard times after about a decade of lusty growth as anticipated private markets failed to develop on schedule and the United States Atomic Energy Commission cut back and stretched out its purchase program. Exploration for uranium in the United States came to a halt. Mills closed down or operated on reduced schedules as contracts expired. But in 1965 there were signs of change as more and more announcements of construction of nuclear reactors for generation of electric power appeared in the newspapers, and by 1966, the discouraged uranium salesman found doors opening rapidly and smiles on the faces of his potential customers. The hoped-for private-sector market for uranium had become a reality. By September 1, 1966, a total of 47 reactors were either in operation, under construction, or firmly committed in the United States; of the total, orders for or commitments for 32 were made since February of 1965. The industry considered this sharply rising curve, looked at the nuclear fuel requirements, appraised the known reserves of uranium ore, and literally sprang into action. In the first half of 1966, only about half a million feet of exploratory drilling was completed; twice this was scheduled for the second half of the year and a million and a half feet has been budgeted for 1967.Bureau of Economic GeologyUT Librarie
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Geology in the state government of Texas
No full textBureau Publication GC6505 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/387-gc6505.htmlThis circular presents the history of "geological survey" in Texas from its beginning in 1858, through its intermittent early history, to [1965]. It also shows that any organization which carried the name "survey" was very short-lived in Texas. Whether this is because of early legislators' convictions that a survey was something that was organized to do a specific job and then terminated, or whether there were deeper causes for the ephemeral nature of the early surveys is a matter for more thorough historical research and analysis.Bureau of Economic GeologyUT Librarie
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Pegmatites of the Van Horn Mountains, Texas
No full textTo obtain a print version of this publication visit: https://store.beg.utexas.edu/ and search for: RI0009.
Part of thesis--Yale University. "Reprinted from Economic geology, vol. 46, no. 2, March-April, 1951." Accompanied by map with title: Geology of the Mica Mine Horst, Northwest Van Horn Mountain (Culberson and Hudspeth counties) TexasZoned and unzoned perthite-quartz-plagioclase-muscovite pegmatites in the form of tabular bodies, irregular bodies with tabular branches, irregular masses, elongate lenses, lit-par-lit zones, and small augen and stringers are distributed throughout the Precambrian metasedimentary rocks of the Mica Mine area, Van Horn Mountains, Texas. Zoned bodies have a core of erthite and quartz and a plagioclase-quartz-perthite-muscovite wall zone. The pegmatites contain numerous schist inclusions, and some show evidence of contamination by biotite schist and amphibolite. Intimate penetration of the host rock by pegmatite fluids was accomplished by a combination of dilation and digestion. Dilation was effected by injection pressure and (to an unknown degree) orogenic stresses. Crystallization of a solution containing a large excess of potash took place in a closed or restricted system where a delicate balance of solubility factors was maintained for long periods or in a solution of low viscosity, thus facilitating growth of large crystals about a limited number of centers. Zoning and textural relationships are accounted for under these conditions. The importance of horizon and mode of emplacement in the formation of pegmatite textures and shapes is emphasized. A review of the granitization, palingenesis or anatexis, open-system (or aqueous), and magmatic theories of pegmatite origin shows that the features of Mica Mine pegmatites are best explained by the magmatic theory. The Mica Mine area has possibilities of exploitation for feldspar and scrap mica.UT LibrariesBureau of Economic Geolog
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The Hazel Copper-Silver Mine, Culberson County, Texas
No full textTo obtain a print version of this publication visit: https://store.beg.utexas.edu/ and search for: RI0016.
Part of illustrative matter in pocket. Bibliography: p.21.The Hazel mine is one of the oldest mines in Texas and has been the largest copper-producing property in the State. The mine has a recorded production of over 1 million pounds of copper and over million ounces of silver, and there are a number of years in which the mine was active but for which no figures are available. True production is in the neighborhood of 4 to 5 million ounces of silver and 1 million pounds of copper. The Hazel mine is the most important of a group of mines and prospects known as the Allamoore Van Horn copper district. This district lies within Culberson and Hudspeth counties in an area of pre-Cambrian rocks exposed between the scarp of the Sierra Diablo to the north and Beach and Baylor Mountains to the southeast and east. The district is bounded on the east and west by the approximate longitudes of Van Horn and Allamoore. The altitude is about 4,500 to 5,000 feet, climate is arid or semi-arid (generally less than 10 inches rain per year), and mining operations can be conducted all year. Water is obtained from wells or mine seeps. Vegetation is of a desert type and consists of various cacti, yucca, and thorny shrubs without suitable mine timber.UT LibrariesBureau of Economic Geolog
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Geological considerations in disposal of solid municipal wastes in Texas
No full textBureau Publication GC7002 - to purchase a print copy please go to: https://store.beg.utexas.edu/geologic-circulars/398-gc7002.htmlIn the United States the average citizen produces 6 to 8 pounds of solid wastes per day--this includes his personal contribution plus his pro-rata share of industrial and agricultural wastes. A city of 200,000 to 300,000 people is faced with collecting, transporting, and disposing of about 400 tons to 500 tons of solid wastes every day. This is the amount produced by the residents and small businesses--it does not include the wastes from big industrial operations. Costs of solid waste disposal range from 30 per ton depending on local labor costs, the distance the material must be transported, and the costs of acquisition and operation of disposal sites. In Texas, cost of landfill operations alone averages $1.10 per ton (Gazda and Malina, 1969, p. 23). The practice of open burning of wastes at the disposal site has been discontinued in many areas because of air pollution control legislation. This increases the volume of material that must be buried. In some areas the volume of solid wastes is reduced by high-temperature incinerators prior to ultimate disposal, in others controlled burning of wastes produces by-product steam.Bureau of Economic GeologyUT Librarie
