Download or read book Hydrothermal Alteration in Research Drill Hole Y 3 Lower Geyser Basin Yellowstone National Park Wyoming written by Keith E. Bargar and published by . This book was released on 1985 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrothermal Alteration in Core from Research Drill Hole Y 2 Lower Geyser Basin Yellowstone National Park Wyoming written by Keith E. Bargar and published by . This book was released on 1981 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Y-2, a U.S. Geological Survey research diamond-drill hole in Lower Geyser Basin, Yellowstone National Park, was drilled to a depth of 157.4 meters. The hole penetrated interbedded siliceous sinter and travertiae to 10.2 m, glacial sediments of the Pinedale Glaciation interlayered with pumiceous tufffrom 10.2 to 31.7 m, and rhyolitic lavas of the Elephant Back flow of the Central Plateau Member and the Mallard Lake Member of the Pleistocene Plateau Rhyolite from 31.7 to 157.4 m. Hydrothermal alteration is pervasive in most of the nearly continuous drill core. Rhyolitic glass has been extensively altered to clay and zeolite minerals (intermediate heulandite, clinoptilolite, mordenite, montmorillonite, mixed-layer illite- montmorillonite, and illite) in addition to quartz and adularia. Numerous veins, vugs, and fractures in the core contain these and other minerals: silica minerals (opal, B-cristobalite, a-cristobalite, and chalcedony), zeolites (analcime, wairakite, dachiardite, laumontite, and yugawaralite), carbonates (calcite and siderite), clay (kaolinite and chlorite), oxides (hematite, goethite, manganite, cryptomelane, pyrolusite, and groutite), and sulfldes (pyrrhotite and pyrite) along with minor aegirine, fluorite, truscottite, and portlandite(?). Interbedded travertine and siliceous sinter in the upper part of the drill core indicate that two distinct types of thermal water are responsiblef or precipitation of the surficial deposits, and further that the water regime has alternated between the two thermal waters more than once since the end of the Pinedale Glaciation (-10,000 years B.P.). Alternation of zones of calcium-rich and sodium- and potassium-richh ydrothermal minerals also suggeststh at the water chemistry in this drill hole varies with depth.
Download or read book Hydrothermal Alteration in Core from Research Drill Hole Y 1 Upper Geyser Basin Yellowstone National Park Wyoming written by Setsuko Honda and published by . This book was released on 1970 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Y-1 penetrated an active hot-spring system to 215 feet (65.5 m), where the temperature was 171 (degrees) C. The core is sinter to 12 feet (3.7 m), sandstone, conglomerate, and siltstone composed of rhyolite detritus to 211 feet (64.3 m), and bedrock rhyolite. Hydrothermal minerals replace obsidian and fill open spaces. Original plagioclase and alkali feldspar are unaltered. Clinoptilolite, mordenite, opal, and relic œ-cristobalite occur in the less altered core. In the more intensely altered core analcime is the sole zeolite, hydrothermal quartz is abundant, and œ-cristobalite has been converted to quartz. Montmorillonite and celadonite occur throughout most of the core: calcite, pyrite, muscovite, kaolinite, erionite, and aegirine are sporadic. Hydrothermal alkali feldspar occurs in only one sample. Associated hot-spring fluids are dilute, slightly alkaline, and contain mainly Na, Cl, HCO(3), and SiO(2). Major factors controlling formation of hydrothermal minerals in Y-1 are 1) nature of starting material, 2) elevated temperature, and 3) fluid composition. Parallel distribution patterns of zeolites and silica species suggest that variation in SiO(2) activity is important. Hydrothermal alteration in Y-1 has produced mineral assemblages similar to those produced during low-temperature diagenesis of sedimentary rocks rich in volcanic detritus.
Download or read book Hydrothermal Alteration in Research Drill Hole Y 3 Lower Geyser Basin Yellowstone National Park Wyoming written by Geological Survey (U.S.) and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrothermal Alteration in Research Drill Hole Y 3 Lower Geyser Basin Yellowstone National Park Wyoming written by Keith E. Bargar and published by . This book was released on 1985 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrothermal Alteration in Research Drill Hole Y 6 Upper Firehole River Yellowstone National Park Wyoming written by Keith E. Bargar and published by . This book was released on 1984 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrothermal Mineralogy of Core from Geothermal Drill Holes at Newberry Volcano Oregon written by Keith E. Bargar and published by Geological Survey (USGS). This book was released on 1999 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected References Used to Compile the Metallic and Industrial Minerals Map of Wyoming written by Ray E. Harris and published by . This book was released on 1985 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Contact Metamorphism written by Derrill M. Kerrick and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 864 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 26 of Reviews in Mineralogy provides a multidisciplinary review of our current knowledge of contact metamorphism. As in any field of endeavor, we are provided with new questions, thereby dictating future directions of study. Hopefully, this volume will provide inspiration and direction for future research on contact metamorphism. The Mineralogical Society of America sponsored the short course on Contact Metamorphism, October 17-19, 1991, at the Pala Mesa Resort, Fallbrook, California, prior to its annual meeting with the Geological Society of America.
Download or read book Natural Zeolites in Wyoming written by Ray E. Harris and published by . This book was released on 1990 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geology of Yellowstone Park Area written by and published by . This book was released on 1982 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Publications of the U S Geological Survey written by and published by . This book was released on 1986 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1980 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Professional Paper written by Geological Survey (U.S.) and published by . This book was released on 1978 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research written by Geological Survey (U.S.) and published by . This book was released on 1974 with total page 822 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research of the U S Geological Survey written by Geological Survey (U.S.) and published by . This book was released on 1974 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scientific notes and summaries of investigations in geology, hydrology, and related fields.
Download or read book Physical Results of Research Drilling in Thermal Areas of Yellowstone National Park Wyoming written by and published by . This book was released on 1975 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
