Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1968 with total page 328 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 1965 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Geological Survey Professional Paper written by and published by . This book was released on 1967 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bibliography and Index of Texas Geology 1961 1974 written by Elizabeth T. Moore and published by . This book was released on 1976 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Permian of Northern Pangea written by Peter A. Scholle and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 263 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Permian was a remarkable time period. It represents the maximum stage of Pangean continental assembly, includes a major global climatic shift from glacial to nonglacial conditions (icehouse-greenhouse transition), and is ter minated by one of the most profound faunal/floral extinction events in the Earth's history. In addition, Permian oceans, although poorly understood, must have had some quite unique characteristics. Permian seas reached the most extreme values of carbon, sulfur, and strontium isotopic ratios ever achieved in Phanerozoic time, and the isotopic ratios of all three elements abruptly returned to more "normal" values at, or very close to, the Permo Triassic boundary. Finally, the Permian is marked by an abundance of important sedimentary mineral resources. It has large fossil fuel concentra tions (coal, oil, and natural gas), enormous phosphate reserves, and very extensive evaporite deposits, including gypsum, anhydrite, and halite, as well as a variety of potash salts. Study of the Permian has been hampered, however, by a number of factors. These include a scattered geologic literature (presented in a variety of languages), a confusing regional and global stratigraphic framework (based, in part, on inadequate type sections), and largely provincial, often poorly correlatable faunas. All have contributed to the sparsity and inadequacy of overviews of this critical geological interval. The two volumes attempts to bring together some of the widely scattered observations about these fascinating rocks, at least for the northern (pre dominantly nonglacial) parts of Pangea.

Download or read book Bibliography of United States Landslide Maps and Reports written by Christopher S. Alger and published by . This book was released on 1985 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin of the American Association of Petroleum Geologists written by American Association of Petroleum Geologists and published by . This book was released on 1962 with total page 1276 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Big Bend Area and Solitario Dome Texas written by and published by . This book was released on 1986 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife Abstracts written by U.S. Fish and Wildlife Service and published by . This book was released on 1954 with total page 1020 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Union Catalog written by and published by . This book was released on 1956 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.

Download or read book A Life Wild and Perilous written by Robert M. Utley and published by Macmillan. This book was released on 1998-10-15 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Early in the nineteenth century, the mountain men emerged as a small but distinctive group whose knowledge and experience of the trans-Mississippi West exted the national consciousness to continental dimensions. Though Lewis and Clark blazed a narrow corridor of geographical reality, the West remained largely terra incognita until trappers and traders--Jim Bridger, Kit Carson, Tom Fitzpatrick, Jedediah Smith--opened paths through the snow-choked mountain wilderness. They opened the way west to Fremont and played a major role in the pivotal years of 1845-1848 when Texas was annexed, the Oregon question was decided, and the Mexican War ed with the Southwest and California in American hands, the Pacific Ocean becoming our western boundary.

Download or read book Guidebook Field Trip written by West Texas Geological Society and published by . This book was released on 1986 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of the Comstock Indian Wells Area Val Verde Terrell and Brewster Counties Texas written by Val L. Freeman and published by . This book was released on 1968 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: A description of the petrography and structure of the sedimentary rocks along the Rio Grande in the vicinity of the mouth of the Pecos River.

Download or read book Paleotectonic Investigations of the Permian System in the United States written by Edwin Dinwiddie McKee and published by . This book was released on 1967 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Catalog of the United States Geological Survey Library written by U.S. Geological Survey Library and published by . This book was released on 1972 with total page 814 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book After Lewis and Clark written by Robert M. Utley and published by U of Nebraska Press. This book was released on 2004-01-01 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 1807, a year after Lewis and Clark returned from the shores of the Pacific, groups of trappers and hunters began to drift West to tap the rich stocks of beaver and to trade with the Native nations. Colorful and eccentric, bold and adventurous, mountain men such as John Colter, George Drouillard, Hugh Glass, Andrew Henry, and Kit Carson found individual freedom and financial reward in pursuit of pelts. Their knowledge of the country and its inhabitants served the first mapmakers, the army, and the streams of emigrants moving West in ever-greater numbers. The mountain men laid the foundations for their own displacement, as they led the nation on a westward course that ultimately spread the American lands from sea to sea.

Download or read book Monthly Catalogue United States Public Documents written by and published by . This book was released on 1986 with total page 978 pages. Available in PDF, EPUB and Kindle. Book excerpt: