Download or read book The Geology of the Western Buckskin Mountains Yuma County Arizona Classic Reprint written by Ralph C. Blanchard and published by . This book was released on 2015-07-04 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: Excerpt from The Geology of the Western Buckskin Mountains, Yuma County, Arizona Western Arizona is a part of that semi-arid region, the Lower Colorado Basin, one of the large physiographic provinces of the United States. To-day many of its portions remain blank upon the geologic map, and other parts are known only from reconnaissance surveys. The basement complex of granites, gneisses, porphyries, pegmatites and metamorphosed sediments is as yet unsolved as to origin or relationship to other Precambrian and Algonkian rocks in Arizona and the conditions in Paleozoic time have still to receive a more detailed solution. The Mesozoic is largely a matter of conjecture and it is nut until the Tertiary and Quaternary strata arc reached that the region affords the necessary data for a satisfactory explanation of the conditions which existed. The economic resources have been the subject of some study and there is perhaps little to he added to the general knowledge in this particular. Besides gold, silver, copper, lead and mercury there is also the western type of hematite ores, whose genesis has been the subject of several recent investigations in different parts of the western United States. This paper was prepared with the idea that a detailed study of any part of this region might perhaps add something to the knowledge of it. The rocks of the western part of the Buckskin Mountains, their relations to certain hematite deposits; and physiographic observations form the subject of the investigation. Previous Literature: The Whipple expedition in 1853 made the first official report upon the region, hut was not concerned with its geology. Jules Marcou, Thomas Antisell and William P. Blake were the first geologists to give an account of the Lower Colorado Basin. They were attached to the Pacific Railroad expedition in 1854-56. Benjamin Silliman and W. P. Blake in these early days contributed papers to the American Journal of Science, recording some of their observations. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.

Download or read book The Geology of the Western Buckskin Mountains Yuma County Arizona written by Ralph Carpenter Blanchard and published by Franklin Classics. This book was released on 2018-10-13 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book The Geology of the Western Buckskin Mountains Yuma County Arizona written by Ralph Carpenter Blanchard and published by . This book was released on 1913 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology and Mineral Resources of the Buckskin and Rawhide Mountains West central Arizona written by Jon E. Spencer and published by . This book was released on 1989 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geologic Reconnaissance of a Part of Western Arizona written by Willis Thomas Lee and published by . This book was released on 1908 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to the Geology of Saguaro National Park written by John V. Bezy and published by Arizona Geological Survey. This book was released on 2005 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology of Arizona written by Dale Nations and published by . This book was released on 1996 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geology of Arizona Second Edition

Download or read book Arizona Geological Society Digest written by Arizona Geological Society and published by . This book was released on 1981 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Guide to the Geology of Catalina State Park and the Western Santa Catalina Mountains written by John V. Bezy and published by . This book was released on 2002 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Books in Series 1876 1949 Titles written by R.R. Bowker Company and published by . This book was released on 1982 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Books in Series 1876 1949 Titles written by and published by . This book was released on 1982 with total page 970 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dictionary Catalog of the Research Libraries of the New York Public Library 1911 1971 written by New York Public Library. Research Libraries and published by . This book was released on 1979 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Books in Series written by and published by . This book was released on 1982 with total page 936 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mesozoic Assembly of the North American Cordillera written by Robert S. Hildebrand and published by Geological Society of America. This book was released on 2013-01-01 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In this well-illustrated book, Hildebrand expands upon his model for the development of the North American Cordillera detailed in Special paper 457. Starting with an overview of Cordilleran geology he goes on to provide an in depth look at how the Rubian ribbon continent was assembled. He integrates the complex geology of the Cordillera into an actualistic model involving arc magmatism, arc-continent collision, slab failure magmatism, and transcurrent motion in both Rubia and the western North American margin. While much of the focus is on the assembly of the Rubian ribbon continent, Hildebrand explores its interactions with North America during the Sevier and Laramide events and concludes that North America was the lower plate in both"--Provided by publisher.

Download or read book Biennial Report of the Bureau of Mines of the State of Colorado for the Years written by and published by . This book was released on 1913 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Romance of the Colorado River the Story of Its Discovery in 1840 With an Account of the Later Explorations and With Special Reference to the Voyages of Powell Through the Line of the Great Canyons written by Frederick Samuel Dellenbaugh and published by Library of Alexandria. This book was released on 2020-09-28 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Paleomagnetic Rotations and Continental Deformation written by Catherine Kissel and published by Springer. This book was released on 2011-09-26 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the most interesting results obtained in the last two decades in the study of crustal deformation has been the recognition that large regions of continental crust undergo rotations about vertical axis during deformation. Proof of such rotations has come through the paleomagnetic studies, which reveal rotations when paleomagnetic declinations within the deforming region arc compared with those found in coeval rocks in the stable regions outside the deforming zone. Such rotations were first described in Oregon then in the North American Cordilleras and in Southern California and were a surprise to everyone. Even in California which, as a result of oil exploration, was among the best geologically explored regions in the world, no one could claim to have predicted that these rotations would be found. Rotations have subsequently been found in other areas of recent continental tectonic activity, notably in the Basin and Range province, New Zealand, the Andes, Greece and Western Turkey, so that they appear as an important feature of continental deformation.