Download or read book Geology and Mineral Resources of the East Mojave National Scenic Area San Bernardino County California written by U. S. Department U.S. Department of the Interior and published by CreateSpace. This book was released on 2014-04-28 with total page 274 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rocks of the East Mojave National Scenic Area (EMNSA) record a history of dynamic geologic events that span more than 1,800 million years (m.y.). These geologic events contributed significantly to development of the spectacular vistas and panoramas present in the area today. The oldest rocks underlie much of the northern part of the EMNSA. These rocks were subjected to extreme pressures and temperatures deep in the Earth's crust about 1,700 million years ago (Ma). They were subsequently intruded by granitic magmas from about 1,695 to 1,650 Ma, by additional granitic magmas at about 1,400 Ma and, later, at about 1,100 Ma, by iron-rich magmas that crystallized to form dark igneous rocks termed diabase. Unusual potassium- and magnesium-rich rocks, emplaced at about 1,400 Ma, crop out in a few places within and near the EMNSA. Their distinctive composition results from very small degrees of partial melting of mantle peridotite that was highly enriched in incompatible trace elements. At Mountain Pass, just outside the northeast boundary of the EMNSA, the potassium- and magnesium-rich rocks are accompanied by a rare type of carbonatite, an igneous rock composed of carbonate minerals, that contains high-grade rare earth element mineralization.

Download or read book Geology and Mineral Resources of the East Mojave National Scenic Area San Bernardino County California written by Ted G Theodore and published by Scholar's Choice. This book was released on 2015-02-16 with total page 276 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 was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. 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.As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. 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 Evaluation of Metallic Mineral Resources and Their Geologic Controls in the East Mojave National Scenic Area San Bernardino County California written by and published by . This book was released on 1991 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geology and Mineral Resources of the East Mojave National Scenic Area San Bernadino County California written by Ted Theodore and published by . This book was released on 2015-09-25 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a detailed report on the geology of the East Mojave National Scenic Area (EMNSA). It includes summaries and syntheses from the ongoing detailed investigations of many geologists. These geologic investigations are aimed primarily toward assembling a modern geologic framework for the region, but also include studies of the mineral resources of many individual areas within the EMNSA. An assessment of the potential for discovery of new metallic mineral resources specifically within the EMNSA is presented. Known mineral occurrences are classified by deposit type insofar as possible.

Download or read book Mineral Resources of the East Mojave Area San Bernardino County California Including Mojave Basin Area written by R. M. Smith and published by . This book was released on 1975 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Resources of the Turtle Mountains Wilderness Study Area San Bernardino County California written by David MacArthur Miller and published by . This book was released on 1987 with total page 216 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantitative Assessment of Undiscovered Metallic Mineral Resources in the East Mojave National Scenic Area Southern California written by Carroll Ann Hodges and published by . This book was released on 1991 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Resources of the Castle Peaks Wilderness Study Area San Bernardino County California written by David MacArthur Miller and published by . This book was released on 1986 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Resources of the Newberry Mountains Wilderness Study Area BLM No CDCA 206 San Bernardino County California written by Charles Sabine and published by . This book was released on 1985 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Resources of the Newberry Mountains and Rodman Mountains Wilderness Study Areas San Bernardino County California written by R. J. Goldfarb and published by . This book was released on 1983 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preliminary Geologic Map of the East Mojave National Scenic Area California written by and published by . This book was released on 1993 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The California Desert Mineral Symposium written by and published by . This book was released on 1989 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mineral Resources of the Whitewater Study Area Riverside and San Bernardino Counties California written by Edward L. McHugh and published by . This book was released on 1986 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mines and Geology of the Randsburg Area written by D. D. Trent and published by San Diego Geological Society. This book was released on 2006 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: The western Mojave Desert region takes its rightful place in the storied history of major Old West mining camps in this volume by geology professor Dee Trent. The Randsburg area experienced 5 mining booms from 1893 into the 21st century, with riches from the earth that included gold, silver, and tungsten. Historic maps and photos. Randsburg is 50 miles northeast of Mojave.

Download or read book Geologic Investigations of Southern California Deserts Geology of the Alvord Mountain Quadrangle San Bernardino County California Part of a General Appraisal of the Mineral Resources of the Mojave Desert Region written by Geological Survey (U.S.) and published by . This book was released on 1961 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mining History and Geology of Joshua Tree National Park written by Margaret R. Eggers and published by . This book was released on 2004 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An in-depth look at earth science and mineral resources in this maginificent desert and mountain wilderness. Includes seld-guiding auto tours, full-color geology map.

Download or read book Publications of the Geological Survey written by Geological Survey (U.S.). and published by . This book was released on 1991 with total page 962 pages. Available in PDF, EPUB and Kindle. Book excerpt: