Geologic Field Trips in Northern Oregon and Southern Washington - Primary Source Edition
Title | Geologic Field Trips in Northern Oregon and Southern Washington - Primary Source Edition PDF eBook |
Author | John D. Beaulieu |
Publisher | Nabu Press |
Pages | 212 |
Release | 2013-11 |
Genre | |
ISBN | 9781295235162 |
This is a reproduction of a book published before 1923. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.
Geologic Field Trips in Northern Oregon and Southern Washington
Title | Geologic Field Trips in Northern Oregon and Southern Washington PDF eBook |
Author | John D Beaulieu |
Publisher | Sagwan Press |
Pages | 212 |
Release | 2018-02-04 |
Genre | |
ISBN | 9781376677683 |
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.
Geologic Field Trips in Northern Oregon and Southern Washington (Classic Reprint)
Title | Geologic Field Trips in Northern Oregon and Southern Washington (Classic Reprint) PDF eBook |
Author | John D. Beaulieu |
Publisher | Forgotten Books |
Pages | 216 |
Release | 2017-11-06 |
Genre | Science |
ISBN | 9780260404213 |
Excerpt from Geologic Field Trips in Northern Oregon and Southern Washington The geology of Oregon is as varied and fascinating as that of any state of the Union. East of Port land lies the north-south trending Cascade Range, 0 snow-capped volcanic pile. Farther east lie flood basalts, batholithic highs, and Basin and Range terrain. West of the Cascades the interaction of land, sea, and volcanism has left a challenging geologic record. In tune with geologic developments around the world, the plate tectonic model is finding increasing application to the geol09y of the State of Oregon. The imbricate thrust complex of Mesozoic rocks in southwestern Oregon has been attributed to sea-floor spreading, and recently the enigmas associated with the Colebrooke Schist have begun to yield to analysis in terms of the new tectonics. Recent work in the Tertiary units about the periphery of the Klamath Mountains may soon lead to an even more accurate appraisal of the age and nature of the later stages of plate tectonic activity in that area Closer to home, the Coast Range is largely unmapped and is ripe for reinterpretation in terms of the new tectonics. The fault blocks, basalt flows, and ignimbrites of southeastern Oregon are undergoing re-evaluation in terms of some of the subtler aspects of sea-floor spreading. Tensional shearing related to deep - seated upwelling may account for the tapping of basaltic magma at depth and for the regional development of block faulting. Similar mechanisms may account for the extensive flood basalts of the Columbia River Group to the north. Both may be part of a larger picture in which late Miocene re - orientations of plate tectonic features profoundly affected the ge0109y of much of the Pacific Basin and the world. Going back in time, the early and middle Tertiary andesites of the Cascades Range and the John Day Basin may be interpreted as volcanic material produced by differential melting of a Iithospheric plate related to an ancestral Pacific Basin rise system. Still further back in time, many of the Paleozoic exposures of northeastern Oregon may represent structural slabs of oceanic rock brought together in a subduction zone by sea-floor spreading. Viewed in this light, our failure to relate the various units stratigraphically is not only understandable, it is to be expected. With the present day stratigraphic techniques, perhaps our aim should be to understand the structural relationships of the units and to reserve final stratigraphic synthesis until later. 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.
Geologic Field Trips in Western Oregon and Southwestern Washington
Title | Geologic Field Trips in Western Oregon and Southwestern Washington PDF eBook |
Author | Keith Floyd Oles |
Publisher | |
Pages | 262 |
Release | 1980 |
Genre | Geology |
ISBN |
Selective Field Trips Investigating the Geology of the North Cascades
Title | Selective Field Trips Investigating the Geology of the North Cascades PDF eBook |
Author | |
Publisher | |
Pages | 30 |
Release | 1977 |
Genre | Geology |
ISBN |
Geology of the Pacific Northwest
Title | Geology of the Pacific Northwest PDF eBook |
Author | William N. Orr |
Publisher | Waveland Press |
Pages | 350 |
Release | 2006-12-04 |
Genre | Science |
ISBN | 1478609877 |
The geologic history of the Pacific Northwest is as unique as the region itself. Created via tectonic plate movements and accretionary events, the original terranes were subsequently covered by sedimentary layers, ash, lavas, and glacial debris. These processes, begun millions of years ago, continue to affect the area, as seen in the eruption of Mount St. Helens and catastrophic Japanese tsunamis created by earthquakes in the Pacific Northwest. Understanding of the regions geology has led to new insight in volcanic eruption prediction, disaster preparedness, the environmental effects of mining, and urban development as it relates to geologic hazards. The Orrs detailed and informative writing style appeals to those with geologic training as well as beginners with an interest in the region. Each chapter covers a specific subregion, allowing for maximum flexibility both in the classroom and for the casual reader. The authors central theme that continental plate tectonics are the fundamental processes of Northwest geologic history permeates throughout the book.
Geologic Field-trip Guide to the Volcanic and Hydrothermal Landscape of the Yellowstone Plateau
Title | Geologic Field-trip Guide to the Volcanic and Hydrothermal Landscape of the Yellowstone Plateau PDF eBook |
Author | Lisa A. Morgan |
Publisher | Government Printing Office |
Pages | 116 |
Release | 2017 |
Genre | Calderas |
ISBN | 9781411342040 |