Ice Age Floods Left Their Mark on the Pacific Northwest PDF Download

Author:
Publisher:
ISBN:
Category : Floodplains
Languages : en
Pages : 1

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Author: Bruce Norman Bjornstad
Publisher: Springer Nature
ISBN: 3030530434
Category : Science
Languages : en
Pages : 183

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This heavily illustrated book contains descriptions and geologic interpretations of photographs (mostly aerial) illustrating the power and magnitude of repeated Ice Age flooding in the Pacific Northwest, as recently as 14,000 years ago. The scale of Ice Age floods was so huge that today it is often difficult to see and appreciate the power and magnitude of such megafloods from ground level. However, from the air, landforms created by the floods often come into clear focus. Aerial images, obtained via unmanned aerial vehicle (drone) as well as fixed-wing airplane, add a new perspective on evidence gathered by dozens of scientists since 1923.

Author: Michael J. Oard
Publisher: Creation Research Society
ISBN: 9780940384323
Category : Floods
Languages : en
Pages : 133

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One of the most spectacular floods in prehistoric times, besides the Genesis Flood, was the great Lake Missoula flood, which left its mark in the Channeled Scabland of the Pacific Northwest in the United States. However, the evidence, which is now considered to be overwhelming and irrefutable, was the subject of intense controversy for 40 years before being accepted. In this book Michael Oard discusses not only the abundant evidence, which at the time was considered to be too biblical, but also the circumstances surrounding the controversy. Given such prejudices, it is not expected that mainstream geologists will ever see evidence for the largest flood of all time the Genesis Flood. Once the concept of a Lake Missoula flood was accepted, geologists soon saw what they thought was evidence for anywhere from 40 to 100 floods at the peak of the last ice age. However, Oard shows that the evidence is strong that there was only one major flood, with possibly a few minor floods. A chapter is dedicated to other ice age floods, including John Shaws paradigm-busting subglacial flood hypotheses. Evidence for the Genesis Flood is also presented, consisting generally of new information from the field of geomorphology. Another chapter is devoted to a defense of the short time scale of Scripture. And finally, Oard demonstrates that the Lake Missoula flood also provides analogs for the catastrophic formation of mysterious geomorphological features, such as water and wind gaps.

Author: Jack Nisbet
Publisher: Sasquatch Books
ISBN: 1570619808
Category : Nature
Languages : en
Pages : 258

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Master historian Nisbet has communed with Indians, astronauts, miners, and scientists to reveal a wonderfully personal, engaging, and authoritative picture of the cultural and natural history of the Inland Northwest. --John Marzluff, author of Welcome to Subirdia and Gifts of the Crow Ancient Places is a collection of nonfiction stories about the interplay between people and the landscape where they happen to live. Drawing on a range of fresh personal research, both oral and written, author Jack Nisbet (Sources of the River, The Collector) engages some of the iconic images in Northwest history: from fossil riches to ice age floods; from the Willamette Meteorite to the 1872 Earthquake; from up-and-down mining cycles to steady rounds of tribal food gathering. Although the scale of time and space in some of the pieces is immense, individual characters still manage to leave their marks; even though the force of modern civilization sometimes seems overwhelming, small places and their key components somehow persevere. These are the genesis stories of a region. In Ancient Places, Jack Nisbet uncovers touchstones across the Pacific Northwest that reveal the symbiotic relationship of people and place in this corner of the world. xx

Author: William N. Orr
Publisher: Waveland Press
ISBN: 1478609877
Category : Science
Languages : en
Pages : 350

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Book Description
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.

Author: David D. Alt
Publisher: Mountain Press Publishing
ISBN: 9780878424153
Category : Science
Languages : en
Pages : 212

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Book Description
Glacial Lake Missoula and Its Humongous Floods tells the gripping tale of a huge Ice Age lake that drained suddenly--not just once but repeatedly--and reshaped the landscape of the Northwest. The narrative follows the path of the floodwaters as they raged from western Montana across the Idaho Panhandle, then scoured through eastern Washington and down the Columbia Gorge to the Pacific Ocean.

Author: Victor R. Baker
Publisher: Geological Society of America
ISBN: 081372144X
Category : Floods
Languages : en
Pages : 90

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Author: Bruce N. Bjornstad
Publisher:
ISBN: 9781879628274
Category : Columbia Plateau
Languages : en
Pages : 307

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Author: Erica Medley
Publisher:
ISBN:
Category : Calcretes
Languages : en
Pages : 174

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Ancient cataclysmic floods were the Ice Age floods that left erosional and depositional features and preceded the Missoula floods (15-18,000 ka) in the Pacific Northwest of the United States (Allen et al., 2009). All previously studied ancient sites were visited (14) and new sites (11) were found; four Missoula Flood quarries were also visited; a total of 29 sites were studied in this thesis. The use of calcrete paleosols to provide relative age dates for flood deposits was analyzed in this thesis. Missoula Flood gravel pits were sampled in order to examine the degree of calcrete development in flood deposits of known ages. All of the Missoula Flood deposits tested contain Stage 1 calcrete soil development. Calcrete paleosols at sites with evidence for older floods were all analyzed. Eight sites have paleosols with Stage II development (3-12% CaCO3): Rulo Outcrop, Potholes Coulee, Leslie Road, Benge, E. Callaway Road, Collier Coulee, Palouse, and Connell. Five sites have paleosols with Stage II+ development (12-17% CaCO3): Brown Road, Leslie Road, Benge, Reese Coulee, and Connell. Fourteen sites have paleosols with Stage III development (17-35% CaCO3): The Dalles, Rulo Outcrop, Winans Road 1, Poplar Heights, Yakima Bluffs, Canal Outcrop, Othello Canal, Reese Coulee, Potholes Coulee, E. Callaway Road, Frenchmen Coulee, Macall, Ritzville, and East Connell. One site has a paleosol with Stage III+ development (35-50% CaCO3): Othello Canal. Ancient Cataclysmic flooding initiated in the Early Pleistocene, at least 1.5 Ma. Sixteen field sites show evidence for Early Pleistocene flooding, preserved in all six provinces: Othello Channels, Columbia River Gorge, Cheney-Palouse Scabland, Quincy Basin, Pasco Basin, and the Walla Walla Valley. There are 26 field sites with evidence for Middle Pleistocene flooding, present in all regions except Othello Channels. Eleven of those 26 sites also show evidence for Early Pleistocene floods. Evidence for Early and Middle Pleistocene floods is present over a wide distribution of elevations from 117 to 524 meters.

Author: Geological Survey (U S )
Publisher: Franklin Classics
ISBN: 9780342596058
Category :
Languages : en
Pages : 24

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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.