WebMar 28, 2006 · The largest lake, however, was formed about 18,000-20,000 years ago, and its draining produced the last great flood. The enormous volume of water and the violent … http://columbiariverimages.com/Regions/Places/missoula_floods.html
Ice Age Floods - Lake Missoula - YouTube
WebMar 30, 2024 · Ice Age Floods of Change. At the end of the last Ice Age, 18,000 to 15,000 years ago, an ice dam in northern Idaho created Glacial Lake Missoula stretching 3,000 … http://columbiariverimages.com/Regions/Places/missoula_floods.html how to spread awareness about climate change
Missoula floods - Wikipedia
WebAbout 15,000 years ago, in the waning millennia of the Ice Age, a vast lake known as Glacial Lake Missoula suddenly burst through the ice dam that plugged it at one end. In the … The Missoula floods (also known as the Spokane floods or the Bretz floods or Bretz's floods) were cataclysmic glacial lake outburst floods that swept periodically across eastern Washington and down the Columbia River Gorge at the end of the last ice age. These floods were the result of periodic sudden … See more Geologist J Harlen Bretz first recognized evidence of the catastrophic floods, which he called the Spokane floods, in the 1920s. He was researching the Channeled Scablands in Eastern Washington, the Columbia Gorge, … See more As the water emerged from the Columbia River gorge, it backed up again at the 1 mile (1.6 km) wide narrows near Kalama, Washington. … See more • Soennichsen, John (2008). Bretz's Flood: The Remarkable Story of a Rebel Geologist and the World's Greatest Flood. Seattle, Wa.: Sasquatch Books. ISBN 978-1-57061-505-4. • Alt, David (2001) Glacial Lake Missoula and Its Humongous Floods (Mountain Press, … See more As the depth of the water in Lake Missoula increased, the pressure at the bottom of the ice dam increased enough to lower the freezing point of … See more • Giant current ripples – Depositional forms in channeled scablands • Glacial lake outburst flood – Type of outburst flood that occurs when the dam containing a glacial lake fails • Bonneville flood – Catastrophic flooding event in the last ice age See more • USGS Circular 1254 The World's Largest Floods, Past and Present: Their Causes and Magnitudes • PBS's NOVA (TV series): Mystery of the Megaflood See more WebApr 22, 2024 · Overall conclusions are that glacial Lake Missoula was extant and producing floods for at least 3–4 ky during 20–14 ka. At least ~75 floods preceded Mount St … reach essentials mouthwash reviews