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Science Corner Articles

How do we know how old Earth is?

By measuring radioactive elements in rocks from Earth and other parts of the solar system, scientists can develop a timeline of our planet’s early years. Earth is roughly 4.54 billion years old. In that time, it has seen continents form...

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About Volcanoes

View a gallery of diagrams for different volcano types, with glossaries The three major types of volcanoes—cinder cone, composite, and shield—each exhibit unique, lesser-known subterranean and surface features, including lava bombs, lahars, and spatter. Other types of volcanoes include lava...

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The Grand Coulee – A Floods Poem

THE GRAND COULEE – A Floods Poem THE GRAND COULEE Older than legends,Younger than mountains,The earth remembersThe Great Inland Sea. And that Sea emptiedIn torrential furyNever imaginedEven in dreams. Down through the canyons,Flood of all riversCarving the couleesTime, time again....

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Hells Canyon Caves Reveal When it was Cut

The origin story of Hells Canyon, North America’s deepest river gorge, has long been unclear to scientists. But new research estimates it formed about 2.1 million years ago when a dramatic flood event likely created a river over the deep...

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Ice In Puget Valley

ice in puget valley Q – My daughter and family live west of Dean Kreger Rd, above Silver Lake, west of Eatonville. I tease her that her yard is gravel held together with a little sand. I believe they are...

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Molten Mush Under Yellowstone Supervolcano

The mantle hotspot now under Yellowstone is thought to have been the source of the voluminous Columbia River Basalts that erupted from 17 to 6 million years ago as the North American continent passed over the hotspot, and that now...

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Quaternary

Quaternary—What is that??? Ice Age Floods Institute Members may have heard the term Quaternary during Chapter Presentations and Field Trips, or may have learned that the Quaternary Period represents the last 2.588 million years (~2.6 million years) of earth history,...

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Nepal Flood Disaster Reconstructed Minute by Minute

This is a reconstruction of the Nepal flood disaster. New satellite imagery and video analysis show the deadly Nepal floods began when part of a glacier near the Chinese border collapsed, triggering a debris flow that raced downstream at up...

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