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Geologist tells dramatic story


Last updated 3/13/2019 at 9:26am

Nick Zentner displays a slide of lava erupting in Iceland in 2014 to show how lava came from cracks in the Earth in this region to form the layers of basalt we see on the coulee walls. - Scott Hunter photos

Not only did dozens of gigantic floods shape the local landscape thousands of years ago, they raced across the solid-rock remains of hundreds of layers of lava flows that built the local bedrock millions of years earlier.

So said Geologist Nick Zentner to roughly 130 people at the Grand Coulee Dam Visitor Center on Saturday, brought to town by the Grand Coulee Dam Rotary Club.

Zentner, who hosts the video series "Nick on the Rocks," spoke for over an hour in the upstairs theater in the Visitor Center, presenting interested facts and a slideshow, then fielding questions from the audience th...

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