Saturday, May 16, 2020

Cratering - Marking the 40th Anniversary of the Mt. St. Helens Eruption

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Photomural image by Richard Gordon Bowen, May 18, 1980. Courtesy of the Bowen Family. May 18, 1980. If most people remember this date at...
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Thursday, May 07, 2020

More Cratering in Northern Arizona - Rattlesnake Maar

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Photo by Dawn Kish - From the top of the Rattlesnake scoria cone ; the reddish arc behind the figure is Rattlesnake maar An unusual and ...
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Thursday, April 30, 2020

Moon Crater, San Francisco Volcanic Field, Northern Arizona

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The next destination in the series,  "We Are Cratering in Northern Arizona"  is Moon Crater. This volcanic center is labeled as Cr...
Sunday, April 26, 2020

We Are Cratering In Northern Arizona!

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Winter photo of SP Crater, the 4th youngest cone and crater in the San Francisco Volcanic Field. It has recently been re-re-dated at about...
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Monday, April 13, 2020

Announcing the Wayne and Helen Ranney Geoscience Educator Scholarship at Northern Arizona University

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I have had the pleasure of traveling with  many readers of this blog on geologic adventures across the globe, from Arizona to Zimbabwe, fr...
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Saturday, April 11, 2020

Grand Canyon Geology on Facebook Live - April 9, 2020

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Some of you may have been able to tune in to a Facebook Live session I was part of on Thursday April 9, 2020. If you were not able to join u...
Wednesday, April 08, 2020

Facebook Live Session on Grand Canyon Geology!

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Do you like the Grand Canyon? Do you have an interest in geology and Earth history? Or perhaps you are just looking for something to do duri...
Tuesday, March 24, 2020

The Tinajas Altas Mountains and Cabeza Prieta National Wildlife Refuge

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“I have always loved the desert. One sits down on a desert sand dune, sees nothing, hears nothing. Yet through the silence something throbs ...
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