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Showing results for tags 'volcanic ash'.
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Trying again with better pics i was told they were just rocks and i have a vivid imigination.
JustLucky posted a topic in Fossil ID
Heat and pressure? How much heat and pressure does it take to wrap volcanic ash in melted rock. Here is on i found next to what im cleaning. Here is a photo of the volcanic. Ash inside of the. Rock. Some of my photos are too big so I cannot post them.- 26 replies
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- appalachia bassin
- metamorphic rock
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Yellowstone Spawned Twin Super-eruptions Circa 640,000 BP
Oxytropidoceras posted a topic in Fossil News
Yellowstone spawned twin super-eruptions that altered global climate, Geological Society of America, October 26, 2017 https://www.sciencedaily.com/releases/2017/10/171026085804.htm http://www.geosociety.org/GSA/News/Releases/GSA/News/pr/2017/17-60.aspx Santa Barbara Basin Sediment Record of Volcanic Winters Triggered by Two Yellowstone Supervolcano Eruptions at 639 ka https://gsa.confex.com/gsa/2017AM/webprogram/Paper306169.html Yours, Paul H.-
- caldera eruption
- lava creek b tephra
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