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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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Derouin, S. (2019), Sparks may reveal the nature of ash plumes, Eos, 100, https://doi.org/10.1029/2019EO136482. Published on 15 November 2019. https://eos.org/articles/sparks-may-reveal-the-nature-of-ash-plumes Scientists Recreated Volcanic Lightning by Blasting Ash Out of a Cannon Robin George Andrews, Gizmodo, November 29, 2019 https://gizmodo.com/scientists-recreated-volcanic-lightning-by-blasting-ash-1840068684 Volcanic ash sparks a new discovery, American Physical Society https://www.sciencedaily.com/releases/2019/10/191021082744.htm https://www.aps.org/units/dpp/meetings/vpr/2019/upload/2019-Von-der-Linden_Jens_APS-DPP-PR.pdf Yours, Paul H.
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Platinum anomalies, some of which are argued to be evidence of extraterrestrial impacts, have been found to be associated with high magnitude volcanic eruptions. Platinum is key in ancient volcanic related climate change University of Cincinnati, July 31, 2018 https://www.sciencedaily.com/releases/2018/07/180731092053.htm Platinum is key in ancient volcanic related climate change University of Cincinnati, July 31, 2018 https://www.sciencedaily.com/releases/2018/07/180731092053.htm Tankersley, K.B., Dunning, N.P., Owen, L.A., Huff, W.D., Park, J.H., Kim, C., Lentz, D.L. and Sparks-Stokes, D., 2018. Positive Platinum anomalies at three late Holocene high magnitude volcanic events in Western Hemisphere sediments. Scientific reports, 8(1), number. 11298. https://www.nature.com/articles/s41598-018-29741-8 https://www.researchgate.net/publication/326633921_Positive_Platinum_anomalies_at_three_late_Holocene_high_magnitude_volcanic_events_in_Western_Hemisphere_sediments "Pt anomalies in sediments over a broad geographic area indicate distinctive time-correlative atmospheric deposition rates of platinum-rich volcanic ash." a related paper: Soyol-Erdene, T.O., Huh, Y., Hong, S. and Hur, S.D., 2011. A 50-year record of platinum, iridium, and rhodium in Antarctic snow: volcanic and anthropogenic sources. Environmental science & technology, 45(14), pp. 5929-5935. https://pubs.acs.org/doi/abs/10.1021/es2005732 Yours, Paul H.
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- holocene
- paleoclimatology
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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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