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Showing results for tags 'ejecta'.
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Isle of Skye Cretaceous-Paleocene Boundary Site Vandalized Meteorite hunters dig up 60 million-year-old site in Skye BBC News, 20 November 2018 https://www.bbc.com/news/uk-scotland-highlands-islands-46262827 Meteor strike site on Skye to be protected by security glass The Press and Journal, November 21, 2018 https://www.pressandjournal.co.uk/fp/news/islands/inner-hebrides/1613765/meteor-strike-site-on-skye-to-be-protected-by-security-glass/ Original news article: 60 million-year-old meteorite impact found on Skye BBC News, 14 December 2017 https://www.bbc.com/news/uk-scotland-highlands-islands-42351959 The paper is: Drake, S.M., Beard, A.D., Jones, A.P., Brown, D.J., Fortes, A.D., Millar, I.L., Carter, A., Baca, J. and Downes, H., 2017. Discovery of a meteoritic ejecta layer containing unmelted impactor fragments at the base of Paleocene lavas, Isle of Skye, Scotland. Geology, 46(2), pp.171-174. https://pubs.geoscienceworld.org/gsa/geology/article/46/2/171/525169 https://core.ac.uk/download/pdf/143474826.pdf https://www.researchgate.net/profile/Andrew_Beard https://www.researchgate.net/publication/321762044_Discovery_of_a_meteoritic_ejecta_layer_containing_unmelted_impactor_fragments_at_the_base_of_Paleocene_lavas_Isle_of_Skye_Scotland Yours, Paul H.
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From the album Invertebrates and plants(& misc.)
Debris, including micro glass "beads" from melted earth ejected into the air, from the KT boundary burn layer. Garfield county, Montana, Hell Creek formation. Late cretaceous (duh) *i added "misc." to this album because this didn't fit anywhere, and I thought it was really cool and should definitely be included somewhere. **There could even be vaporized dinosaur material as part of the glass and melted debris included. There definitely was plenty of it, but I guess realistically, unless it became evenly spread into the atmosphere and airborne debris, this is too small an amount of ejecta, and by percentage such a minuscule amount of vaporized dino, so sadly there probably isn't any. -
I came across a quite interesting field guide to impact craters of western Australia. It has detailed descriptions of several impact craters and associated impactites. It is: Western Australian impact craters - a field guide Field Excursion 20-29 August 2012 (Post Meteoritical Society Conference Excursion) Geological Survey of Western Australia http://museum.wa.gov.au/research/departments/earth-and-planetary-sciences/western-australian-impact-craters-field-guide http://museum.wa.gov.au/sites/default/files/Met-FT-2012.pdf Yours, Paul H.
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60-Million-Year-Old Meteorite Impact Ejecta Discovered on Scotland’s Isle of Skye
Oxytropidoceras posted a topic in Fossil News
Alien Minerals Discovered at Ancient Meteorite Strike Site in Scotland by Katherine Hignett, Newsweek, Dec. 15, 2017 http://www.newsweek.com/skye-meteorites-alien-mineral-749103 60-Million-Year-Old Meteorite Impact Zone Discovered on Scotland’s Isle of Skye, Sci News, December 15, 2017 http://www.sci-news.com/geology/meteorite-impact-scotlands-isle-of-skye-05539.html “A team of geologists has found 60 million-year-old ejecta from a previously unknown meteorite impact on the Isle of Skye, northwest Scotland. This is the first recorded mid-Paleocene impact event in the region and is coincident with the onset of magmatism in the British Paleogene Igneous Province.” The open-access paper is: Drake, S.M., A.D. Beard, A.P. Jones, D.J. Brown, A.D. Fortes, I.L. Millar, A. Carter, J. Baca, and H. Downes, 2017, Discovery of a meteoritic ejecta layer containing unmelted impactor fragments at the base of Paleocene lavas, Isle of Skye, Scotland. Geology. DOI: https://doi.org/10.1130/G39452.1 https://pubs.geoscienceworld.org/gsa/geology/article/525169/discovery-of-a-meteoritic-ejecta-layer-containing Yours, Paul- 1 reply
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- paleogene igneous province
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Impact Origin of Paleocene-Eocene Thermal Maximum (PETM) ?
Oxytropidoceras posted a topic in Fossil News
Glass bits, charcoal hint at 56-million-year-old space rock Impact. Timing coincides with period of rapid warming perhaps sparked by comet, Thomas Summer, Science News. https://www.sciencenews.org/article/glass-bits-charcoal-hint-56-million-year-old-space-rock-impact Schaller, M.F., and others, 2016, Distal impact ejecta at Paleocene-Eocene boundary sections on the Atlantic Margin. Geological Society of America annual meeting, Denver, September 27, 2016. Geological Society of America Abstracts with Programs. Vol. 48, No. 7. https://gsa.confex.com/gsa/2016AM/webprogram/Paper286189.html https://gsa.confex.com/gsa/2016AM/webprogram/Session40161.html Fung, M.K., and others, 2016, Widespread wildfires at the Paleocene Eocene boundary: Evidence from abundant charcoal preserved in the thick Marlboro Clay. Geological Society of America annual meeting, Denver, September 27, 2016. Geological Society of America Abstracts with Programs. Vol. 48, No. 7 https://gsa.confex.com/gsa/2016AM/webprogram/Paper284983.html https://gsa.confex.com/gsa/2016AM/webprogram/Session40161.html More papers at: https://gsa.confex.com/gsa/2016AM/webprogram/Session40161.html Yours, Paul H.
