Search the Community
Showing results for tags 'chicxulub impact'.
Found 8 results
Late Cretaceous sturgeons from K/Pg impact deposits in North Dakota
Oxytropidoceras posted a topic in Fossil News'Hell fish' likely killed by dinosaur-ending asteroid is preserved in stunning detail Joanna Thompson, Live Science, October 12, 2022 Four exceptional fossils represent newly described species. https://www.livescience.com/3d-sturgeon-fossils-tanis The open access paper is: Hilton, E.J. and Grande, L., 2022. Late Cretaceous sturgeons (Acipenseridae) from North America, with two new species from the Tanis site in the Hell Creek Formation of North Dakota. Journal of Paleontology, pp.1-29. Another open access paper is: DePalma,
Modelling the Probable Global Tsunami from the Chicxulub Impact
Kane posted a topic in Fossil NewsThe news story: https://www.cbc.ca/radio/quirks/tsunami-chicxulub-impact-1.6608823 The full open access paper: Range, M. M., Arbic, B. K., Johnson, B. C., Moore, T. C., Titov, V., Adcroft, A. J., et al. (2022). The Chicxulub impact produced a powerful global tsunami. AGU Advances, 3, e2021AV000627. https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2021AV000627
New BBC Dinosaur Wildlife Documentary
Oxytropidoceras replied to Neanderthal Shaman's topic in Fossil NewsTanis: Fossil of dinosaur killed in asteroid strike found, scientists claim Jonathan Amos, BBC News, April 6, 2022 Scientists find fossil from THE DAY the dinosaurs died 66m years ago: Leg of Thescelosaurus was 'ripped off in aftermath' of huge asteroid strike that wiped out most species on Earth, The Daily Mail, April 7, 2022 Among the caims made is: "Experts found the fossilised leg of a dinosaur killed and what appears to be a fragment of the asteroid itself" Yours, Paul H.
Chicxulub impact tsunami megaripples in the subsurface of Louisiana
Oxytropidoceras posted a topic in Fossil NewsGiant tsunami from dino-killing asteroid impact revealed in fossilized ‘megaripples’ By Akila Raghavan, AAAS Science, Jul. 12, 2021 The paper is: Kinsland, G.L., Egedahl, K., Strong, M.A. and Ivy, R., 2021. Chicxulub impact tsunami megaripples in the subsurface of Louisiana: Imaged in petroleum industry seismic data. Earth and Planetary Science Letters, 570, no.117063. Yours, Paul H.
Explosive interaction of impact melt and seawater following the Chicxulub impact event
Oxytropidoceras posted a topic in Fossil NewsOsinski, G.R., Grieve, R.A., Hill, P.J., Simpson, S.L., Cockell, C., Christeson, G.L., Ebert, M., Gulick, S., Melosh, H.J., Riller, U. and Tikoo, S.M., 2020. Explosive interaction of impact melt and seawater following the Chicxulub impact event. Geology, 48(2), pp.108-112. https://www.researchgate.net/publication/337464107_Explosive_interaction_of_impact_melt_and_seawater_following_the_Chicxulub_impact_event https://www.researchgate.net/profile/Richard_Grieve/research Gulick, S.P., Bralower, T.J., Ormö, J., Hall, B., Grice, K., Schaefer
Chicxulub impact created massive melt sheet and hydrothermal system
Oxytropidoceras posted a topic in Fossil NewsDino-Killing Asteroid Spawned a Huge Magma Chamber That Lasted Millions of Years by George Dvorsky, Gizmodo, May 29, 2020 https://gizmodo.com/dino-killing-asteroid-spawned-a-huge-magma-chamber-that-1843752492 The open access paper is; D. A. Kring, M. Tikoo, Schmieder, Ulrich Riller, and many others. 2020. Probing the hydrothermal system of the Chicxulub impact crater. Science Advances 29 May 2020: Vol. 6, no. 22, eaaz3053 DOI: 10.1126/sciadv.aaz3053 https://advances.sciencemag.org/content/6/22/eaaz3053 Yours,
In death of dinosaurs, it was all about the asteroid
Oxytropidoceras posted a topic in Fossil NewsYale University. "In death of dinosaurs, it was all about the asteroid -- not volcanoes." ScienceDaily. ScienceDaily, 16 January 2020. https://www.sciencedaily.com/releases/2020/01/200116141708.htm Meteorite or Volcano? New Clues to the Dinosaurs’ Demise Twin calamities marked the end of the Cretaceous period, and scientists are presenting new evidence of which drove one of Earth’s great extinctions. New York Times, January 16, 2020 https://www.nytimes.com/2020/01/16/science/dinosaurs-extinction-meteorite-volcano.html The paper is:
Chicxulub Impact Cooled Earth's Climate More than Previously Thought
Oxytropidoceras posted a topic in Fossil NewsAsteroid impact plunged dinosaurs into catastrophic 'winter' By Jonathan Amos, BBC, October 31, 2017 http://www.bbc.com/news/science-environment-41825471 Dinosaur-killing asteroid impact cooled Earth's climate more than previously thought. PhysOrg, October 31, 2017 https://phys.org/news/2017-10-dinosaur-killing-asteroid-impact-cooled-earth.html The paper is: Artemieva, N., et al, 2017, Quantifying the Release of Climate-Active Gases by Large Meteorite Impacts With a Case Study of Chicxulub. Geophysical Research Letters (2017). D