New insights into the Great Dying, the Permo-Triassic mass extinction
Thursday 18 June 2020
New insights into the Great Dying, the Permo-Triassic mass extinction 18JUN2020
Friday 12 June 2020
Cryptoexplosive Structures in Missouri: Guidebook, 1965 12JUN2020
Cryptoexplosive Structures in Missouri: Guidebook, 1965
Thursday 4 June 2020
Evidence for the Ordovician Meteorite event in Oklahoma, USA 04JUN2020
Evidence for the Ordovician Meteorite event in Oklahoma, USA
Evidence for the Ordovician Meteorite event in Oklahoma, USA
https://www.researchgate.net/publication/337221532_Evidence_for_the_Ordovician_Meteorite_event_in_Oklahoma_USA
https://www.researchgate.net/profile/Elizabeth_Catlos
Yours,
Paul H.
Tuesday 2 June 2020
UV-B radiation blamed for Devonian-Carboniferous boundary terrestrial extinction 02JUN2020
UV-B radiation blamed for Devonian-Carboniferous boundary terrestrial extinction
End-Devonian Mass Extinction Caused by Erosion
of Ozone Layer, New Study Finds, Sci-News. May 28, 2020
http://www.sci-news.com/paleontology/end-devonian-mass-extinction-erosion-ozone-layer-08477.html
No asteroids needed: ancient mass extinction tied
to ozone loss, warming climate By Paul Voosen
Science News, May. 27, 2020
https://www.sciencemag.org/news/2020/05/no-asteroids-or-volcanoes-needed-ancient-mass-extinction-tied-ozone-loss-warming
The paper is:
John E. A. Marshall, Jon Lakin, Troth, and
Sarah M. Wallace-Johnson, 2020, UV-B
radiation was the Devonian-Carboniferous
boundary terrestrial extinction kill mechanism.
Science Advances 27 May 2020: Vol. 6, no. 22, eaba0768
DOI: 10.1126/sciadv.aba0768
https://advances.sciencemag.org/content/6/22/eaba0768
https://advances.sciencemag.org/content/6/22/eaba0768/tab-pdf
yours,
Paul H.