[Rockhounds] The death of dinosaurs was all about the asteroid

[Paul]

Yale University. "In death of dinosaurs, it was all about the asteroid
-- not volcanoes." ScienceDaily. ScienceDaily, 16 January 2020.
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:

Hull, P.M., Bornemann, A., Penman, D.E., Henehan, M.J., Norris, R.D.,
Wilson, P.A., Blum, P., Alegret, L., Batenburg, S.J., Bown, P.R. and
Bralower, T.J., 2020. On impact and volcanism across the Cretaceous-
Paleogene boundary. Science, 367(6475), pp.266-272.
https://science.sciencemag.org/content/367/6475/266.abstract

Yours,

Paul H.