New open access paper about mass extinctions.

Pankhurst, M.J., Stevenson, C.J. and Coldwell, B.C., 2021. Meteorites
that produce K-feldspar-rich ejecta blankets correspond to mass extinctions.
Journal of the Geological Society. 179, jgs2021-055, 1 December 2021,
[jgs.lyellcollection.org]
[doi.org]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)