[meteorite-list] Giant crystals of orthopyroxene from Shalka meteorite

[Paul]

Giant crystals of orthopyroxene from Shalka meteorite
https://twitter.com/TimCosmos/status/1238049722197295104
https://www.reddit.com/r/geology/comments/fheny5/giant_crystals_of_orthopyroxene_comprise_the/
https://www.mindat.org/loc-260347.html

An unrelated  article about technique used
in dating impact events,

Researchers unlock secrets of the past with
new international carbon dating standard
University of Sheffield, August 12, 2020
https://news.arizona.edu/story/researchers-unlock-secrets-past-new-international-carbon-dating-standard

"Radiocarbon dating is set to become more
accurate than ever after an international team
of scientists improved the technique for
assessing the age of historical objects."

Various open access papers about IntCal 20
can be found at:
https://www.cambridge.org/core/journals/radiocarbon/calibrations/intcal-20

Yours,

Paul H.