[Rockhounds] Late Pleistocene Natural Glass created by Natural Fire

[Paul]

  Below is a recent paper that a direct connection
with one line of evidence for the Younger Dryas Impact.

Roperch, P., Gattacceca, J., Valenzuela, M., Devouard,
B., Lorand, J.P., Arriagada, C., Rochette, P., Latorre, C.
and Beck, P., 2017. Surface vitrification caused by natural
fires in Late Pleistocene wetlands of the Atacama Desert.
Earth and Planetary Science Letters, 469, pp.15-26.
http://www.sciencedirect.com/science/article/pii/S0012821X17301887
https://hal-insu.archives-ouvertes.fr/insu-01514600/
http://meetingorganizer.copernicus.org/EGU2017/EGU2017-8946.pdf

Yours,

Paul H.

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