Ferrière, L., Crósta, A.P., Wegner, W., Libowitzky, E.,
Iwashita, F. and Koeberl, C., 2021. Distinguishing
volcanic from impact glasses—The case of the Cali glass
(Colombia). Geology, 49(12), pp.1421-1425.

[www.researchgate.net]

More papers by Dr. Crosta at:
[www.researchgate.net]

Another paper about impact glasses is:

Schultz, P.H., Harris, R.S., Perroud, S., Blanco, N. and
Tomlinson, A.J., 2022. Widespread glasses generated
by cometary fireballs during the late Pleistocene in the
Atacama Desert, Chile. Geology, 50(2), pp.205-209.
[pubs.geoscienceworld.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)