Mysterious patches of glassy rock across Atacama Desert- Pica Glass and Atacamaites, Chile

Mysterious patches of glassy rock across Atacama Desert- Pica Glass and Atacamaites, Chile

In Mysterious patches of glassy rock across Atacama Desert,
https://www.mail-archive.com/meteorite-list@meteoritecentral.com/msg131785.html

Robert Verish asked:
>This story caused a big splash on the Internet back in late-2021, but I'm still looking for a published paper.
>Has anyone heard anything more about this speculated comet impact?

Here is a follow-up article (dated Nov. 8, 2021) regarding a reported finding of impact-melt glass from a suspect "comet impact in the Atacama Desert".
https://www.sci.news/space/atacama-desert-comet-10247.html

Here is the original CNN article:

https://www.cnn.com/2021/11/03/world/atacama-desert-glass-comet-scn/index.html

Below are some papers:

Gattacceca, J., Devouard, B., Barrat, J.A., Rochette, P., Balestrieri, M.L., Bigazzi, G., Ménard, G., Moustard, F., Dos Santos, E.,
Scorzelli, R. and Valenzuela, M., 2021. A 650 km2 Miocene strewnfield of splash-form impact glasses in the Atacama Desert,
Chile. Earth and Planetary Science Letters, 569, p.117049

Koeberl, C., Crósta, A.P. and Schulz, T., 2022, March. Geochemistry, Highly Siderophile Elements, and Re-Os Isotope Signatures of
Impact Glasses from the Atacama Desert, Chile. In 53rd Lunar and Planetary Science Conference (Vol. 2678, p. 2616).
https://www.hou.usra.edu/meetings/lpsc2022/pdf/2616.pdf

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.
https://hal.science/hal-02889687/file/Pica_Glass_Paleomag_data.pdf


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. open access
https://pubs.geoscienceworld.org/gsa/geology/article/50/2/205/609354/Widespread-glasses-generated-by-cometary-fireballs


Yours,

Paul H.

Two million-year long meteorite record found in Atacama Desert, Chile 25MAY2019

 Two million-year long meteorite record found in Atacama Desert, Chile

Oldest meteorite collection on Earth found in one

of the driest places, Geological Society of America

Sciencedaily, May 23, 2019

https://www.sciencedaily.com/releases/2019/05/190523130200.htm

Earth's Oldest Meteorite Collection Just Found

in the Driest Place on the Planet

By Brandon Specktor, May 24, 2019

https://www.livescience.com/65558-atacama-desert-has-meteors-for-days.html

The paper is:

A. Drouard, J. Gattacceca, A. Hutzler, P. Rochette, R.

Braucher, D. Bourl??s, ASTER Team, M. Gounelle, A.

Morbidelli, V. Debaille, M. Van Ginneken, M.

Valenzuela, Y. Quesnel, R. Martinez. The meteorite

flux of the past 2 m.y. recorded in the Atacama

Desert. Geology, May 22, 2019. Open Access

https://pubs.geoscienceworld.org/gsa/geology/article/570818/the-meteorite-flux-of-the-past-2-m-y-recorded-in

https://arxiv.org/abs/1904.12644

Yours,

Paul H.

New Younger Dryas impact Paper - Observations from Patagonia 17MAR2019

 New Younger Dryas impact Paper - Observations from Patagonia

Major cosmic impact 12,800 years ago

Geologic and paleontological evidence unearthed

in southern Chile supports the theory that a major

cosmic impact event occurred approximately

12,800 years ago, University of California -

Santa Barbara, March 13, 2019

https://www.sciencedaily.com/releases/2019/03/190313140616.htm

Pino, M., Abarzúa, A.M., Astorga, G., Martel-Cea, A.,

Cossio-Montecinos, N., Navarro, R.X., Lira, M.P.,

Labarca, R., LeCompte, M.A., Adedeji, V. and Moore,

C.R., 2019. Sedimentary record from Patagonia,

southern Chile supports cosmic-impact triggering

of biomass burning, climate change, and megafaunal

extinctions at 12.8 ka. Scientific Reports, 9(1), no.4413.

https://www.nature.com/articles/s41598-018-38089-y

Yours,

Paul H.

Meteorite Museum, Atacama desert, Northern Chile

Meteorite Museum, Atacama desert, Northern Chile

This Couple Built a Meteorite Museum in the
Middle of the Desert—And It's Awesome
by Jo Piazza, Yahoo News, Sept. 10, 2015
https://www.yahoo.com/travel/from-hobby-to-business-we-built-a-meteorite-128751142869.html

Yours,

Paul H.