Distinguishing volcanic from impact glasses 06MAR2022

Distinguishing volcanic from impact glasses

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.
https://www.researchgate.net/publication/354386557_Distinguishing_volcanic_from_impact_glasses-The_case_of_the_Cali_glass_Colombia


More papers by Dr. Crosta at:
https://www.researchgate.net/profile/Alvaro-Crosta/research

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


Yours,

Paul H.

Geologic Names and Usage: A Guide to (North American) Stratigraphic Nomenclature 05MAR2022

Geologic Names and Usage: A Guide to (North American) Stratigraphic Nomenclature

Below is a recording of an interesting webinar about North American
Stratigraphic Nomenclature.

Geologic Names and Usage: A Guide to Stratigraphic Nomenclature
American Geosciences Institute, webinar, March 4, 2022
https://www.americangeosciences.org/webinars/geologic-names-usage-stratigraphic-nomenclature


Geologic Names and Usage: A Guide to Stratigraphic Nomenclature
Youtube version of above video
https://www.youtube.com/watch?v=O47p8xLkHmA


More videos are available from American Geosciences Institute's YouTube
channel
https://www.youtube.com/user/AmericanGeosciences/videos


There is also:

Geolex — Stratigraphic Resources
https://ngmdb.usgs.gov/Geolex/stratres

North American Commission on Stratigraphic Nomenclature,
2005. North American stratigraphic code. AAPG Bulletin, 89(11),
pp.1547-1591.
https://ngmdb.usgs.gov/Geolex/resources/docs/NACSN_Code_2021.pdf


Yours,

Paul H.

Satellite Spots Massive Asteroid Impact Crater in China 04MAR2022

Satellite Spots Massive Asteroid Impact Crater in China

Satellite Spots Massive Asteroid Impact Crater in China
Though missing some of its rim, the recently discovered
impact site is clearly recognizable from above.
By Isaac Schultz, Gizmodo,
https://gizmodo.com/satellite-spots-massive-asteroid-impact-crater-in-china-1848602154

Young Impact Crater Uncovered in Yilan, China
By Sara E. Pratt, SciTechDaily, March 3, 022
https://scitechdaily.com/young-impact-crater-uncovered-in-yilan-china/

Chen, M., Xie, X., Xiao, W. and Tan, D., 2019. Yilan crater, a
newly identified impact structure in northeast China. Chinese
Science Bulletin, 65(10), pp.948-954.
https://www.researchgate.net/publication/340299662_Yilan_crater_a_newly_identified_impact_structure_in_northeast_China

Chen, M., Koeberl, C., Tan, D., Ding, P., Xiao, W., Wang, N.,
Chen, Y. and Xie, X., 2021. Yilan crater, China: Evidence for
an origin by meteorite impact. Meteoritics & Planetary Science,
56(7), pp.1274-1292.
https://www.researchgate.net/publication/353551842_Yilan_crater_China_Evidence_for_an_origin_by_meteorite_impact


More papers by Xie Xiande, Chinese Academy of Sciences
https://www.researchgate.net/profile/Xie-Xiande


Yours,

Paul H.