[meteorite-list] Meteorite Picture of the Day

2022-03-05 Thread Paul Swartz via Meteorite-list
Today''s Meteorite Picture of the Day: Knyahinya Contributed by: Jnmczurich http://www.tucsonmeteorites.com/mpodmain.asp?DD=03/06/2022 __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com

Re: [meteorite-list] Distinguishing volcanic from impact glasses

2022-03-05 Thread Jean Alix Barrat via Meteorite-list
To differentiate between volcanic glasses and impact glasses is a classical problem that has been addressed by those who have studied glass beads found in lunar soils. For the latter, the homogeneity of chemical compositions within a bead is a very good criterion (except for volatiles). The

[meteorite-list] Distinguishing volcanic from impact glasses

2022-03-05 Thread Paul via Meteorite-list
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.

Re: [meteorite-list] Geologic Names and Usage: A Guide to (North American) Stratigraphic Nomenclature

2022-03-05 Thread Paul via Meteorite-list
John Lutzon wrote: > Thank you Paul - great leads. You are welcome. 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.