Search the Community
Showing results for tags 'impactite'.
Found 7 results
-
An icy mystery deep in Arctic Canada Phoebe Smith, BBC News, Geologic Marvels, April 4, 2022 Yours, Paul H.
-
-
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. More papers by Dr. Crosta at: 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. Yours, Paul H.
-
Subfossil confier remains modified by asteroid impact, Hiawatha Glacier, Greenland
Oxytropidoceras posted a topic in Fossil News
Garde, A.A., Søndergaard, A.S., Guvad, C., Dahl-Møller, J., Nehrke, G., Sanei, H., Weikusat, C., Funder, S., Kjær, K.H. and Larsen, N.K., 2020. Pleistocene organic matter modified by the Hiawatha impact, northwest Greenland. Geology, 48(9), pp.867-871. open access paper Supplemental Material: Pleistocene organic matter modified by the Hiawatha impact, northwest Greenland Yours, Paul H. -
Meteorite strikes may create unexpected form of silica Carnegie Institution for Science, August 26, 2020 The paper is: Sally June Tracy, Stefan J. Turneaure, Thomas S. Duffy. Structural response of α-quartz under plate-impact shock compression. Science Advances, 2020; 6 (35): eabb3913 Yours Paul H.
-
- 1
-
-
- hypervelocity impact
- impactite
- (and 6 more)
-
Reidite implies asteroid impact created Libyan Desert Glass
Oxytropidoceras posted a topic in Rocks & Minerals
Mystery of Libyan desert glass solved at last. Famous since the time of King Tut the origin of the scattered glass fragments has long puzzled researchers. Aaron Cavosie from Australia’s Curtin University explains. https://cosmosmagazine.com/archaeology/mystery-of-libyan-desert-glass-solved-at-last Planetary scientists unravel mystery of Egyptian desert glass by Curtin University, PyhsOrg https://phys.org/news/2019-05-planetary-scientists-unravel-mystery-egyptian.html https://www.sciencealert.com/exotic-glass-in-egypt-was-created-by-a-meteorite-impact-millions-of-years-ago 100-Year Mystery Solved, Yellow Glass In Egyptian Desert Caused By Meteorite Strike, Athena Chan, Tech Times https://www.techtimes.com/articles/243406/20190518/100-year-mystery-solved-yellow-glass-in-egyptian-desert-caused-by-meteorite-strike.htm The paper is: Cavosie, A.J. and Koeberl, C., 2019. Overestimation of threat from 100 Mt–class airbursts? High-pressure evidence from zircon in Libyan Desert Glass. Geology. DOI: 10.1130/G45974.1 https://pubs.geoscienceworld.org/gsa/geology/article/570318/Overestimation-of-threat-from-100-Mtclass yours, Paul H.- 2 replies
-
- 3
-
-
- airburst
- asteroid impact
- (and 6 more)
-
Here is something you don't see everyday.....or perhaps just once in a lifetime. I have been dealing with meteorites and tektites for about ten years, and I have never seen a piece of Libyan Desert Glass of this size. I recently acquired it and while doing some searching on the web, I failed to find a comparable specimen anywhere close to this size. This piece is about the size of football and weighs 5.6 kilograms. The largest on record is 25 kilograms. At the time I acquired this, it was likely the largest specimen on the private market. The first photo shows a close-up of the schlieren streaks in the piece - which are thought to be mineral traces of the original impactor that created this material. What this piece lacks in translucency, it makes up for in sheer mass.
- 5 replies
-
- 1
-
-
- impactite
- libyandesertglass
- (and 2 more)
