Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario
Abstract– Microscopic meteoritic ablation spheres recently found on top of the Victoria Land in Transantarctic Mountains, and in the L2 Dome C and DF2691 Dome Fuji ice core layers document a major impact of a 10 8 kg (or larger) cosmic body in the Antarctic region about 480 kyr ago. Although of broa...
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crwiley:10.1111/maps.12011 2024-10-13T14:02:49+00:00 Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario Van GINNEKEN, M. SUAVET, C. CORDIER, C. FOLCO, L. ROCHETTE, P. SONZOGNI, C. PERCHIAZZI, N. 2012 http://dx.doi.org/10.1111/maps.12011 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmaps.12011 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maps.12011 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maps.12011 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Meteoritics & Planetary Science volume 47, issue 11, page 1738-1747 ISSN 1086-9379 1945-5100 journal-article 2012 crwiley https://doi.org/10.1111/maps.12011 2024-09-27T04:17:37Z Abstract– Microscopic meteoritic ablation spheres recently found on top of the Victoria Land in Transantarctic Mountains, and in the L2 Dome C and DF2691 Dome Fuji ice core layers document a major impact of a 10 8 kg (or larger) cosmic body in the Antarctic region about 480 kyr ago. Although of broadly chondritic composition, the exact nature of the impactor is unknown, and whether the impactor struck the Antarctic ice sheet or exploded in the atmosphere is a matter of debate. Based on oxygen isotope analyses of ablation spheres from the Transantarctic Mountains by means of IR‐laser fluorination coupled with mass spectrometry, we suggest that they represent the debris of an atmospheric airburst of a primitive asteroid of CV, CO, or CK composition, or a comet with composition similar to the short‐period comet 81P/Wild 2. Article in Journal/Newspaper Antarc* Antarctic ice core Ice Sheet Victoria Land Wiley Online Library Antarctic Dome Fuji ENVELOPE(39.700,39.700,-77.317,-77.317) The Antarctic Transantarctic Mountains Victoria Land Meteoritics & Planetary Science 47 11 1738 1747 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract– Microscopic meteoritic ablation spheres recently found on top of the Victoria Land in Transantarctic Mountains, and in the L2 Dome C and DF2691 Dome Fuji ice core layers document a major impact of a 10 8 kg (or larger) cosmic body in the Antarctic region about 480 kyr ago. Although of broadly chondritic composition, the exact nature of the impactor is unknown, and whether the impactor struck the Antarctic ice sheet or exploded in the atmosphere is a matter of debate. Based on oxygen isotope analyses of ablation spheres from the Transantarctic Mountains by means of IR‐laser fluorination coupled with mass spectrometry, we suggest that they represent the debris of an atmospheric airburst of a primitive asteroid of CV, CO, or CK composition, or a comet with composition similar to the short‐period comet 81P/Wild 2. |
format |
Article in Journal/Newspaper |
author |
Van GINNEKEN, M. SUAVET, C. CORDIER, C. FOLCO, L. ROCHETTE, P. SONZOGNI, C. PERCHIAZZI, N. |
spellingShingle |
Van GINNEKEN, M. SUAVET, C. CORDIER, C. FOLCO, L. ROCHETTE, P. SONZOGNI, C. PERCHIAZZI, N. Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario |
author_facet |
Van GINNEKEN, M. SUAVET, C. CORDIER, C. FOLCO, L. ROCHETTE, P. SONZOGNI, C. PERCHIAZZI, N. |
author_sort |
Van GINNEKEN, M. |
title |
Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario |
title_short |
Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario |
title_full |
Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario |
title_fullStr |
Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario |
title_full_unstemmed |
Oxygen isotope composition of meteoritic ablation debris from the Transantarctic Mountains: Constraining the parent body and implications for the impact scenario |
title_sort |
oxygen isotope composition of meteoritic ablation debris from the transantarctic mountains: constraining the parent body and implications for the impact scenario |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1111/maps.12011 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmaps.12011 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maps.12011 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maps.12011 |
long_lat |
ENVELOPE(39.700,39.700,-77.317,-77.317) |
geographic |
Antarctic Dome Fuji The Antarctic Transantarctic Mountains Victoria Land |
geographic_facet |
Antarctic Dome Fuji The Antarctic Transantarctic Mountains Victoria Land |
genre |
Antarc* Antarctic ice core Ice Sheet Victoria Land |
genre_facet |
Antarc* Antarctic ice core Ice Sheet Victoria Land |
op_source |
Meteoritics & Planetary Science volume 47, issue 11, page 1738-1747 ISSN 1086-9379 1945-5100 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/maps.12011 |
container_title |
Meteoritics & Planetary Science |
container_volume |
47 |
container_issue |
11 |
container_start_page |
1738 |
op_container_end_page |
1747 |
_version_ |
1812819273684353024 |