Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign?
The primary mineral assemblages and initial ^(26)Al/^(27)Al ratios of rare calcium-aluminum–rich inclusions (CAIs) from enstatite (E) chondrites are similar to those of CAIs from other chondrite classes. CAIs from all chondrite classes formed under oxidizing conditions that are much different from...
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ftcaltechauth:oai:authors.library.caltech.edu:erf20-r3d37 2024-09-15T17:46:04+00:00 Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? Guan, Yunbin Huss, Gary R. MacPherson, Glenn J. Wasserburg, Gerald J. 2000-08-25 https://doi.org/10.1126/science.289.5483.1330 unknown American Association for the Advancement of Science https://doi.org/10.1126/science.289.5483.1330 oai:authors.library.caltech.edu:erf20-r3d37 eprintid:43090 resolverid:CaltechAUTHORS:20131219-100635152 info:eu-repo/semantics/closedAccess Other Science, 289(5483), 1330-1333, (2000-08-25) info:eu-repo/semantics/article 2000 ftcaltechauth https://doi.org/10.1126/science.289.5483.1330 2024-08-06T15:34:58Z The primary mineral assemblages and initial ^(26)Al/^(27)Al ratios of rare calcium-aluminum–rich inclusions (CAIs) from enstatite (E) chondrites are similar to those of CAIs from other chondrite classes. CAIs from all chondrite classes formed under oxidizing conditions that are much different from the reducing conditions under which the E chondrites formed. Either CAIs formed at an earlier, more oxidizing epoch in the region where E chondrites ultimately formed, or they formed at a different place in the solar nebula and were transported into the E chondrite formation region. © 2000 American Association for the Advancement of Science. 19 April 2000; accepted 15 June 2000. Supported by NASA grants NAG5-7396 (G.J.M.), NAG5-4083 (G.J.W.), and NAG5-8158 (G.R.H.). We thank the Antarctic Meteorite Working Group and NASA Johnson Space Center for providing the Antarctic meteorite thin sections. Caltech Division Contribution 8652 (1044). Article in Journal/Newspaper Antarc* Antarctic Caltech Authors (California Institute of Technology) Science 289 5483 1330 1333 |
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The primary mineral assemblages and initial ^(26)Al/^(27)Al ratios of rare calcium-aluminum–rich inclusions (CAIs) from enstatite (E) chondrites are similar to those of CAIs from other chondrite classes. CAIs from all chondrite classes formed under oxidizing conditions that are much different from the reducing conditions under which the E chondrites formed. Either CAIs formed at an earlier, more oxidizing epoch in the region where E chondrites ultimately formed, or they formed at a different place in the solar nebula and were transported into the E chondrite formation region. © 2000 American Association for the Advancement of Science. 19 April 2000; accepted 15 June 2000. Supported by NASA grants NAG5-7396 (G.J.M.), NAG5-4083 (G.J.W.), and NAG5-8158 (G.R.H.). We thank the Antarctic Meteorite Working Group and NASA Johnson Space Center for providing the Antarctic meteorite thin sections. Caltech Division Contribution 8652 (1044). |
format |
Article in Journal/Newspaper |
author |
Guan, Yunbin Huss, Gary R. MacPherson, Glenn J. Wasserburg, Gerald J. |
spellingShingle |
Guan, Yunbin Huss, Gary R. MacPherson, Glenn J. Wasserburg, Gerald J. Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? |
author_facet |
Guan, Yunbin Huss, Gary R. MacPherson, Glenn J. Wasserburg, Gerald J. |
author_sort |
Guan, Yunbin |
title |
Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? |
title_short |
Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? |
title_full |
Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? |
title_fullStr |
Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? |
title_full_unstemmed |
Calcium-Aluminum-Rich Inclusions from Enstatite Chondrites: Indigenous or Foreign? |
title_sort |
calcium-aluminum-rich inclusions from enstatite chondrites: indigenous or foreign? |
publisher |
American Association for the Advancement of Science |
publishDate |
2000 |
url |
https://doi.org/10.1126/science.289.5483.1330 |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Science, 289(5483), 1330-1333, (2000-08-25) |
op_relation |
https://doi.org/10.1126/science.289.5483.1330 oai:authors.library.caltech.edu:erf20-r3d37 eprintid:43090 resolverid:CaltechAUTHORS:20131219-100635152 |
op_rights |
info:eu-repo/semantics/closedAccess Other |
op_doi |
https://doi.org/10.1126/science.289.5483.1330 |
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Science |
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289 |
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5483 |
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1330 |
op_container_end_page |
1333 |
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1810494029850214400 |