Temperatures of aqueous alteration on carbonaceous chondrite parent bodies
Aqueous alteration of primitive meteorites is among the earliest and the most widespread geological processes in the solar system. A better understanding of these processes would help us constrain the early evolution condition of the solar system and test models of thermal and chemical evolution of...
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ftcaltechauth:oai:authors.library.caltech.edu:8sdxe-6nr86 2024-09-15T18:38:30+00:00 Temperatures of aqueous alteration on carbonaceous chondrite parent bodies Guo, W. Perronnet, M. Zolensky, M. E. Eiler, J. M. 2007-08 https://doi.org/10.1111/j.1945-5100.2007.tb00601.x unknown Meteoritical Society oai:authors.library.caltech.edu:8sdxe-6nr86 eprintid:39560 https://doi.org/10.1111/j.1945-5100.2007.tb00601.x resolverid:CaltechAUTHORS:20130724-135800281 info:eu-repo/semantics/openAccess Other Meteoritics and Planetary Science, 42(S8), A61, (2007-08) info:eu-repo/semantics/article 2007 ftcaltechauth https://doi.org/10.1111/j.1945-5100.2007.tb00601.x 2024-08-06T15:34:59Z Aqueous alteration of primitive meteorites is among the earliest and the most widespread geological processes in the solar system. A better understanding of these processes would help us constrain the early evolution condition of the solar system and test models of thermal and chemical evolution of planetesimals. In this study, we extended our previous work on CM chondrites by further applying carbonate clumped isotope thermometry to other types of carbonaceous chondrites (GRO 95577, CR1; Orgueil, CI; and Tagish Lake, ungrouped type 2) to determine the conditions of their aqueous alteration. Carbonate in GRO 95577 is almost exclusively calcite; both Orgueil and Tagish Lake contain complex mixtures of several carbonates, which necessitated stepped phosphoric acid digestion to separately analyze calcite, dolomite/ankerite and breunnerite. CO_2 gases derived from these acid digestions are exceptionally rich in sulfur and organic contaminants. While so far no consistent evidence suggests their influences on Δ_(47) after extensive purification, we are continuing working on this issue. © 2007 The Meteoritical Society. Article first published online: 26 Jan. 2010. Published - Eiler_2007pA61.pdf Article in Journal/Newspaper Tagish Caltech Authors (California Institute of Technology) Meteoritics & Planetary Science 42 S8 |
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Caltech Authors (California Institute of Technology) |
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Aqueous alteration of primitive meteorites is among the earliest and the most widespread geological processes in the solar system. A better understanding of these processes would help us constrain the early evolution condition of the solar system and test models of thermal and chemical evolution of planetesimals. In this study, we extended our previous work on CM chondrites by further applying carbonate clumped isotope thermometry to other types of carbonaceous chondrites (GRO 95577, CR1; Orgueil, CI; and Tagish Lake, ungrouped type 2) to determine the conditions of their aqueous alteration. Carbonate in GRO 95577 is almost exclusively calcite; both Orgueil and Tagish Lake contain complex mixtures of several carbonates, which necessitated stepped phosphoric acid digestion to separately analyze calcite, dolomite/ankerite and breunnerite. CO_2 gases derived from these acid digestions are exceptionally rich in sulfur and organic contaminants. While so far no consistent evidence suggests their influences on Δ_(47) after extensive purification, we are continuing working on this issue. © 2007 The Meteoritical Society. Article first published online: 26 Jan. 2010. Published - Eiler_2007pA61.pdf |
format |
Article in Journal/Newspaper |
author |
Guo, W. Perronnet, M. Zolensky, M. E. Eiler, J. M. |
spellingShingle |
Guo, W. Perronnet, M. Zolensky, M. E. Eiler, J. M. Temperatures of aqueous alteration on carbonaceous chondrite parent bodies |
author_facet |
Guo, W. Perronnet, M. Zolensky, M. E. Eiler, J. M. |
author_sort |
Guo, W. |
title |
Temperatures of aqueous alteration on carbonaceous chondrite parent bodies |
title_short |
Temperatures of aqueous alteration on carbonaceous chondrite parent bodies |
title_full |
Temperatures of aqueous alteration on carbonaceous chondrite parent bodies |
title_fullStr |
Temperatures of aqueous alteration on carbonaceous chondrite parent bodies |
title_full_unstemmed |
Temperatures of aqueous alteration on carbonaceous chondrite parent bodies |
title_sort |
temperatures of aqueous alteration on carbonaceous chondrite parent bodies |
publisher |
Meteoritical Society |
publishDate |
2007 |
url |
https://doi.org/10.1111/j.1945-5100.2007.tb00601.x |
genre |
Tagish |
genre_facet |
Tagish |
op_source |
Meteoritics and Planetary Science, 42(S8), A61, (2007-08) |
op_relation |
oai:authors.library.caltech.edu:8sdxe-6nr86 eprintid:39560 https://doi.org/10.1111/j.1945-5100.2007.tb00601.x resolverid:CaltechAUTHORS:20130724-135800281 |
op_rights |
info:eu-repo/semantics/openAccess Other |
op_doi |
https://doi.org/10.1111/j.1945-5100.2007.tb00601.x |
container_title |
Meteoritics & Planetary Science |
container_volume |
42 |
container_issue |
S8 |
_version_ |
1810482894948270080 |