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rft.atitle Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034
rft.epage 785
rft.genre article
rft.issn 0036-8075
1095-9203
rft.issue 6121
rft.jtitle Science
rft.tpages 5
rft.pages 780-785
rft.pub American Association for the Advancement of Science
rft.date 2013-02-15
x.date 2013-02-15T00:00:00Z
rft.spage 780
rft.volume 339
abstract <p>We report data on the martian meteorite Northwest Africa (NWA) 7034, which shares some petrologic and geochemical characteristics with known martian meteorites of the SNC (i.e., shergottite, nakhlite, and chassignite) group, but also has some unique characteristics that would exclude it from that group. NWA 7034 is a geochemically enriched crustal rock compositionally similar to basalts and average martian crust measured by recent Rover and Orbiter missions. It formed 2.089 ± 0.081 billion years ago, during the early Amazonian epoch in Mars' geologic history. NWA 7034 has an order of magnitude more indigenous water than most SNC meteorites, with up to 6000 parts per million extraterrestrial H2O released during stepped heating. It also has bulk oxygen isotope values of Δ 17 O = 0.58 ± 0.05 per mil and a heat-released water oxygen isotope average value of Δ 17 O = 0.330 ± 0.011 per mil, suggesting the existence of multiple oxygen reservoirs on Mars.</p>
authors Array ( [rft.aulast] => Agee [rft.aufirst] => Carl B. )
Array ( [rft.aulast] => Wilson [rft.aufirst] => Nicole V. )
Array ( [rft.aulast] => McCubbin [rft.aufirst] => Francis M. )
Array ( [rft.aulast] => Ziegler [rft.aufirst] => Karen )
Array ( [rft.aulast] => Polyak [rft.aufirst] => Victor J. )
Array ( [rft.aulast] => Sharp [rft.aufirst] => Zachary D. )
Array ( [rft.aulast] => Asmerom [rft.aufirst] => Yemane )
Array ( [rft.aulast] => Nunn [rft.aufirst] => Morgan H. )
Array ( [rft.aulast] => Shaheen [rft.aufirst] => Robina )
Array ( [rft.aulast] => Thiemens [rft.aufirst] => Mark H. )
Array ( [rft.aulast] => Steele [rft.aufirst] => Andrew )
Array ( [rft.aulast] => Fogel [rft.aufirst] => Marilyn L. )
Array ( [rft.aulast] => Bowden [rft.aufirst] => Roxane )
Array ( [rft.aulast] => Glamoclija [rft.aufirst] => Mihaela )
Array ( [rft.aulast] => Zhang [rft.aufirst] => Zhisheng )
Array ( [rft.aulast] => Elardo [rft.aufirst] => Stephen M. )
doi 10.1126/science.1228858
languages eng
url http://dx.doi.org/10.1126/science.1228858
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author Agee, Carl B., Wilson, Nicole V., McCubbin, Francis M., Ziegler, Karen, Polyak, Victor J., Sharp, Zachary D., Asmerom, Yemane, Nunn, Morgan H., Shaheen, Robina, Thiemens, Mark H., Steele, Andrew, Fogel, Marilyn L., Bowden, Roxane, Glamoclija, Mihaela, Zhang, Zhisheng, Elardo, Stephen M.
author_facet Agee, Carl B., Wilson, Nicole V., McCubbin, Francis M., Ziegler, Karen, Polyak, Victor J., Sharp, Zachary D., Asmerom, Yemane, Nunn, Morgan H., Shaheen, Robina, Thiemens, Mark H., Steele, Andrew, Fogel, Marilyn L., Bowden, Roxane, Glamoclija, Mihaela, Zhang, Zhisheng, Elardo, Stephen M., Agee, Carl B., Wilson, Nicole V., McCubbin, Francis M., Ziegler, Karen, Polyak, Victor J., Sharp, Zachary D., Asmerom, Yemane, Nunn, Morgan H., Shaheen, Robina, Thiemens, Mark H., Steele, Andrew, Fogel, Marilyn L., Bowden, Roxane, Glamoclija, Mihaela, Zhang, Zhisheng, Elardo, Stephen M.
author_sort agee, carl b.
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container_issue 6121
container_start_page 780
container_title Science
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description <p>We report data on the martian meteorite Northwest Africa (NWA) 7034, which shares some petrologic and geochemical characteristics with known martian meteorites of the SNC (i.e., shergottite, nakhlite, and chassignite) group, but also has some unique characteristics that would exclude it from that group. NWA 7034 is a geochemically enriched crustal rock compositionally similar to basalts and average martian crust measured by recent Rover and Orbiter missions. It formed 2.089 ± 0.081 billion years ago, during the early Amazonian epoch in Mars' geologic history. NWA 7034 has an order of magnitude more indigenous water than most SNC meteorites, with up to 6000 parts per million extraterrestrial H2O released during stepped heating. It also has bulk oxygen isotope values of Δ 17 O = 0.58 ± 0.05 per mil and a heat-released water oxygen isotope average value of Δ 17 O = 0.330 ± 0.011 per mil, suggesting the existence of multiple oxygen reservoirs on Mars.</p>
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imprint American Association for the Advancement of Science, 2013
imprint_str_mv American Association for the Advancement of Science, 2013
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spelling Agee, Carl B. Wilson, Nicole V. McCubbin, Francis M. Ziegler, Karen Polyak, Victor J. Sharp, Zachary D. Asmerom, Yemane Nunn, Morgan H. Shaheen, Robina Thiemens, Mark H. Steele, Andrew Fogel, Marilyn L. Bowden, Roxane Glamoclija, Mihaela Zhang, Zhisheng Elardo, Stephen M. 0036-8075 1095-9203 American Association for the Advancement of Science RESEARCH ARTICLES http://dx.doi.org/10.1126/science.1228858 <p>We report data on the martian meteorite Northwest Africa (NWA) 7034, which shares some petrologic and geochemical characteristics with known martian meteorites of the SNC (i.e., shergottite, nakhlite, and chassignite) group, but also has some unique characteristics that would exclude it from that group. NWA 7034 is a geochemically enriched crustal rock compositionally similar to basalts and average martian crust measured by recent Rover and Orbiter missions. It formed 2.089 ± 0.081 billion years ago, during the early Amazonian epoch in Mars' geologic history. NWA 7034 has an order of magnitude more indigenous water than most SNC meteorites, with up to 6000 parts per million extraterrestrial H2O released during stepped heating. It also has bulk oxygen isotope values of Δ 17 O = 0.58 ± 0.05 per mil and a heat-released water oxygen isotope average value of Δ 17 O = 0.330 ± 0.011 per mil, suggesting the existence of multiple oxygen reservoirs on Mars.</p> Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034 Science
spellingShingle Agee, Carl B., Wilson, Nicole V., McCubbin, Francis M., Ziegler, Karen, Polyak, Victor J., Sharp, Zachary D., Asmerom, Yemane, Nunn, Morgan H., Shaheen, Robina, Thiemens, Mark H., Steele, Andrew, Fogel, Marilyn L., Bowden, Roxane, Glamoclija, Mihaela, Zhang, Zhisheng, Elardo, Stephen M., Science, Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034, RESEARCH ARTICLES
title Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034
title_full Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034
title_fullStr Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034
title_full_unstemmed Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034
title_short Unique Meteorite from Early Amazonian Mars: Water-Rich Basaltic Breccia Northwest Africa 7034
title_sort unique meteorite from early amazonian mars: water-rich basaltic breccia northwest africa 7034
topic RESEARCH ARTICLES
url http://dx.doi.org/10.1126/science.1228858