The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets
Determining the source(s) of hydrogen, carbon, and nitrogen accreted by Earth is important for understanding the origins of water and life and for constraining dynamical processes that operated during planet formation. Chondritic meteorites are asteroidal fragments that retain records of the first f...
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| Veröffentlicht in: | Science (American Association for the Advancement of Science) 2012-08, Vol.337 (6095), p.721-723 |
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| container_title | Science (American Association for the Advancement of Science) |
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| creator | Alexander, C. M. O'D. Bowden, R. Fogel, M. L. Howard, K. T. Herd, C. D. K. Nittler, L. R. |
| description | Determining the source(s) of hydrogen, carbon, and nitrogen accreted by Earth is important for understanding the origins of water and life and for constraining dynamical processes that operated during planet formation. Chondritic meteorites are asteroidal fragments that retain records of the first few million years of solar system history. The deuterium/hydrogen (D/H) values of water in carbonaceous chondrites are distinct from those in comets and Saturn's moon Enceladus, implying that they formed in a different region of the solar system, contrary to predictions of recent dynamical models. The D/H values of water in carbonaceous chondrites also argue against an influx of water ice from the outer solar system, which has been invoked to explain the nonsolar oxygen isotopic composition of the inner solar system. The bulk hydrogen and nitrogen isotopic compositions of CI chondrites suggest that they were the principal source of Earth's volatiles. |
| doi_str_mv | 10.1126/science.1223474 |
| format | Article |
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M. O'D. ; Bowden, R. ; Fogel, M. L. ; Howard, K. T. ; Herd, C. D. K. ; Nittler, L. R.</creator><creatorcontrib>Alexander, C. M. O'D. ; Bowden, R. ; Fogel, M. L. ; Howard, K. T. ; Herd, C. D. K. ; Nittler, L. R.</creatorcontrib><description>Determining the source(s) of hydrogen, carbon, and nitrogen accreted by Earth is important for understanding the origins of water and life and for constraining dynamical processes that operated during planet formation. Chondritic meteorites are asteroidal fragments that retain records of the first few million years of solar system history. The deuterium/hydrogen (D/H) values of water in carbonaceous chondrites are distinct from those in comets and Saturn's moon Enceladus, implying that they formed in a different region of the solar system, contrary to predictions of recent dynamical models. The D/H values of water in carbonaceous chondrites also argue against an influx of water ice from the outer solar system, which has been invoked to explain the nonsolar oxygen isotopic composition of the inner solar system. The bulk hydrogen and nitrogen isotopic compositions of CI chondrites suggest that they were the principal source of Earth's volatiles.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.1223474</identifier><identifier>PMID: 22798405</identifier><identifier>CODEN: SCIEAS</identifier><language>eng</language><publisher>Washington, DC: American Association for the Advancement of Science</publisher><subject>Asteroids ; Astronomy ; Carbon - analysis ; Carbon Isotopes - analysis ; Chemical elements ; Chondrites ; Comets ; Cosmochemistry. Extraterrestrial geology ; Deuterium - analysis ; Earth ; Earth (Planet) ; Earth sciences ; Earth, ocean, space ; Evolution, Planetary ; Exact sciences and technology ; Hydrogen ; Hydrogen - analysis ; Ice ; Meteorites ; Meteorites. Tectites. Impactites ; Meteors & meteorites ; Minor Planets ; Nitrogen ; Nitrogen - analysis ; Nitrogen Isotopes - analysis ; Oxygen Isotopes - analysis ; Planetology ; Planets ; Principals ; Saturnian satellites ; Solar composition ; Solar system ; Solar systems ; Water</subject><ispartof>Science (American Association for the Advancement of Science), 2012-08, Vol.337 (6095), p.721-723</ispartof><rights>Copyright © 2012 American Association for the Advancement of Science</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2012, American Association for the Advancement of Science</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a474t-5a13b906a89d46dcaaf63677e95e4f5906f33ef0c67993d4b2e10c2f15d436353</citedby><cites>FETCH-LOGICAL-a474t-5a13b906a89d46dcaaf63677e95e4f5906f33ef0c67993d4b2e10c2f15d436353</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/23268865$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/23268865$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,776,780,799,2870,2871,27903,27904,57995,58228</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=26264258$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22798405$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Alexander, C. M. O'D.</creatorcontrib><creatorcontrib>Bowden, R.</creatorcontrib><creatorcontrib>Fogel, M. L.</creatorcontrib><creatorcontrib>Howard, K. T.</creatorcontrib><creatorcontrib>Herd, C. D. K.</creatorcontrib><creatorcontrib>Nittler, L. R.</creatorcontrib><title>The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>Determining the source(s) of hydrogen, carbon, and nitrogen accreted by Earth is important for understanding the origins of water and life and for constraining dynamical processes that operated during planet formation. Chondritic meteorites are asteroidal fragments that retain records of the first few million years of solar system history. The deuterium/hydrogen (D/H) values of water in carbonaceous chondrites are distinct from those in comets and Saturn's moon Enceladus, implying that they formed in a different region of the solar system, contrary to predictions of recent dynamical models. The D/H values of water in carbonaceous chondrites also argue against an influx of water ice from the outer solar system, which has been invoked to explain the nonsolar oxygen isotopic composition of the inner solar system. The bulk hydrogen and nitrogen isotopic compositions of CI chondrites suggest that they were the principal source of Earth's volatiles.</description><subject>Asteroids</subject><subject>Astronomy</subject><subject>Carbon - analysis</subject><subject>Carbon Isotopes - analysis</subject><subject>Chemical elements</subject><subject>Chondrites</subject><subject>Comets</subject><subject>Cosmochemistry. 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M. O'D. ; Bowden, R. ; Fogel, M. L. ; Howard, K. T. ; Herd, C. D. K. ; Nittler, L. R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a474t-5a13b906a89d46dcaaf63677e95e4f5906f33ef0c67993d4b2e10c2f15d436353</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Asteroids</topic><topic>Astronomy</topic><topic>Carbon - analysis</topic><topic>Carbon Isotopes - analysis</topic><topic>Chemical elements</topic><topic>Chondrites</topic><topic>Comets</topic><topic>Cosmochemistry. Extraterrestrial geology</topic><topic>Deuterium - analysis</topic><topic>Earth</topic><topic>Earth (Planet)</topic><topic>Earth sciences</topic><topic>Earth, ocean, space</topic><topic>Evolution, Planetary</topic><topic>Exact sciences and technology</topic><topic>Hydrogen</topic><topic>Hydrogen - analysis</topic><topic>Ice</topic><topic>Meteorites</topic><topic>Meteorites. Tectites. 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| ispartof | Science (American Association for the Advancement of Science), 2012-08, Vol.337 (6095), p.721-723 |
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| source | MEDLINE; American Association for the Advancement of Science; Jstor Complete Legacy |
| subjects | Asteroids Astronomy Carbon - analysis Carbon Isotopes - analysis Chemical elements Chondrites Comets Cosmochemistry. Extraterrestrial geology Deuterium - analysis Earth Earth (Planet) Earth sciences Earth, ocean, space Evolution, Planetary Exact sciences and technology Hydrogen Hydrogen - analysis Ice Meteorites Meteorites. Tectites. Impactites Meteors & meteorites Minor Planets Nitrogen Nitrogen - analysis Nitrogen Isotopes - analysis Oxygen Isotopes - analysis Planetology Planets Principals Saturnian satellites Solar composition Solar system Solar systems Water |
| title | The Provenances of Asteroids, and Their Contributions to the Volatile Inventories of the Terrestrial Planets |
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