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Deep-mantle krypton reveals Earth's early accretion of carbonaceous matter.

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Τίτλος: Deep-mantle krypton reveals Earth's early accretion of carbonaceous matter.
Συγγραφείς: Péron S; Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA, USA. scperon@ucdavis.edu., Mukhopadhyay S; Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA, USA., Kurz MD; Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, USA., Graham DW; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, USA.
Πηγή: Nature [Nature] 2021 Dec; Vol. 600 (7889), pp. 462-467. Date of Electronic Publication: 2021 Dec 15.
Τύπος έκδοσης: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.
Γλώσσα: English
Στοιχεία περιοδικού: Publisher: Nature Publishing Group Country of Publication: England NLM ID: 0410462 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1476-4687 (Electronic) Linking ISSN: 00280836 NLM ISO Abbreviation: Nature Subsets: MEDLINE
Imprint Name(s): Publication: Basingstoke : Nature Publishing Group
Original Publication: London, Macmillan Journals ltd.
Ιατρικοί όροι (MeSH): Earth, Planet* , Evolution, Planetary*, Carbon/*analysis , Geologic Sediments/*chemistry , Krypton/*analysis, Atmosphere/chemistry ; Helium/analysis ; Isotopes/analysis ; Neon/analysis ; Nitrogen/analysis ; Tungsten/analysis ; Xenon/analysis ; Ecuador ; Evolution, Chemical ; Iceland ; Meteoroids ; Neutrons
Περίληψη: Establishing when, and from where, carbon, nitrogen and water were delivered to Earth is a fundamental objective in understanding the origin of habitable planets such as Earth. Yet, volatile delivery to Earth remains controversial1-5. Krypton isotopes provide insights on volatile delivery owing to their substantial isotopic variations among sources6-10, although pervasive atmospheric contamination has hampered analytical efforts. Here we present the full suite of krypton isotopes from the deep mantle of the Galápagos and Iceland plumes, which have the most primitive helium, neon and tungsten isotopic compositions11-16. Except for 86Kr, the krypton isotopic compositions are similar to a mixture of chondritic and atmospheric krypton. These results suggest early accretion of carbonaceous material by proto-Earth and rule out any combination of hydrodynamic loss with outgassing of the deep or shallow mantle to explain atmospheric noble gases. Unexpectedly, the deep-mantle sources have a deficit in the neutron-rich 86Kr relative to the average composition of carbonaceous meteorites, which suggests a nucleosynthetic anomaly. Although the relative depletion of neutron-rich isotopes on Earth compared with carbonaceous meteorites has been documented for a range of refractory elements1,17,18, our observations suggest such a depletion for a volatile element. This finding indicates that accretion of volatile and refractory elements occurred simultaneously, with krypton recording concomitant accretion of non-solar volatiles from more than one type of material, possibly including outer Solar System planetesimals.
(© 2021. The Author(s), under exclusive licence to Springer Nature Limited.)
References: Nature. 1988 Apr 21;332(6164):700-2. (PMID: 11542152)
Science. 2009 Dec 11;326(5959):1522-5. (PMID: 20007896)
Nature. 2019 Jan;565(7737):78-81. (PMID: 30518858)
Nature. 2020 Mar;579(7798):240-244. (PMID: 32161386)
Geochim Cosmochim Acta. 2014 Feb 15;127:326-347. (PMID: 29151613)
Science. 2000 May 12;288(5468):1036-9. (PMID: 10807571)
Science. 1999 Sep 24;285(5436):2115-8. (PMID: 10497127)
Sci Adv. 2018 Jul 04;4(7):eaar6297. (PMID: 29978041)
Science. 1998 May 8;280(5365):877-80. (PMID: 9572726)
Nature. 2006 May 11;441(7090):186-91. (PMID: 16688169)
Nature. 2017 Jan 25;541(7638):521-524. (PMID: 28128239)
Science. 2017 Jun 9;356(6342):1069-1072. (PMID: 28596364)
Nature. 2012 Jun 06;486(7401):101-4. (PMID: 22678288)
Nature. 2017 Nov 29;551(7682):614-618. (PMID: 29189777)
Nature. 2009 Oct 29;461(7268):1227-33. (PMID: 19865163)
Proc Natl Acad Sci U S A. 2020 Jun 23;117(25):13997-14004. (PMID: 32513744)
Nature. 2015 Sep 3;525(7567):95-9. (PMID: 26333468)
Science. 1998 Feb 20;279(5354):1178-81. (PMID: 9469801)
Sci Rep. 2020 Apr 2;10(1):5796. (PMID: 32242104)
Substance Nomenclature: 0 (Isotopes)
206GF3GB41 (Helium)
3H3U766W84 (Xenon)
4VB4Y46AHD (Neon)
5I8I620HVX (Krypton)
7440-44-0 (Carbon)
N762921K75 (Nitrogen)
V9306CXO6G (Tungsten)
Entry Date(s): Date Created: 20211216 Date Completed: 20220211 Latest Revision: 20261010
Update Code: 20261010
DOI: 10.1038/s41586-021-04092-z
PMID: 34912082
Βάση Δεδομένων: MEDLINE
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  – Url: https://dx.doi.org/doi:10.1038/s41586-021-04092-z
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Header DbId: cmedm
DbLabel: MEDLINE
An: 34912082
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Deep-mantle krypton reveals Earth's early accretion of carbonaceous matter.
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  Data: <searchLink fieldCode="AU" term="%22Péron+S%22">Péron S</searchLink>; Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA, USA. scperon@ucdavis.edu.<br /><searchLink fieldCode="AU" term="%22Mukhopadhyay+S%22">Mukhopadhyay S</searchLink>; Department of Earth and Planetary Sciences, University of California, Davis, Davis, CA, USA.<br /><searchLink fieldCode="AU" term="%22Kurz+MD%22">Kurz MD</searchLink>; Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA, USA.<br /><searchLink fieldCode="AU" term="%22Graham+DW%22">Graham DW</searchLink>; College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR, USA.
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  Data: <searchLink fieldCode="JN" term="%220410462%22">Nature</searchLink> [Nature] 2021 Dec; Vol. 600 (7889), pp. 462-467. <i>Date of Electronic Publication: </i>2021 Dec 15.
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  Data: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.
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  Data: English
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Nature+Publishing+Group%22">Nature Publishing Group </searchLink><i>Country of Publication: </i>England <i>NLM ID: </i>0410462 <i>Publication Model: </i>Print-Electronic <i>Cited Medium: </i>Internet <i>ISSN: </i>1476-4687 (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%2200280836%22">00280836 </searchLink><i>NLM ISO Abbreviation: </i>Nature <i>Subsets: </i>MEDLINE
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  Data: <i>Publication</i>: Basingstoke : Nature Publishing Group<br /><i>Original Publication</i>: London, Macmillan Journals ltd.
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  Data: <searchLink fieldCode="MM" term="%22Earth%2C+Planet%22">Earth, Planet*</searchLink> <br /><searchLink fieldCode="MM" term="%22Evolution%2C+Planetary%22">Evolution, Planetary*</searchLink><br /><searchLink fieldCode="MM" term="%22Carbon%22">Carbon</searchLink>/<searchLink fieldCode="MM" term="%22Carbon+analysis%22">*analysis</searchLink> <br /><searchLink fieldCode="MM" term="%22Geologic+Sediments%22">Geologic Sediments</searchLink>/<searchLink fieldCode="MM" term="%22Geologic+Sediments+chemistry%22">*chemistry</searchLink> <br /><searchLink fieldCode="MM" term="%22Krypton%22">Krypton</searchLink>/<searchLink fieldCode="MM" term="%22Krypton+analysis%22">*analysis</searchLink><br /><searchLink fieldCode="MH" term="%22Atmosphere%22">Atmosphere</searchLink>/<searchLink fieldCode="MH" term="%22Atmosphere+chemistry%22">chemistry</searchLink> ; <searchLink fieldCode="MH" term="%22Helium%22">Helium</searchLink>/<searchLink fieldCode="MH" term="%22Helium+analysis%22">analysis</searchLink> ; <searchLink fieldCode="MH" term="%22Isotopes%22">Isotopes</searchLink>/<searchLink fieldCode="MH" term="%22Isotopes+analysis%22">analysis</searchLink> ; <searchLink fieldCode="MH" term="%22Neon%22">Neon</searchLink>/<searchLink fieldCode="MH" term="%22Neon+analysis%22">analysis</searchLink> ; <searchLink fieldCode="MH" term="%22Nitrogen%22">Nitrogen</searchLink>/<searchLink fieldCode="MH" term="%22Nitrogen+analysis%22">analysis</searchLink> ; <searchLink fieldCode="MH" term="%22Tungsten%22">Tungsten</searchLink>/<searchLink fieldCode="MH" term="%22Tungsten+analysis%22">analysis</searchLink> ; <searchLink fieldCode="MH" term="%22Xenon%22">Xenon</searchLink>/<searchLink fieldCode="MH" term="%22Xenon+analysis%22">analysis</searchLink> ; <searchLink fieldCode="MH" term="%22Ecuador%22">Ecuador</searchLink> ; <searchLink fieldCode="MH" term="%22Evolution%2C+Chemical%22">Evolution, Chemical</searchLink> ; <searchLink fieldCode="MH" term="%22Iceland%22">Iceland</searchLink> ; <searchLink fieldCode="MH" term="%22Meteoroids%22">Meteoroids</searchLink> ; <searchLink fieldCode="MH" term="%22Neutrons%22">Neutrons</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Establishing when, and from where, carbon, nitrogen and water were delivered to Earth is a fundamental objective in understanding the origin of habitable planets such as Earth. Yet, volatile delivery to Earth remains controversial<superscript>1-5</superscript>. Krypton isotopes provide insights on volatile delivery owing to their substantial isotopic variations among sources<superscript>6-10</superscript>, although pervasive atmospheric contamination has hampered analytical efforts. Here we present the full suite of krypton isotopes from the deep mantle of the Galápagos and Iceland plumes, which have the most primitive helium, neon and tungsten isotopic compositions<superscript>11-16</superscript>. Except for <superscript>86</superscript>Kr, the krypton isotopic compositions are similar to a mixture of chondritic and atmospheric krypton. These results suggest early accretion of carbonaceous material by proto-Earth and rule out any combination of hydrodynamic loss with outgassing of the deep or shallow mantle to explain atmospheric noble gases. Unexpectedly, the deep-mantle sources have a deficit in the neutron-rich <superscript>86</superscript>Kr relative to the average composition of carbonaceous meteorites, which suggests a nucleosynthetic anomaly. Although the relative depletion of neutron-rich isotopes on Earth compared with carbonaceous meteorites has been documented for a range of refractory elements<superscript>1,17,18</superscript>, our observations suggest such a depletion for a volatile element. This finding indicates that accretion of volatile and refractory elements occurred simultaneously, with krypton recording concomitant accretion of non-solar volatiles from more than one type of material, possibly including outer Solar System planetesimals.<br /> (© 2021. The Author(s), under exclusive licence to Springer Nature Limited.)
– Name: Ref
  Label: References
  Group: RefInfo
  Data: Nature. 1988 Apr 21;332(6164):700-2. (PMID: <searchLink fieldCode="PM" term="%2211542152%22">11542152)</searchLink><br />Science. 2009 Dec 11;326(5959):1522-5. (PMID: <searchLink fieldCode="PM" term="%2220007896%22">20007896)</searchLink><br />Nature. 2019 Jan;565(7737):78-81. (PMID: <searchLink fieldCode="PM" term="%2230518858%22">30518858)</searchLink><br />Nature. 2020 Mar;579(7798):240-244. (PMID: <searchLink fieldCode="PM" term="%2232161386%22">32161386)</searchLink><br />Geochim Cosmochim Acta. 2014 Feb 15;127:326-347. (PMID: <searchLink fieldCode="PM" term="%2229151613%22">29151613)</searchLink><br />Science. 2000 May 12;288(5468):1036-9. (PMID: <searchLink fieldCode="PM" term="%2210807571%22">10807571)</searchLink><br />Science. 1999 Sep 24;285(5436):2115-8. (PMID: <searchLink fieldCode="PM" term="%2210497127%22">10497127)</searchLink><br />Sci Adv. 2018 Jul 04;4(7):eaar6297. (PMID: <searchLink fieldCode="PM" term="%2229978041%22">29978041)</searchLink><br />Science. 1998 May 8;280(5365):877-80. (PMID: <searchLink fieldCode="PM" term="%229572726%22">9572726)</searchLink><br />Nature. 2006 May 11;441(7090):186-91. (PMID: <searchLink fieldCode="PM" term="%2216688169%22">16688169)</searchLink><br />Nature. 2017 Jan 25;541(7638):521-524. (PMID: <searchLink fieldCode="PM" term="%2228128239%22">28128239)</searchLink><br />Science. 2017 Jun 9;356(6342):1069-1072. (PMID: <searchLink fieldCode="PM" term="%2228596364%22">28596364)</searchLink><br />Nature. 2012 Jun 06;486(7401):101-4. (PMID: <searchLink fieldCode="PM" term="%2222678288%22">22678288)</searchLink><br />Nature. 2017 Nov 29;551(7682):614-618. (PMID: <searchLink fieldCode="PM" term="%2229189777%22">29189777)</searchLink><br />Nature. 2009 Oct 29;461(7268):1227-33. (PMID: <searchLink fieldCode="PM" term="%2219865163%22">19865163)</searchLink><br />Proc Natl Acad Sci U S A. 2020 Jun 23;117(25):13997-14004. (PMID: <searchLink fieldCode="PM" term="%2232513744%22">32513744)</searchLink><br />Nature. 2015 Sep 3;525(7567):95-9. (PMID: <searchLink fieldCode="PM" term="%2226333468%22">26333468)</searchLink><br />Science. 1998 Feb 20;279(5354):1178-81. (PMID: <searchLink fieldCode="PM" term="%229469801%22">9469801)</searchLink><br />Sci Rep. 2020 Apr 2;10(1):5796. (PMID: <searchLink fieldCode="PM" term="%2232242104%22">32242104)</searchLink>
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        Type: general
      – SubjectFull: Helium analysis
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