Remobilization of crustal carbon may dominate volcanic arc emissions

The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is consider...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Mason, Emily [verfasserIn] Edmonds, Marie Turchyn, Alexandra V

Format:	Artikel
Sprache:	Englisch

Erschienen:	2017

Rechteinformationen:	Nutzungsrecht: © COPYRIGHT 2017 American Association for the Advancement of Science

Schlagwörter:	Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust

Übergeordnetes Werk:	Enthalten in: Science - Washington, DC : AAAS, American Assoc. for the Advancement of Science, 1883, 357(2017), 6348, Seite 290
Übergeordnetes Werk:	volume:357 ; year:2017 ; number:6348 ; pages:290

Links:	Volltext

DOI / URN:	10.1126/science.aan5049

Katalog-ID:	OLC1995981710

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520			\|a The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up.
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publishDate	2017
allfields	10.1126/science.aan5049 doi PQ20171125 (DE-627)OLC1995981710 (DE-599)GBVOLC1995981710 (PRQ)g598-17c4c5f80b35edb8e53610c934f4bfd2bf8adc323e6b3972cf9866593a2c8f590 (KEY)0063888920170000357634800290remobilizationofcrustalcarbonmaydominatevolcanicar DE-627 ger DE-627 rakwb eng 500 DE-600 LING fid Mason, Emily verfasserin aut Remobilization of crustal carbon may dominate volcanic arc emissions 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up. Nutzungsrecht: © COPYRIGHT 2017 American Association for the Advancement of Science Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust Edmonds, Marie oth Turchyn, Alexandra V oth Enthalten in Science Washington, DC : AAAS, American Assoc. for the Advancement of Science, 1883 357(2017), 6348, Seite 290 (DE-627)12931482X (DE-600)128410-1 (DE-576)014533189 0036-8075 nnns volume:357 year:2017 number:6348 pages:290 http://dx.doi.org/10.1126/science.aan5049 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-IBL SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_92 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_131 GBV_ILN_170 GBV_ILN_171 GBV_ILN_179 GBV_ILN_181 GBV_ILN_211 GBV_ILN_252 GBV_ILN_259 GBV_ILN_290 GBV_ILN_600 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4036 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4318 GBV_ILN_4320 GBV_ILN_4328 GBV_ILN_4333 AR 357 2017 6348 290
spelling	10.1126/science.aan5049 doi PQ20171125 (DE-627)OLC1995981710 (DE-599)GBVOLC1995981710 (PRQ)g598-17c4c5f80b35edb8e53610c934f4bfd2bf8adc323e6b3972cf9866593a2c8f590 (KEY)0063888920170000357634800290remobilizationofcrustalcarbonmaydominatevolcanicar DE-627 ger DE-627 rakwb eng 500 DE-600 LING fid Mason, Emily verfasserin aut Remobilization of crustal carbon may dominate volcanic arc emissions 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up. Nutzungsrecht: © COPYRIGHT 2017 American Association for the Advancement of Science Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust Edmonds, Marie oth Turchyn, Alexandra V oth Enthalten in Science Washington, DC : AAAS, American Assoc. for the Advancement of Science, 1883 357(2017), 6348, Seite 290 (DE-627)12931482X (DE-600)128410-1 (DE-576)014533189 0036-8075 nnns volume:357 year:2017 number:6348 pages:290 http://dx.doi.org/10.1126/science.aan5049 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-IBL SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_92 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_131 GBV_ILN_170 GBV_ILN_171 GBV_ILN_179 GBV_ILN_181 GBV_ILN_211 GBV_ILN_252 GBV_ILN_259 GBV_ILN_290 GBV_ILN_600 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4036 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4318 GBV_ILN_4320 GBV_ILN_4328 GBV_ILN_4333 AR 357 2017 6348 290
allfields_unstemmed	10.1126/science.aan5049 doi PQ20171125 (DE-627)OLC1995981710 (DE-599)GBVOLC1995981710 (PRQ)g598-17c4c5f80b35edb8e53610c934f4bfd2bf8adc323e6b3972cf9866593a2c8f590 (KEY)0063888920170000357634800290remobilizationofcrustalcarbonmaydominatevolcanicar DE-627 ger DE-627 rakwb eng 500 DE-600 LING fid Mason, Emily verfasserin aut Remobilization of crustal carbon may dominate volcanic arc emissions 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up. Nutzungsrecht: © COPYRIGHT 2017 American Association for the Advancement of Science Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust Edmonds, Marie oth Turchyn, Alexandra V oth Enthalten in Science Washington, DC : AAAS, American Assoc. for the Advancement of Science, 1883 357(2017), 6348, Seite 290 (DE-627)12931482X (DE-600)128410-1 (DE-576)014533189 0036-8075 nnns volume:357 year:2017 number:6348 pages:290 http://dx.doi.org/10.1126/science.aan5049 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-IBL SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_92 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_131 GBV_ILN_170 GBV_ILN_171 GBV_ILN_179 GBV_ILN_181 GBV_ILN_211 GBV_ILN_252 GBV_ILN_259 GBV_ILN_290 GBV_ILN_600 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4036 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4318 GBV_ILN_4320 GBV_ILN_4328 GBV_ILN_4333 AR 357 2017 6348 290
allfieldsGer	10.1126/science.aan5049 doi PQ20171125 (DE-627)OLC1995981710 (DE-599)GBVOLC1995981710 (PRQ)g598-17c4c5f80b35edb8e53610c934f4bfd2bf8adc323e6b3972cf9866593a2c8f590 (KEY)0063888920170000357634800290remobilizationofcrustalcarbonmaydominatevolcanicar DE-627 ger DE-627 rakwb eng 500 DE-600 LING fid Mason, Emily verfasserin aut Remobilization of crustal carbon may dominate volcanic arc emissions 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up. Nutzungsrecht: © COPYRIGHT 2017 American Association for the Advancement of Science Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust Edmonds, Marie oth Turchyn, Alexandra V oth Enthalten in Science Washington, DC : AAAS, American Assoc. for the Advancement of Science, 1883 357(2017), 6348, Seite 290 (DE-627)12931482X (DE-600)128410-1 (DE-576)014533189 0036-8075 nnns volume:357 year:2017 number:6348 pages:290 http://dx.doi.org/10.1126/science.aan5049 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-IBL SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_92 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_131 GBV_ILN_170 GBV_ILN_171 GBV_ILN_179 GBV_ILN_181 GBV_ILN_211 GBV_ILN_252 GBV_ILN_259 GBV_ILN_290 GBV_ILN_600 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4036 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4318 GBV_ILN_4320 GBV_ILN_4328 GBV_ILN_4333 AR 357 2017 6348 290
allfieldsSound	10.1126/science.aan5049 doi PQ20171125 (DE-627)OLC1995981710 (DE-599)GBVOLC1995981710 (PRQ)g598-17c4c5f80b35edb8e53610c934f4bfd2bf8adc323e6b3972cf9866593a2c8f590 (KEY)0063888920170000357634800290remobilizationofcrustalcarbonmaydominatevolcanicar DE-627 ger DE-627 rakwb eng 500 DE-600 LING fid Mason, Emily verfasserin aut Remobilization of crustal carbon may dominate volcanic arc emissions 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up. Nutzungsrecht: © COPYRIGHT 2017 American Association for the Advancement of Science Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust Edmonds, Marie oth Turchyn, Alexandra V oth Enthalten in Science Washington, DC : AAAS, American Assoc. for the Advancement of Science, 1883 357(2017), 6348, Seite 290 (DE-627)12931482X (DE-600)128410-1 (DE-576)014533189 0036-8075 nnns volume:357 year:2017 number:6348 pages:290 http://dx.doi.org/10.1126/science.aan5049 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC FID-LING SSG-OLC-PHY SSG-OLC-CHE SSG-OLC-MAT SSG-OLC-FOR SSG-OLC-SPO SSG-OLC-IBL SSG-OLC-PHA SSG-OLC-DE-84 SSG-OPC-FOR GBV_ILN_11 GBV_ILN_20 GBV_ILN_21 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_47 GBV_ILN_55 GBV_ILN_59 GBV_ILN_60 GBV_ILN_62 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_92 GBV_ILN_101 GBV_ILN_110 GBV_ILN_120 GBV_ILN_131 GBV_ILN_170 GBV_ILN_171 GBV_ILN_179 GBV_ILN_181 GBV_ILN_211 GBV_ILN_252 GBV_ILN_259 GBV_ILN_290 GBV_ILN_600 GBV_ILN_601 GBV_ILN_647 GBV_ILN_754 GBV_ILN_2001 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2012 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2018 GBV_ILN_2020 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2116 GBV_ILN_2120 GBV_ILN_2121 GBV_ILN_2173 GBV_ILN_2219 GBV_ILN_2221 GBV_ILN_2279 GBV_ILN_2286 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4036 GBV_ILN_4125 GBV_ILN_4219 GBV_ILN_4251 GBV_ILN_4277 GBV_ILN_4302 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4310 GBV_ILN_4314 GBV_ILN_4317 GBV_ILN_4318 GBV_ILN_4320 GBV_ILN_4328 GBV_ILN_4333 AR 357 2017 6348 290
language	English
source	Enthalten in Science 357(2017), 6348, Seite 290 volume:357 year:2017 number:6348 pages:290
sourceStr	Enthalten in Science 357(2017), 6348, Seite 290 volume:357 year:2017 number:6348 pages:290
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust
dewey-raw	500
isfreeaccess_bool	false
container_title	Science
authorswithroles_txt_mv	Mason, Emily @@aut@@ Edmonds, Marie @@oth@@ Turchyn, Alexandra V @@oth@@
publishDateDaySort_date	2017-01-01T00:00:00Z
hierarchy_top_id	12931482X
dewey-sort	3500
id	OLC1995981710
language_de	englisch
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author	Mason, Emily
spellingShingle	Mason, Emily ddc 500 fid LING misc Earth misc Geochemical cycles misc Volcanism misc Carbon misc Environmental aspects misc Observations misc Chemical properties misc Crust Remobilization of crustal carbon may dominate volcanic arc emissions
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topic_title	500 DE-600 LING fid Remobilization of crustal carbon may dominate volcanic arc emissions Earth Geochemical cycles Volcanism Carbon Environmental aspects Observations Chemical properties Crust
topic	ddc 500 fid LING misc Earth misc Geochemical cycles misc Volcanism misc Carbon misc Environmental aspects misc Observations misc Chemical properties misc Crust
topic_unstemmed	ddc 500 fid LING misc Earth misc Geochemical cycles misc Volcanism misc Carbon misc Environmental aspects misc Observations misc Chemical properties misc Crust
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title	Remobilization of crustal carbon may dominate volcanic arc emissions
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title_full	Remobilization of crustal carbon may dominate volcanic arc emissions
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title_sort	remobilization of crustal carbon may dominate volcanic arc emissions
title_auth	Remobilization of crustal carbon may dominate volcanic arc emissions
abstract	The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up.
abstractGer	The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up.
abstract_unstemmed	The flux of carbon into and out of Earth's surface environment has implications for Earth's climate and habitability. We compiled a global data set for carbon and helium isotopes from volcanic arcs and demonstrated that the carbon isotope composition of mean global volcanic gas is considerably heavier, at -3.8 to -4.6 per mil ([per thousand]), than the canonical mid-ocean ridge basalt value of -6.0[per thousand]. The largest volcanic emitters outgas carbon with higher [delta][sup.13]C and are located in mature continental arcs that have accreted carbonate platforms, indicating that reworking of crustal limestone is an important source of volcanic carbon. The fractional burial of organic carbon is lower than traditionally determined from a global carbon isotope mass balance and may have varied over geological time, modulated by super-continent formation and break-up.
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title_short	Remobilization of crustal carbon may dominate volcanic arc emissions
url	http://dx.doi.org/10.1126/science.aan5049
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author2	Edmonds, Marie Turchyn, Alexandra V
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up_date	2024-07-03T23:24:17.344Z
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