Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean

Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting durin...
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Autor*in:	Mills, Jennifer V [verfasserIn] Gomes, Maya L Kristall, Brian Sageman, Bradley B Jacobson, Andrew D Hurtgen, Matthew T

Format:	Artikel
Sprache:	Englisch

Erschienen:	2017

Rechteinformationen:	Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc.

Schlagwörter:	Ocean circulation Volcanism Research Oceanographic research

Übergeordnetes Werk:	Enthalten in: Geology - Boulder, Colo. : Soc., 1973, 45(2017), 5, Seite 475
Übergeordnetes Werk:	volume:45 ; year:2017 ; number:5 ; pages:475

Links:	Volltext

DOI / URN:	10.1130/G38667.1

Katalog-ID:	OLC1995069663

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520			\|a Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change.
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spelling	10.1130/G38667.1 doi PQ20170721 (DE-627)OLC1995069663 (DE-599)GBVOLC1995069663 (PRQ)g597-719a20cf84730e0fc2b2d636c3038ca0cc7282b0d25e27384faf25782791ef110 (KEY)0163754120170000045000500475massivevolcanismevaporitedepositionandthechemicale DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Mills, Jennifer V verfasserin aut Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Ocean circulation Volcanism Research Oceanographic research Gomes, Maya L oth Kristall, Brian oth Sageman, Bradley B oth Jacobson, Andrew D oth Hurtgen, Matthew T oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 5, Seite 475 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:5 pages:475 http://dx.doi.org/10.1130/G38667.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 5 475
allfields_unstemmed	10.1130/G38667.1 doi PQ20170721 (DE-627)OLC1995069663 (DE-599)GBVOLC1995069663 (PRQ)g597-719a20cf84730e0fc2b2d636c3038ca0cc7282b0d25e27384faf25782791ef110 (KEY)0163754120170000045000500475massivevolcanismevaporitedepositionandthechemicale DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Mills, Jennifer V verfasserin aut Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Ocean circulation Volcanism Research Oceanographic research Gomes, Maya L oth Kristall, Brian oth Sageman, Bradley B oth Jacobson, Andrew D oth Hurtgen, Matthew T oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 5, Seite 475 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:5 pages:475 http://dx.doi.org/10.1130/G38667.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 5 475
allfieldsGer	10.1130/G38667.1 doi PQ20170721 (DE-627)OLC1995069663 (DE-599)GBVOLC1995069663 (PRQ)g597-719a20cf84730e0fc2b2d636c3038ca0cc7282b0d25e27384faf25782791ef110 (KEY)0163754120170000045000500475massivevolcanismevaporitedepositionandthechemicale DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Mills, Jennifer V verfasserin aut Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Ocean circulation Volcanism Research Oceanographic research Gomes, Maya L oth Kristall, Brian oth Sageman, Bradley B oth Jacobson, Andrew D oth Hurtgen, Matthew T oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 5, Seite 475 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:5 pages:475 http://dx.doi.org/10.1130/G38667.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 5 475
allfieldsSound	10.1130/G38667.1 doi PQ20170721 (DE-627)OLC1995069663 (DE-599)GBVOLC1995069663 (PRQ)g597-719a20cf84730e0fc2b2d636c3038ca0cc7282b0d25e27384faf25782791ef110 (KEY)0163754120170000045000500475massivevolcanismevaporitedepositionandthechemicale DE-627 ger DE-627 rakwb eng 550 DNB 38.10 bkl Mills, Jennifer V verfasserin aut Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean 2017 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change. Nutzungsrecht: © COPYRIGHT 2017 Geological Society of America, Inc. Ocean circulation Volcanism Research Oceanographic research Gomes, Maya L oth Kristall, Brian oth Sageman, Bradley B oth Jacobson, Andrew D oth Hurtgen, Matthew T oth Enthalten in Geology Boulder, Colo. : Soc., 1973 45(2017), 5, Seite 475 (DE-627)129391921 (DE-600)184929-3 (DE-576)014777045 0091-7613 nnns volume:45 year:2017 number:5 pages:475 http://dx.doi.org/10.1130/G38667.1 Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-GEO SSG-OPC-GGO GBV_ILN_21 GBV_ILN_120 GBV_ILN_154 GBV_ILN_2011 GBV_ILN_2015 GBV_ILN_4046 GBV_ILN_4112 GBV_ILN_4323 38.10 AVZ AR 45 2017 5 475
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spellingShingle	Mills, Jennifer V ddc 550 bkl 38.10 misc Ocean circulation misc Volcanism misc Research misc Oceanographic research Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean
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topic_title	550 DNB 38.10 bkl Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean Ocean circulation Volcanism Research Oceanographic research
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title	Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean
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title_full	Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean
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title_sort	massive volcanism, evaporite deposition, and the chemical evolution of the early cretaceous ocean
title_auth	Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean
abstract	Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change.
abstractGer	Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change.
abstract_unstemmed	Early Cretaceous (145-100 Ma) rocks record a ~5 [per thousand] negative shift in the sulfur isotope composition of marine sulfate, the largest shift observed over the past 130 m.y. Two hypotheses have been proposed to explain this shift: (1) massive evaporite deposition associated with rifting during opening of the South Atlantic and (2) increased inputs of volcanically derived sulfur due to eruption of large igneous provinces. Each process produces a very different impact on marine sulfate concentrations, which in turn affects several biogeochemical phenomena that regulate the global carbon cycle and climate. Here we present sulfur isotope data from Resolution Guyot, Mid-Pacific Mountains (North Pacific Ocean), that track sympathetically with strontium isotope records through the ~5 [per thousand] negative sulfur isotope shift. We employ a linked sulfur-strontium isotope mass-balance model to identify the mechanisms driving the sulfur isotope evolution of the Cretaceous ocean. The model only reproduces the coupled negative sulfur and strontium isotope shifts when both hydrothermal and weathering fluxes increase. Our results indicate that marine sulfate concentrations increased significantly during the negative sulfur isotope shift and that enhanced hydrothermal and weathering input fluxes to the ocean played a dominant role in regulating the marine sulfur cycle and C[O.sub.2] exchange in the atmosphere-ocean system during this interval of rapid biogeochemical change.
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title_short	Massive volcanism, evaporite deposition, and the chemical evolution of the Early Cretaceous ocean
url	http://dx.doi.org/10.1130/G38667.1
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author2	Gomes, Maya L Kristall, Brian Sageman, Bradley B Jacobson, Andrew D Hurtgen, Matthew T
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up_date	2024-07-03T20:21:11.841Z
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