Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15
Carbon and oxygen isotopic compositions of authigenic carbonate nodules or layers reflect the diagenetic conditions at the time of nodule growth. The shallowest samples of carbonate nodules and dissolved inorganic carbon of pore water samples beneath the sulfate reduction zone (0-160 meters below se...
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ftdatacite:10.1594/pangaea.780617 2023-05-15T13:51:18+02:00 Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15 Claypool, George E Lorenson, Thomas D Johnson, Craig A 2003 application/zip https://dx.doi.org/10.1594/pangaea.780617 https://doi.pangaea.de/10.1594/PANGAEA.780617 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.2973/odp.proc.sr.188.004.2003 Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 CC-BY Composite Core Drilling/drill rig Leg188 Joides Resolution Ocean Drilling Program ODP Supplementary Collection of Datasets Collection article 2003 ftdatacite https://doi.org/10.1594/pangaea.780617 https://doi.org/10.2973/odp.proc.sr.188.004.2003 2022-02-08T16:24:46Z Carbon and oxygen isotopic compositions of authigenic carbonate nodules or layers reflect the diagenetic conditions at the time of nodule growth. The shallowest samples of carbonate nodules and dissolved inorganic carbon of pore water samples beneath the sulfate reduction zone (0-160 meters below seafloor [mbsf]) at Site 1165 have extremely negative d13C values (-50 per mil and -62 per mil, respectively). These negative d13C values indicate nodule formation in association with anaerobic methane oxidation coupled with sulfate reduction. The 34S of residual sulfate at Site 1165 shows only minor 34S enrichment (+6 per mil), even with complete sulfate reduction. This small degree of apparent 34S enrichment is due to extreme "open-system" sulfate reduction, with sulfate abundantly resupplied by diffusion from overlying seawater.Ten calcite nodules from Site 1165 contain minor quartz and feldspar and have d13C values ranging from -49.7 per mil to -8.2 per mil. The nodules with the most negative d13C values currently are at depths of 273 to 350 mbsf and must have precipitated from carbonate largely derived from subsurface anaerobic methane oxidation. The processes of sulfate reduction coupled with methane oxidation in sediments of Hole 1165B are indicated by characteristic concentration and isotopic (d34S and d13C) profiles of dissolved sulfate and bicarbonate.Three siderite nodules from Site 1166 contain feldspar and mica and one has significant carbonate-apatite. The siderite has d13C values ranging from -15.3 per mil to -7.6 per mil. These siderite nodules probably represent early diagenetic carbonate precipitation during microbial methanogenesis. Article in Journal/Newspaper Antarc* Antarctica Prydz Bay DataCite Metadata Store (German National Library of Science and Technology) Prydz Bay |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Composite Core Drilling/drill rig Leg188 Joides Resolution Ocean Drilling Program ODP |
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Composite Core Drilling/drill rig Leg188 Joides Resolution Ocean Drilling Program ODP Claypool, George E Lorenson, Thomas D Johnson, Craig A Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15 |
topic_facet |
Composite Core Drilling/drill rig Leg188 Joides Resolution Ocean Drilling Program ODP |
description |
Carbon and oxygen isotopic compositions of authigenic carbonate nodules or layers reflect the diagenetic conditions at the time of nodule growth. The shallowest samples of carbonate nodules and dissolved inorganic carbon of pore water samples beneath the sulfate reduction zone (0-160 meters below seafloor [mbsf]) at Site 1165 have extremely negative d13C values (-50 per mil and -62 per mil, respectively). These negative d13C values indicate nodule formation in association with anaerobic methane oxidation coupled with sulfate reduction. The 34S of residual sulfate at Site 1165 shows only minor 34S enrichment (+6 per mil), even with complete sulfate reduction. This small degree of apparent 34S enrichment is due to extreme "open-system" sulfate reduction, with sulfate abundantly resupplied by diffusion from overlying seawater.Ten calcite nodules from Site 1165 contain minor quartz and feldspar and have d13C values ranging from -49.7 per mil to -8.2 per mil. The nodules with the most negative d13C values currently are at depths of 273 to 350 mbsf and must have precipitated from carbonate largely derived from subsurface anaerobic methane oxidation. The processes of sulfate reduction coupled with methane oxidation in sediments of Hole 1165B are indicated by characteristic concentration and isotopic (d34S and d13C) profiles of dissolved sulfate and bicarbonate.Three siderite nodules from Site 1166 contain feldspar and mica and one has significant carbonate-apatite. The siderite has d13C values ranging from -15.3 per mil to -7.6 per mil. These siderite nodules probably represent early diagenetic carbonate precipitation during microbial methanogenesis. |
format |
Article in Journal/Newspaper |
author |
Claypool, George E Lorenson, Thomas D Johnson, Craig A |
author_facet |
Claypool, George E Lorenson, Thomas D Johnson, Craig A |
author_sort |
Claypool, George E |
title |
Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15 |
title_short |
Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15 |
title_full |
Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15 |
title_fullStr |
Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15 |
title_full_unstemmed |
Sulphate and d34S in pore waters and δ¹³C, δ¹⁸O and mineral composition of carbonate nodules from ODP Leg 188 sites, supplement to: Claypool, George E; Lorenson, Thomas D; Johnson, Craig A (2003): Authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, ODP Leg 188 Sites 1165 and 1166, offshore Antarctica (Prydz Bay). In: Cooper, AK; O'Brien, PE; Richter, C (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 188, 1-15 |
title_sort |
sulphate and d34s in pore waters and δ¹³c, δ¹⁸o and mineral composition of carbonate nodules from odp leg 188 sites, supplement to: claypool, george e; lorenson, thomas d; johnson, craig a (2003): authigenic carbonates, methane generation, and oxidation in continental rise and shelf sediments, odp leg 188 sites 1165 and 1166, offshore antarctica (prydz bay). in: cooper, ak; o'brien, pe; richter, c (eds.) proceedings of the ocean drilling program, scientific results, college station, tx (ocean drilling program), 188, 1-15 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2003 |
url |
https://dx.doi.org/10.1594/pangaea.780617 https://doi.pangaea.de/10.1594/PANGAEA.780617 |
geographic |
Prydz Bay |
geographic_facet |
Prydz Bay |
genre |
Antarc* Antarctica Prydz Bay |
genre_facet |
Antarc* Antarctica Prydz Bay |
op_relation |
https://dx.doi.org/10.2973/odp.proc.sr.188.004.2003 |
op_rights |
Creative Commons Attribution 3.0 Unported https://creativecommons.org/licenses/by/3.0/legalcode cc-by-3.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/pangaea.780617 https://doi.org/10.2973/odp.proc.sr.188.004.2003 |
_version_ |
1766255115436556288 |