Reis Alex alex.reis@uky.edu 0000-0002-5257-3463 University of Kentucky Fichtner Vanessa University of Göttingen https://ror.org/01y9bpm73 Erhardt Andrea M andrea.erhardt@uky.edu http://www.andreaerhardt.com 0000-0002-5213-986X University of Kentucky 2025 Chromium Reducible Sulfur isotopes from bulk sediments recovered from IODP Site 378-U1553 on the southern Campbell Plateau dataset https://doi.org/10.1594/PANGAEA.974336 2025-01-13T06:57:26 Bulk sediment chromium reducible sulfur isotopes (CRS) from IODP site 378-U1553 (166°11.4801′E, 52°13.4294′S) located on the Campbell Plateau are presented. These data were collected between 2021 and 2022 at the Kentucky Stable Isotope Geochemistry Lab. The samples analyzed were from the Paleocene mudstones recovered between 480 and 580 CSF-A. The samples were processed using a sequential extraction method developed from Zhabina and Volkov (1978) and Canfield et al. (1986). CRS was extracted as zinc sulfide, then converted to silver sulfide using a silver nitrate solution. The silver sulfide was measured for sulfur isotopes using an EA-Isolink elemental analyzer connected in continuous flow to a MAT253 IRMS. The samples were analyzed with a minimum of 10% duplicates and were calibrated to the V-CDT scale with a standard deviation of 0.3‰ based on repeated measurements of the standard IAEA-S-1. These data were collected to investigate the presence of a deep sulfate-methane transition zone and to evaluate how the presence of an SMTZ affected the chemistry and composition of the recovered sediments. Reis Alex alex.reis@uky.edu 0000-0002-5257-3463 Fichtner Vanessa Erhardt Andrea M andrea.erhardt@uky.edu http://www.andreaerhardt.com 0000-0002-5213-986X accepted Sulfate-Driven Anaerobic Oxidation of Methane in Deeply Buried Sediments on the Southern Campbell Plateau journal article Chemical Geology Canfield Donald E Raiswell Robert Westrich Joseph T Reaves Christopher M Berner Robert A 1986 The use of chromium reduction in the analysis of reduced inorganic sulfur in sediments and shales journal article Chemical Geology 54 (1-2) https://doi.org/10.1016/0009-2541(86)90078-1 149-155 Zhabina Nina N Volkov Igor I 1978 A method of determination of various sulphur compounds in sea sediments and rocks book chapter In: Krumbein, W E (ed.), Environmental biogeochemistry: Methods, metals and assessment, Volume 3, Ann Arbor Science Publishers 166.1913 166.1913 -52.224 -52.224 166.1913 -52.224 2020-01-21T14:30:00 2020-01-24T12:55:00 477.41 580.92 vertical profile 378-U1553D -52.224 166.1913 South Pacific Ocean -1221.61 2020-01-21T14:30:00 2020-01-24T12:55:00 Exp378 Exp378 2020-01-03T00:00:00 2020-01-03 2023-07-06T00:00:00 2023-07-06 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Childress, Laurel Childress, Laurel Röhl, Ursula Röhl, Ursula Thomas, Deborah J Thomas, Deborah J doi:10.14379/iodp.proc.378.103.2022 Joides Resolution https://www-odp.tamu.edu:443/resolutn.html Drilling/drill rig DRILL Time on hole (days): 2.93, Seafloor depth DRF (m): 1233, Seafloor depth est. method: OFFSET, Rig floor to sea level (m): 11.39, Penetration DSF (m): 584.3, Cored interval (m): 184.9, Recovered length (m): 97.95, Recovery (%): 52.97, Drilled interval (m): 399.4, Drilled interval (no.): 1, Total cores (no.): 19, RCB cores (no.): 19 268 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Sample code/label Sample label DSDP/ODP/IODP sample designation hdl:10013/epic.27914.d001 Reis Alex alex.reis@uky.edu 0000-0002-5257-3463 Sample label Half Half Reis Alex alex.reis@uky.edu 0000-0002-5257-3463 Section half Half DEPTH, sediment/rock Depth sed m depth http://purl.obolibrary.org/obo/PATO_0001595 sediment http://purl.obolibrary.org/obo/ENVO_00002007 rock Length L http://dbpedia.org/resource/Length IODP Depth Scale Terminology hdl:10013/epic.50267.d001 Reis Alex alex.reis@uky.edu 0000-0002-5257-3463 CSF-A Depth sed [m] δ34S, sulfide δ34S H2S ‰ CDT δ34S http://en.wikipedia.org/wiki/List_of_elements_by_stability_of_isotopes sulfide http://purl.obolibrary.org/obo/CHEBI_26822 Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fischer Scientific; coupled with Isotope ration mass spectrometer (IRMS), Thermo Fischer Scientific, MAT253 Thermo Fisher Scientific MAT 253 isotope ratio mass spectrometer http://vocab.nerc.ac.uk/collection/L22/current/TOOL2142/ Reis Alex alex.reis@uky.edu 0000-0002-5257-3463 vs. V-CDT δ34S H2S [‰ CDT] Chromium reducible sulfides CRS mg/kg Sequential extraction method according to Zhabina and Volkov (1978) and Canfield et al. (1986) Reis Alex alex.reis@uky.edu 0000-0002-5257-3463 Original unit is ppm CRS [mg/kg] CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Campbell Plateau sulfate-methane transition Sulfur isotopes author22955 author23453 author23454 author23455 author23456 author28870 author36267 author49132 author50382 author99690 basis5 campaign3375414 campaign49338 curlevel30 event3060344 geocode1 geocode1599 geocode1600 geocode1601 geocode8128 inst21164 inst21299 journal3311 license21 method10974 method17457 method18385 method5059 method9338 param105436 param16062 param29862 param790 pi99690 ref137458 ref95875 ref95893 term1073094 term1073131 term1073770 term21005 term38263 term4047470 term41056 term43863 term60689 term75309 term75310 topotype3