PANGAEA_974336 Chromium Reducible Sulfur isotopes from bulk sediments recovered from IODP Site 378-U1553 on the southern Campbell Plateau Reis, Alex; Fichtner, Vanessa; Erhardt, Andrea M Chromium Reducible Sulfur isotopes from bulk sediments recovered from IODP Site 378-U1553 on the southern Campbell Plateau 2025-01-13 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.974336 Investigator Alex Reis alex.reis@uky.edu Earth Science Sample code/label Half DEPTH, sediment/rock δ34S, sulfide Chromium reducible sulfides geoscientificInformation 378-U1553D Campbell Plateau Drilling/drill rig Exp378 sulfate-methane transition Sulfur isotopes DSDP/ODP/IODP sample designation IODP Depth Scale Terminology Elemental analyser isotope ratio mass spectrometer (EA-IRMS), Thermo Fischer Scientific; coupled with Isotope ration mass spectrometer (IRMS), Thermo Fischer Scientific, MAT253 Sequential extraction method according to Zhabina and Volkov (1978) and Canfield et al. (1986) Joides Resolution 2020-01-21 2020-01-24 Complete -52.224 -52.224 166.1913 166.1913 477.41 m (DEPTH, sediment/rock) 580.92 m (DEPTH, sediment/rock) unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 268 data points text/tab-separated-values Reis, Alex; Fichtner, Vanessa; Erhardt, Andrea M (accepted): Sulfate-Driven Anaerobic Oxidation of Methane in Deeply Buried Sediments on the Southern Campbell Plateau. 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. Chemical Geology, 54 (1-2), 149-155, https://doi.org/10.1016/0009-2541(86)90078-1 Zhabina, Nina N; Volkov, Igor I (1978): A method of determination of various sulphur compounds in sea sediments and rocks. In: Krumbein, W E (ed.), Environmental biogeochemistry: Methods, metals and assessment, Volume 3, Ann Arbor Science Publishers

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. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.974336"!

https://doi.org/10.1016/0009-2541(86)90078-1 The use of chromium reduction in the analysis of reduced inorganic sulfur in sediments and shales https://hdl.handle.net/10013/epic.27914.d001 DSDP/ODP/IODP sample designation https://hdl.handle.net/10013/epic.50267.d001 IODP Depth Scale Terminology https://www-odp.tamu.edu:443/resolutn.html Joides Resolution DIF 9.4 2025-01-13 2026-04-30