Total carbon, total organic carbon, total inorganic carbon and total sulfur (solid-phase discrete samples) from IODP Hole 386-M0094B

Total carbon (TC), total organic carbon (TOC), total inorganic carbon (TIC) and total sulfur (TS) from solid-phase discrete samples of the above given hole of International Ocean Discovery Program (IODP) Expedition 386 (Japan Trench Paleoseismology). The offshore phase of this expedition took place between 2021-04-13 and 2021-06-01 onboard Japanese R/V Kaimei from and to Yokosuka, Japan, followed by an onshore phase onboard D/V Chikyu between 2022-02-14 – 2022-03-15. During the onshore phase a set of solid-phase samples, with a volume of approx. 10 cubic centimeters each, were taken with the purpose to be later on split into aliquots for the following three analyses: X-ray diffraction, carbon and X-ray fluorescence. The bulk solid-phase samples were taken from the work halves of core sections at about one sample per meter on average. Unprocessed samples were then shipped to the MARUM - Center for Marine Environmental Sciences of the University of Bremen (Germany), where they were freeze-dried, ground and homogenized to a fine powder by ECORD Science Operator staff using a pestle and an agate mortar. For TC, TOC and TS an aliquot of approx. 100 mg from each sample was measured using a CS744 LECO carbon-sulphur analyzer. TIC was determined by subtracting TOC from TC. All data are reported in weight percentage per dry sample with an analytical precision. Total nitrogen (TN, aliquot of approx. 30 mg) was analyzed with a Vario EL3 CHNS analyzer by Elementar. Because of technical issues, TN was only measured on samples from Sites M0081 and M0082.For further methodological information see methods chapter in Strasser, M. et al., 2023 https://doi.org/10.14379/iodp.proc.386.102.2023

国际大洋发现计划（International Ocean Discovery Program, IODP）第386航次（日本海沟古地震学）上述钻孔的固相离散样品中的总碳（TC）、总有机碳（TOC）、总无机碳（TIC）和总硫（TS）数据。该航次的海上阶段于2021年4月13日至6月1日在日本科考船R/V Kaimei上开展，往返于日本横须贺；随后的陆上阶段于2022年2月14日至3月15日在钻探船D/V Chikyu上进行。陆上阶段采集了一组固相样品，每个样品体积约10立方厘米，旨在后续分取等分试样（aliquot）用于以下三项分析：X射线衍射、碳分析和X射线荧光分析。 bulk固相样品取自岩心段的工作半段，平均每米约取一个样品。未处理的样品随后被运至德国不来梅大学海洋环境科学中心（MARUM），由ECORD科学操作人员使用研杵和玛瑙研钵进行冻干、研磨并均质化为细粉末。对于TC、TOC和TS，每个样品分取约100毫克的等分试样（aliquot），使用LECO CS744碳硫分析仪进行测定。TIC通过TC减去TOC计算得出。所有数据均以干样品的重量百分比报告，并附分析精度。总氮（TN）分析使用Elementar公司的Vario EL3 CHNS分析仪，每个样品分取约30毫克的等分试样（aliquot）。由于技术问题，仅对M0081和M0082站位的样品进行了TN测定。更多方法学信息请参见Strasser等人2023年的方法学章节，DOI：https://doi.org/10.14379/iodp.proc.386.102.2023。