Stein, Ruediger: Rock-Eval data of IODP Hole 370-C0023A [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.936510 (dataset in review)
Abstract:
Rock-Eval pyrolysis was conducted on ground bulk sediment samples (100 mg/sample) to determine (1) the amount of hydrocarbons (HC) already present in the sample (S1 peak in mg hydrocarbons per gram sediment), (2) the amount of hydrocarbons generated by pyrolytic degradation of the kerogen during heating up to 550°C (S2 peak in mg hydrocarbon per gram sediment), (3) the amount of carbon dioxide generated during heating up to 390 °C (S3 peak in mg carbon dioxide per gram sediment), and (4) the temperature of maximum pyrolysis yield (Tmax value in °C). Total organic carbon (TOC) values of the analyzed sediments were known from shipboard measurements (Heuer et al., 2017). The hydrogen index (HI) corresponds to the quantity of pyrolyzable hydrocarbons per gram OC (mgHC/gTOC), the oxygen index (OI) corresponds to the quantity of carbon dioxide per gram OC (mgCO2/gTOC). Tmax values < 435 °C are indicative for immature organic matter. In combination with HI values, Tmax values may give further information about the composition of the organic matter.The Rock-Eaval data are discussed in Kars et al. (2021/in review).
Keyword(s):
Related to:
Heuer, Verena B; Inagaki, F; Morono, Yuki; Kubo, Y; Maeda, Lena; Expedition 370 Scientists (2017): Temperature Limit of the Deep Biosphere off Muroto. International Ocean Discovery Program Preliminary Report, International Ocean Discovery Program, https://doi.org/10.14379/iodp.pr.370.2017
Kars, Myriam; Köster, Male; Henkel, Susann; Stein, Ruediger; Schubotz, Florence; Zhao, Xiang; Bowden, S; Roberts, Andrew P; Kodama, Kazuto (in review): Influence of Early Low-Temperature and Later High-Temperature Diagenesis on Magnetic Mineral Assemblages in Marine Sediments from the Nankai Troug. Geochemistry, Geophysics, Geosystems
Coverage:
Latitude: 32.366667 * Longitude: 134.966333
Date/Time Start: 2016-09-17T00:00:00 * Date/Time End: 2016-11-03T00:00:00
Minimum DEPTH, sediment/rock: 189.9 m * Maximum DEPTH, sediment/rock: 1176.6 m
Event(s):
370-C0023A * Latitude: 32.366667 * Longitude: 134.966333 * Date/Time Start: 2016-09-17T00:00:00 * Date/Time End: 2016-11-03T00:00:00 * Elevation: -4776.0 m * Location: Nankai Trough * Campaign: Exp370 * Basis: Chikyu * Method/Device: Drilling/drill rig (DRILL) * Comment: 83 cores, from 189 to 871 mbsf.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Stein, Ruediger | DSDP/ODP/IODP sample designation | ||
| 2 | DEPTH, sediment/rock | Depth sed | m | Stein, Ruediger | Geocode – mbsf | |
| 3 | Carbon, organic, total | TOC | % | Stein, Ruediger | data from Heuer et al. (2017) | |
| 4 | Hydrocarbon yield, S1 per unit sediment mass | S1 HC/sed | mg/g | Stein, Ruediger | Rock eval pyrolysis (Behar et al., 2001) | |
| 5 | Hydrocarbon yield, S2 per unit sediment mass | S2 HC/sed | mg/g | Stein, Ruediger | Rock eval pyrolysis (Behar et al., 2001) | |
| 6 | Carbon dioxide yield, S3 per unit sediment mass | S3 CO2/sed | mg/g | Stein, Ruediger | Rock eval pyrolysis (Behar et al., 2001) | |
| 7 | Pyrolysis temperature maximum | Tmax | °C | Stein, Ruediger | Rock eval pyrolysis (Behar et al., 2001) | |
| 8 | Hydrogen index, mass HC, per unit mass total organic carbon | HI, HC/TOC | mg/g | Stein, Ruediger | Rock eval pyrolysis (Behar et al., 2001) | |
| 9 | Oxygen index, mass CO2, per unit mass total organic carbon | OI, CO2/TOC | mg/g | Stein, Ruediger | Rock eval pyrolysis (Behar et al., 2001) |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1104 data points