Kasper, Thomas; Wang, Junbo; Schwalb, Antje; Daut, Gerhard; Plessen, Birgit; Zhu, Liping; Mäusbacher, Roland; Haberzettl, Torsten (2023): Bulk stable isotopes of composite sediment core NC_08/01 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.961188, In: Kasper, T et al. (2023): Sedimentological and geochemical analyses of composite sediment core NC_08/01 from lake Nam Co [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.961238
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Published: 2023-09-25 • DOI registered: 2023-10-24
Abstract:
Presented are analytical data from lacustrine sediment cores, retrieved from Lake Nam Co (Tibetan Plateau). The sediment core is a composite of one gravity core, taken with a Rumohr-Meischner gravity corer (63 mm diameter) and a piston core, retrieved using an uwitec piston coring system (http://www.uwitec.at; 90 mm diameter). The composite core labelled <NC 08/01> comprises a total length of 10.378 m. The cores were obtained at N 30.737417, E 090.790333 at a water depth of 93 m on 2008-09-15. The purpose of obtaining this sediment core was to establish a high-resolution record of climate (monsoonal) and environmental change using multiple proxy data. The dataset comprises analytical data based on sedimentological, inorganic geochemical, mineralogical and isotope-geochemical methods. Specifically: sediment water content & density; magnetic susceptibility; particel size data; quantitative inorganic geochemical data (ICP-OES aqua regia and HCL digestions); semi-quantitative XRF elemental data; carbon, nitrogen, sulfur contents; qualitative mineralogical data; bulk sediment stable carbon and oxygen isotope data.
Related to:
Kasper, Thomas; Wang, Junbo; Schwalb, Antje; Daut, Gerhard; Plessen, Birgit; Zhu, Liping; Mäusbacher, Roland; Haberzettl, Torsten (2021): Precipitation dynamics on the Tibetan Plateau during the Late Quaternary – Hydroclimatic sedimentary proxies versus lake level variability. Global and Planetary Change, 205, 103594, https://doi.org/10.1016/j.gloplacha.2021.103594
Project(s):
Funding:
Chinese Academy of Sciences (CAS), grant/award no. XDA20070101: Strategic Priority Research Program of the Chinese Academy of Science
Coverage:
Latitude: 30.737420 * Longitude: 90.790330
Date/Time Start: 2008-09-15T00:00:00 * Date/Time End: 2008-09-15T00:00:00
Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 10.345 m
Event(s):
Comment:
Dried and ground bulk samples of around 60 to 200 μg were used to measure δ13C and δ18O signals using either a Finnigan GasBenchII connected to a DELTAplusXL isotope ratio mass spectrometer (IRMS) or a Finnigan MAT253 IRMS connected to an automated carbonate-reaction device (KIEL IV) at Helmholtz Centre Potsdam, GFZ. Samples were automatically dissolved with 103% H3PO4 at 72 °C. Replicate analysis of reference material (NBS19) reported standard errors of 0.06‰ for both, δ13C and δ18O relative to VPDB.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Kasper, Thomas | Geocode – composite depth | |
| 2 | AGE | Age | ka BP | Kasper, Thomas | Geocode | |
| 3 | δ13C | δ13C | ‰ PDB | Kasper, Thomas | Isotope ratio mass spectrometer (IRMS) | vs. VPDB, error 0.06 per mil |
| 4 | δ18O | δ18O | ‰ | Kasper, Thomas | Isotope ratio mass spectrometer (IRMS) | vs. VPDB, error 0.06 per mil |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
970 data points