Tseng, Yiting; Bohrmann, Gerhard; Schröder-Ritzrau, Andrea; Frank, Norbert; Smrzka, Daniel; Lin, Saulwood (2023): Uranium-Thorium dating of authigenic carbonates and shells from Yam Seep, South China Sea [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.957580
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Abstract:
This data presents high precision Th/U ages from seep carbonates obtained from a 5-meter-long rock core (GeoB 23225-1, MeBo24) collected by the sea floor drill rig MARUM-MeBo200 in Yam Seep, SW offshore Taiwan during SO266, RV Sonne. The dating results provide records of over 40 thousand years old gas seepage and an unconventional precipitation sequence throughout the 5-meter downcore. The oldest age presents at ~192 cmbsf and the youngest age at the lower end of the core (~490 cmbsf). It provides insights into gas seepage episodes at active margin as well as precipitation sequences influenced by fracturing. Uranium and thorium isotope measurements were performed at the Institute of Environmental Physics multi-collector ICPMS facility in Heidelberg, which hosts a ThermoFisher Neptuneplus MC-ICPMS following the method of Wefing et al., (2017) and Frank and Hemsing (2021).
Coordinate GeoB 23225-1 (Lat. Lon.): 22° 03.487' 119° 47.979'; Water depth: 1352 mbsl.
Keyword(s):
Supplement to:
Tseng, Yiting; Smrzka, Daniel; Lin, Saulwood; Schröder-Ritzrau, Andrea; Frank, Norbert; Bohrmann, Gerhard (2023): Authigenic Carbonate Precipitation at Yam Seep Controlled by Continuous Fracturing and Uplifting of Four‐Way Closure Ridge Offshore SW Taiwan. Geochemistry, Geophysics, Geosystems, 24(7), e2022GC010652, https://doi.org/10.1029/2022GC010652
References:
Frank, Norbert; Hemsing, Freya (2021): Dating of Corals and Other Geological Samples via the Radioactive Disequilibrium of Uranium and Thorium Isotopes. In: Ramstein, G, Landais, A, Bouttes, N, Sepulchre, P, Govin, A (eds.), Paleoclimatology, Frontiers in Earth Sciences, Springer International Publishing, Cham, 89-100, https://doi.org/10.1007/978-3-030-24982-3_6
Wefing, Anne-Marie; Arps, Jennifer; Blaser, Patrick; Wienberg, Claudia; Hebbeln, Dierk; Frank, Norbert (2017): High precision U-series dating of scleractinian cold-water corals using an automated chromatographic U and Th extraction. Chemical Geology, 475, 140-148, https://doi.org/10.1016/j.chemgeo.2017.10.036
Project(s):
Funding:
Ministry of Science and Technology (MOST), grant/award no. MOST107-3113-M-002-004: Taiwanese Ministry of Science and Technology (MoST) Project 'TaiGer drill'
Coverage:
Latitude: 22.058117 * Longitude: 119.799650
Date/Time Start: 2018-11-03T04:09:00 * Date/Time End: 2018-11-03T04:09:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets
Download Data
Datasets listed in this bundled publication
- Tseng, Y; Bohrmann, G; Schröder-Ritzrau, A et al. (2023): Uranium - Thorium dating results from carbonate samples of sediment core GeoB23225-1 (Table 2). https://doi.org/10.1594/PANGAEA.957558
- Tseng, Y; Bohrmann, G; Schröder-Ritzrau, A et al. (2023): Uranium - Thorium dating results from bivalve shell samples of sediment core GeoB23225-1 (Table 3). https://doi.org/10.1594/PANGAEA.957578