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  • Data  (5)
  • PANGAEA  (5)
  • AGU (American Geophysical Union)
  • American Geophysical Union
Collection
Source
Keywords
Publisher
  • PANGAEA  (5)
  • AGU (American Geophysical Union)
  • American Geophysical Union
Years
  • 1
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    Unknown
    Uranium-Thorium dating of authigenic carbonates and shells from Yam Seep, South China Sea (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-12
    Description: 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.
    Keywords: Authigenic Carbonate; Center for Marine Environmental Sciences; Cold seeps; gas hydrate; MARUM; SO266; South China Sea; Taiwan; U-Th dating
    Type: Dataset
    Format: application/zip, 2 datasets
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 2
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    Unknown
    Uranium - Thorium dating results from carbonate samples of sediment core GeoB23225-1 (Table 2) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Keywords: Age, dated; Age, dated standard deviation; Age, Thorium corrected; Authigenic Carbonate; Center for Marine Environmental Sciences; Cold seeps; Corrected, using the decay constants by Cheng et al. (2013); DEPTH, sediment/rock; Description; gas hydrate; GeoB23225-1; Interval; Laboratory code/label; MARUM; MeBo200; Offshore Taiwan, South China Sea; Sample code/label; Section; SO266; SO266_25-1; SO266/1; Sonne_2; South China Sea; Taiwan; Thorium-230/Thorium-232 activity ratio; Thorium-230/Thorium-232 activity ratio, standard deviation; Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard deviation; Thorium-232; Thorium-232, standard deviation; Uranium-238; Uranium-238, standard deviation; U-Th dating; δ234 Uranium; δ234 Uranium, standard deviation; δ234 Uranium (0); δ234 Uranium (0), standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 2147 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 3
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    Uranium - Thorium dating results from bivalve shell samples of sediment core GeoB23225-1 (Table 3) (2023)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Keywords: Age, dated; Age, dated standard deviation; Age, Thorium corrected; Authigenic Carbonate; Center for Marine Environmental Sciences; Cold seeps; Corrected, using the decay constants by Cheng et al. (2013); DEPTH, sediment/rock; gas hydrate; GeoB23225-1; Identification; Laboratory code/label; MARUM; MeBo200; Offshore Taiwan, South China Sea; SO266; SO266_25-1; SO266/1; Sonne_2; South China Sea; Taiwan; Thorium-230/Thorium-227 activity ratio; Thorium-230/Thorium-227 activity ratio, standard deviation; Thorium-230/Uranium-238 activity ratio; Thorium-230/Uranium-238 activity ratio, standard deviation; Thorium-232; Thorium-232, standard deviation; Uranium-238; Uranium-238, standard deviation; U-Th dating; δ234 Uranium; δ234 Uranium, standard deviation; δ234 Uranium (0); δ234 Uranium (0), standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 90 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 4
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    Chloride concentrations and calculated gas hydrate saturations in sediments collected at Formosa Ridge, RV Sonne cruise SO266/1, South China Sea (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: During cruise SO266/1 deep sediment cores were collected using MARUM-MeBo200 from Formosa Ridge and Four-Way Closure Ridge, South China Sea. Near-surface sediments were retrieved from same positions by use of a gravity corer. Pore water was sampled from selected core depths. Concentrations of pore water chloride concentrations were determined by ion chromatography. Gas hydrate saturation of the pore space were calculated using empirical equations based on pore water chloride concentration anomalies. Data pairs indicated are from single measurements for pore water samples from individual cores.
    Keywords: Calculated; Center for Marine Environmental Sciences; Chloride; DEPTH, sediment/rock; Formosa Ridge; Gas hydrate; GC; GeoB23212-1; GeoB23213-1; GeoB23226-1; GeoB23227-1; Gravity corer; Ion chromatography; MARUM; MeBo200; SO266_12-1; SO266_13-1; SO266_26-3; SO266_27-1; SO266/1; Sonne_2
    Type: Dataset
    Format: text/tab-separated-values, 196 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
  • 5
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    Unknown
    Chloride concentrations and calculated gas hydrate saturations in sediments collected at Four-Way Closure Ridge, RV Sonne cruise SO266/1, South China Sea (2022)
    PANGAEA
    Details
    Publication Date: 2024-06-26
    Description: During cruise SO266/1 deep sediment cores were collected using MARUM-MeBo200 from Formosa Ridge and Four-Way Closure Ridge, South China Sea. Near-surface sediments were retrieved from same positions by use of a gravity corer. Pore water was sampled from selected core depths. Concentrations of pore water chloride concentrations were determined by ion chromatography. Gas hydrate saturation of the pore space were calculated using empirical equations based on pore water chloride concentration anomalies. Data pairs indicated are from single measurements for pore water samples from individual cores.
    Keywords: Calculated; Center for Marine Environmental Sciences; Chloride; DEPTH, sediment/rock; Four-Way Closure Ridge; Gas hydrate; GC; GeoB23204-1; GeoB23205-1; GeoB23216-1; GeoB23240-1; Gravity corer; Ion chromatography; MARUM; MeBo200; SO266_16-1; SO266_40-1; So266_4-1; SO266_5-1; SO266/1; Sonne_2
    Type: Dataset
    Format: text/tab-separated-values, 189 data points
    Location Call Number Expected Availability
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    DATA PANGAEA
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