Cornuault, Pauline; Westerhold, Thomas; Pälike, Heiko; Bickert, Torsten; Baumann, Karl-Heinz; Kucera, Michal (2022): Carbonate content analyses and accumulation rate data for the marine isotopic stage (MIS) 5, MIS 9, MIS KM5 and MCO, ODP Site 154-927, Ceara Rise, tropical Atlantic Ocean [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.945789, In: Cornuault, P et al. (2022): Splice composition of the Leg 154, Site 927, from 110.43 mcd to 119.79 mcd , Ceara Rise, tropical Atlantic [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.945947
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Abstract:
Total carbon measurement (LECO CS744 elemental analyser, Bremen University). The analyses were performed by heating 0.1 g of homogenised material in a ceramic dish and measuring the resulting CO2 in IR cells. The carbonate content has been calculated as the difference between the total carbon content and the organic carbon content, measured in a second sample that was pre-treated with hydrochloric acid to remove carbonates. Both measurements have an accuracy of 0.001 mg (1 ppm) or 0.5 % relative standard deviation (RSD). The inorganic carbon was then converted to carbonate content using the molecular mass of calcium carbonate. The carbonate content data were combined with dry bulk density (DBD) and sedimentation rate (SR, this study) to calculate the carbonate accumulation rate (CaCO3 AR) as CaCO3 AR = (CaCO3 % / 100) x DBD x SR for the four time intervals MIS 5, MIS 9, MIS KM5 and MCO for the Leg 154, Site 927, Ceara Rise, tropical Atlantic Ocean. The composite depths and age model presented are from this study.
Keyword(s):
Related to:
Cornuault, Pauline; Westerhold, Thomas; Pälike, Heiko; Bickert, Torsten; Baumann, Karl-Heinz; Kucera, Michal (2023): Nature and origin of variations in pelagic carbonate production in the tropical ocean since the mid-Miocene (ODP Site 927). Biogeosciences, 20(3), 597-618, https://doi.org/10.5194/bg-20-597-2023
Project(s):
Ocean Drilling Program (ODP)
Funding:
German Research Foundation (DFG), grant/award no. 390741603: EXC 2077: The Ocean Floor – Earth's Uncharted Interface
Coverage:
Latitude: 5.462867 * Longitude: -44.480567
Date/Time Start: 1994-02-28T00:00:00 * Date/Time End: 1994-03-04T00:00:00
Minimum DEPTH, sediment/rock: 4.05 m * Maximum DEPTH, sediment/rock: 310.39 m
Event(s):
154-927 * Latitude: 5.462867 * Longitude: -44.480567 * Date/Time Start: 1994-02-28T00:00:00 * Date/Time End: 1994-03-04T00:00:00 * Elevation: -3326.7 m * Penetration: 840.7 m * Recovery: 846.2 m * Location: South Atlantic Ocean * Campaign: Leg154 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 89 cores; 840.7 m cored; 0 m drilled; 100.7% recovery
Parameter(s):
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
5481 data points
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