Sousa, Isabela Moreno Cordeiro; Hélie, Jean-François; Adamowicz, Agnieszka; Hillaire-Marcel, Claude; de Vernal, Anne: Total carbon, total nitrogen, total organic carbon and its δ13C composition in Pliocene sediments from the Ross Sea IODP Site 374-U1524 [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.982576 (dataset in review)
Abstract:
This dataset consists of total carbon (Ctot), total nitrogen (Ntot), total organic carbon (Corg) and δ13C (organic carbon, δ13Corg) measurements of mid-Pliocene sediments from the Integrated Ocean Drilling Program (IODP) expedition 374, site U1524, in the Ross Sea, Antarctica.
Total carbon, total nitrogen and organic carbon were measured in an Elementar Vario Micro Cube elemental analyzer. δ13Corg measurements were performed with an IsoPrime 100 isotope ratio mass spectrometer coupled to an Elementar Vario Isotope Cube elemental analyser in continuous flow mode. For organic carbon (Corg) and δ13Corg measurements, carbonate removal was performed by acid fumigation with HCl.
The samples were freeze-dried and homogenized using an agate mortar prior to analysis. However, since different aliquots were used for total carbon and organic carbon measurements, some samples occasionally show slightly higher Corg values than Ctot. Uncertainties were estimated according to Hélie and Hillaire-Marcel (2021).
Supplement to:
Sousa, Isabela Moreno Cordeiro; Hillaire-Marcel, Claude; de Vernal, Anne; Kasemann, Simone A (in prep.): Sub-precessional to obliquity variability of organic carbon sources and burial in the Ross Sea (Antarctica) during the mid-Pliocene Warm Period.
References:
Hélie, Jean-François; Hillaire-Marcel, Claude (2021): Designing working standards for stable H, C, and O isotope measurements in CO 2 and H 2 O. Rapid Communications in Mass Spectrometry, 35(5), e9008, https://doi.org/10.1002/rcm.9008
Coverage:
Latitude: -74.217400 * Longitude: -173.633600
Minimum Elevation: -2394.4 m * Maximum Elevation: -2394.4 m
Event(s):
374-U1524A * Latitude: -74.217400 * Longitude: -173.633600 * Elevation: -2394.4 m * Number of cores: 34 * Penetration: 299.5 m * Recovery: 94 % * Location: Ross Sea Region, Antarctica * Campaign: Exp374 * Basis: Joides Resolution * Method/Device: Drilling/coring * Comment: Number of APC cores = 30, HLAPC cores = 1, XCB cores = 3. Drilling systems: APC (core type H), XCB (core type X).
Parameter(s):
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:
531 data points