Radiocarbon age and chronology of sediment core SK-312/12
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| Autores principales: | , , , , , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2025
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| _version_ | 1867170434901868544 |
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| author | Jena, Sanjit Kumar Bhushan, Ravi Jena, Partha Sarathi Bharti, Nisha Sudheer, A K Sanyal, Prasanta Shivam, Ajay Dhabi, Ankur |
| author_facet | Jena, Sanjit Kumar Bhushan, Ravi Jena, Partha Sarathi Bharti, Nisha Sudheer, A K Sanyal, Prasanta Shivam, Ajay Dhabi, Ankur |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Sediment core SK-312/12 was collected from the Equatorial Indian Ocean at 3750m b.s.l.. Radiocarbon age-depth profile was continuous up to 70 cm of the core length. The core was sampled at each 1 cm interval. Nearly alternate sections were processed to separate foraminiferal carbonates from the bulk sediment. Radiocarbon ages were obtained from radiocarbon dating of mixed-layer species Globigerinoides ruber and Trilobatus sacculifer taken in sub-equal amounts from 250-425µm size fraction. The radiocarbon ages were calibrated with respect to the MARINE20 Calibration curve (Heaton et al., 2020) with a modern reservoir age (ΔR) of -54 + 65 yr (Dutta et al., 2001; Southon et al., 2002) under the R package "Bacon" (Blaauw & Christeny, 2011), and the Bayesian chronology was obtained. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_974310 |
| institution | PANGAEA |
| language | en |
| publishDate | 2025 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Radiocarbon age and chronology of sediment core SK-312/12 Jena, Sanjit Kumar Bhushan, Ravi Jena, Partha Sarathi Bharti, Nisha Sudheer, A K Sanyal, Prasanta Shivam, Ajay Dhabi, Ankur Age, 14C; Age, dated; Age, dated standard error; Calendar age; Calendar age, standard error; DEPTH, sediment/rock; GC; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Gravity corer; Sagar Kanya; SK312; SK312/12-13; Δ14C, mixed layer Sediment core SK-312/12 was collected from the Equatorial Indian Ocean at 3750m b.s.l.. Radiocarbon age-depth profile was continuous up to 70 cm of the core length. The core was sampled at each 1 cm interval. Nearly alternate sections were processed to separate foraminiferal carbonates from the bulk sediment. Radiocarbon ages were obtained from radiocarbon dating of mixed-layer species Globigerinoides ruber and Trilobatus sacculifer taken in sub-equal amounts from 250-425µm size fraction. The radiocarbon ages were calibrated with respect to the MARINE20 Calibration curve (Heaton et al., 2020) with a modern reservoir age (ΔR) of -54 + 65 yr (Dutta et al., 2001; Southon et al., 2002) under the R package "Bacon" (Blaauw & Christeny, 2011), and the Bayesian chronology was obtained. |
| title | Radiocarbon age and chronology of sediment core SK-312/12 |
| topic | Age, 14C; Age, dated; Age, dated standard error; Calendar age; Calendar age, standard error; DEPTH, sediment/rock; GC; GEOTRACES; Global marine biogeochemical cycles of trace elements and their isotopes; Gravity corer; Sagar Kanya; SK312; SK312/12-13; Δ14C, mixed layer |
| url | https://doi.org/10.1594/PANGAEA.974310 |