Calcium carbonate, sedimentary organic carbon, and shell weight of selected planktic foraminifera from ODP Hole 115-716A

DOI

To understand the variations in carbonate burial for the last 30 kiloannum (ka), we have utilized a core from the Ocean DrillingProgram (ODP), Site716A (04.56°N and 73.17°E) retrieved from a water depth of 533 m from the Maldives (carbonate platform) Sea. We analyzed calcium carbonate (CaCO%), sedimentary organic carbon (C-org %) and shell weights of selected planktic foraminifera species (Globigerinoides ruber, Pulleniatina obliquiloculata and Neogloboquadrina dutertrei) to see the contrast in carbonate preservation during the late last glacial-Holocene. Our dataset reveals that carbonate preservation declined during the last glacial maximum (LGM) and the Holocene, probably due to organic matter degradation in sediments. The ratio of C-org/CaCO was relatively higher during the LGM than during the last deglacial period (LDP) and the Holocene. Furthermore, the heavier planktic foraminifera shell weights during the LDP indicate relatively increased carbonate preservation, which is linked to the deglacial release of carbon dioxide (CO₂) from the ocean to the atmosphere.

Identifier
DOI https://doi.org/10.1594/PANGAEA.949551
Related Identifier References https://doi.org/10.1007/s00367-022-00736-9
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.949551
Provenance
Creator Yadav, Ramanand ORCID logo; Naik, Sushant S
Publisher PANGAEA
Publication Year 2022
Funding Reference Department of Science and Technology https://doi.org/10.13039/501100001409 Crossref Funder ID MLP 2014 Long-term evolution of monsoon and associated processes (LEMAP)
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 246 data points
Discipline Earth System Research
Spatial Coverage (73.283 LON, 4.933 LAT); Lakshadweep Sea
Temporal Coverage Begin 1987-06-28T14:45:00Z
Temporal Coverage End 1987-06-29T12:30:00Z