Coccolith abundance, carbonate content, and stable isotope of carbonate in the late Pleistocene section of IODP Hole349-U1433A


The carbonate content, coccolith abundance, coccolith's contribution to carbonate, stable isotope ratios of bulk carbonate were analyzed in the late Pleistocene section of the site IODP U1433 in the South China Sea. This dataset is employed to study the carbonate source and coccoliths' contribution to bulk carbonate in the sediment blow carbonate compensation depth (CCD). The core was retrieved during the International Ocean Drilling Project 349, 2014, in the South China Sea. The bulk carbonate content was measured by Controlab NFP18–508 carbonate analyzer. The carbon and oxygen isotopic ratios of carbonate were analyzed by Finnigan MAT 252 mass spectrometer. The slides for coccolith abundance and morphological analyses were perpared following the “drop technique”. The light for thickness measurement were calibrated with a calcite wedge. The cococlith assemblages were analyzed following the taxonomy in Nannotax3 ( The coccolith contribution to carbonate was estimated with number of cococlith*mean coccolith mass/carbonate content.

Metadata Access
Creator Zhang, Hongrui ORCID logo; Zhou, Xinquan ORCID logo; Xiaoying, Jiang; Liu, Chuanlian
Publisher PANGAEA
Publication Year 2023
Funding Reference National Natural Science Foundation of China Crossref Funder ID 41930536
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 1836 data points
Discipline Earth System Research
Spatial Coverage (115.050 LON, 12.910 LAT)