Orbital CO₂ reconstruction using boron isotopes during the late Pleistocene at ODP Sites 165-999 and 144-871


This data set reports two highly resolved δ¹¹B-derived CO₂ records during the late Pleistocene (0-400 ky) from ODP Sites 999 (Caribbean) and 871 (West Pacific) based on the δ¹¹B of the planktonic foraminifera species Globigerinoides ruber measured by MC-ICPMS (multicollector inductively coupled plasma mass spectrometer). The δ¹¹B-derived CO₂ is tested against the ice core CO₂ record as well as compared with different CO₂ calculation approaches and proxies of local foraminifera dissolution to evaluate drivers of CO₂ offset between the two records. We report (1) δ¹¹B, Mg/Ca and input data for boron-derived CO₂ calculation, (2) Mg/Ca-derived sea surface temperature calculated with various approaches, (3) the effect of Mg/Ca treatment on boron-derived CO₂, (4) δ¹⁸O and δ¹³C of benthic foraminifera and G. ruber, and (5) fragmentation index and sand fraction.

DOI https://doi.pangaea.de/10.1594/PANGAEA.965168
Related Identifier IsSupplementTo https://doi.org/10.5194/cp-19-2493-2023
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.965168
Creator de la Vega, Elwyn ORCID logo
Publisher PANGAEA
Publication Year 2024
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Bundled Publication of Datasets; Collection
Format application/zip
Size 6 datasets
Discipline Earth System Research
Spatial Coverage (-78.739W, 5.557S, 172.344E, 12.744N)
Temporal Coverage Begin 1992-05-25T03:45:00Z
Temporal Coverage End 1996-01-14T23:15:00Z