Oxygen isotope record of Globorotalia tumida and Globigerinoides sacculifer in sediments at ODP Site 130-806

DOI

Planktonic foraminiferal oxygen isotope records from the western and eastern tropical Pacific and Atlantic Oceans suggest a southward shift in the Intertropical Convergence Zone toward its modern location between 4.4 and 4.3 Ma. A concomitant shift in the carbon isotope compositions of Atlantic benthic foraminifera provides strong evidence for an increased thermohaline overturn at this time. We suggest that the southward shift of the Intertropical Convergence Zone and associated change in trade-wind circulation altered equatorial surface hydrography, increased the advection of warmer and more saline surface waters into the subtropical and North Atlantic, and contributed to thermohaline overturn.

Age was erroneously given in Ma, recalculated to ka on 2017-09-28.

Supplement to: Billups, Katharina; Ravelo, Ana Christina; Zachos, James C; Norris, Richard D (1999): Link between oceanic heat transport, thermohaline circulation, and the Intertropical Convergence Zone in the early Pliocene Atlantic. Geology, 27(4), 319-322

Identifier
DOI https://doi.org/10.1594/PANGAEA.712955
Related Identifier https://doi.org/10.1130/0091-7613(1999)027<0319:LBOHTT>2.3.CO
Related Identifier IsVariantFormOf ftp://rock.geosociety.org/pub/reposit/1999/9929.pdf
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.712955
Provenance
Creator Billups, Katharina ORCID logo; Ravelo, Ana Christina (ORCID: 0000-0003-3929-677X); Zachos, James C ORCID logo; Norris, Richard D ORCID logo
Publisher PANGAEA
Contributor Bralower, Timothy J
Publication Year 1999
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 1182 data points
Discipline Earth System Research
Spatial Coverage (159.361 LON, 0.319 LAT); North Pacific Ocean
Temporal Coverage Begin 1990-02-17T00:00:00Z
Temporal Coverage End 1990-02-25T00:00:00Z