Neodymium isotope ratios of fish teeth from ODP Site 113-689 (Appendix A)

DOI

Long-term records of neodymium (Nd) isotopes from sedimentary archives can be influenced by both changes in water mass mixing and continental weathering. Results of Nd isotopic analyses of fossil fish teeth from ODP Site 689 (Maud Rise, Southern Ocean) provide a long, continuous, high-resolution marine sediment Nd isotope record (expressed in epsilon-Nd units). Correlation of down core secular variations between the epsilon-Nd record, delta13C values from benthic foraminifera, and clay mineral assemblages demonstrates that long-term variability of Nd isotope ratios reflect changes in ocean circulation, and that only minor fluctuations in epsilon-Nd values are associated with changes in continental weathering on Antarctica. Nonradiogenic epsilon-Nd values at Site 689 during the middle Eocene require the contribution of an end member with epsilon-Nd 125 µm

Supplement to: Scher, Howie D; Martin, Ellen E (2004): Circulation in the Southern Ocean during the Paleogene inferred from neodymium isotopes. Earth and Planetary Science Letters, 228(3-4), 391-405

Identifier
DOI https://doi.org/10.1594/PANGAEA.708129
Related Identifier https://doi.org/10.1016/j.epsl.2004.10.016
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.708129
Provenance
Creator Scher, Howie D; Martin, Ellen E ORCID logo
Publisher PANGAEA
Publication Year 2004
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 487 data points
Discipline Earth System Research
Spatial Coverage (3.100 LON, -64.517 LAT); South Atlantic Ocean
Temporal Coverage Begin 1987-01-15T00:00:00Z
Temporal Coverage End 1987-01-19T00:00:00Z