Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Martin, Pamela A; Lea, David W (1998): Trace elements in benthic foraminifera of sediment core V30-49 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.857390, Supplement to: Martin, PA; Lea, DW (1998): Comparison of water mass changes in the deep tropical Atlantic derived from Cd/Ca and carbon isotope records: Implications for changing Ba composition of Deep Atlantic Water Masses. Paleoceanography, 13(6), 572-585, https://doi.org/10.1029/98PA02670

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
Eastern tropical Atlantic benthic foraminiferal Ba/Ca and Cd/Ca data from core V30-949 (3093 m) reveal large inferred changes in nutrient concentrations of deep Atlantic waters during the last 250 kyr. Relative changes in North Atlantic Deep Water contribution to this site are estimated by scaling the V30-49 Cd/Ca record to values of modern end-member water masses; these estimates agree well with the relative structure and timing of circulation changes in the eastern tropical Atlantic reconstructed from a d13C record-based mixing model (Raymo et al., 1997, doi:10.1029/97PA01019). Temporal differences between V30-49 Cd/Ca and Ba/Ca records suggest that the Ba/Ca record reflects changes in circulation with an additional increase in the Ba composition of deep Atlantic water masses during glacial episodes, possibly resulting from increased productivity. Similarity between the d13C and Ba/Ca records suggests that carbon isotopes in the deep glacial Atlantic also reflect productivity increases.
Coverage:
Latitude: 18.433000 * Longitude: -21.080000
Date/Time Start: 1973-03-05T00:00:00 * Date/Time End: 1973-03-05T00:00:00
Event(s):
V30-49 * Latitude: 18.433000 * Longitude: -21.080000 * Date/Time: 1973-03-05T00:00:00 * Elevation: -3093.0 m * Recovery: 9.35 m * Campaign: V30 * Basis: Vema * Method/Device: Piston corer (PC)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets

Download Data

Download ZIP file containing all datasets as tab-delimited text — use the following character encoding:

Datasets listed in this publication series

  1. Martin, PA; Lea, DW (1998): (Table 1) Cd/Ca and Mn/Ca ratios of benthic foraminifera of sediment core V30-49. https://doi.org/10.1594/PANGAEA.857388
  2. Martin, PA; Lea, DW (1998): (Table A1) Averaged foraminiferal trace metal data for sediment core V30-49. https://doi.org/10.1594/PANGAEA.857389