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

Broecker, Wallace S; Clark, Elizabeth; Hajdas, Irena; Bonani, Georges (2004): Age determination using benthic and planktonic foraminifera of central Pacific Ocean sediment cores [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.839747, Supplement to: Broecker, WS et al. (2004): Glacial ventilation rates for the deep Pacific Ocean. Paleoceanography, 19(2), PA2002, https://doi.org/10.1029/2003PA000974

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

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
A key constraint in attempts to reconstruct the patterns and rates of the ocean's thermohaline circulation during the last glacial period is the difference between the 14C to C ratio in surface and deep water. While imperfect, it is our best index of past deep-sea ventilation rates. In this paper we review published ventilation rate estimates based on the measured radiocarbon age difference between coexisting benthic and planktic foraminifera from glacial-age Pacific sediments. We also present new results from a series of eastern equatorial Pacific sediment cores. The conclusion is that the scatter in these results is so large that the apparent 14C age of glacial deep Pacific water could lie anywhere between double and half today's. Further, it is not clear what is responsible for the wide scatter in the radiocarbon results.
Coverage:
Median Latitude: -2.829500 * Median Longitude: -93.766500 * South-bound Latitude: -5.517000 * West-bound Longitude: -106.800000 * North-bound Latitude: -0.467000 * East-bound Longitude: -82.070000
Date/Time Start: 1963-04-05T00:00:00 * Date/Time End: 1967-10-14T00:00:00
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. Broecker, WS; Clark, E; Hajdas, I et al. (2004): (Table 5) Age determination of central Pacific Ocean sediment cores. https://doi.org/10.1594/PANGAEA.839746
  2. Broecker, WS; Clark, E; Hajdas, I et al. (2004): (Table 4) Coarse fraction and sedimentation rates of central Pacific Ocean sediment cores. https://doi.org/10.1594/PANGAEA.839745