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

Arz, Helge Wolfgang; Pätzold, Jürgen; Wefer, Gerold (1998): Sedimentology and stable isotope ratios of planktonic foraminifera from two cores off Northeastern Brazil [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.711735, Supplement to: Arz, HW et al. (1998): Correlated millennial-scale changes in surface hydrography and terrigenous sediment yield inferred from last-glacial marine deposits off northeastern Brazil. Quaternary Research, 50(2), 157-166, https://doi.org/10.1006/qres.1998.1992

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

RIS CitationBibTeX CitationShow MapGoogle Earth

Abstract:
The stable isotope composition of planktonic foraminifera correlates with evidence for pulses of terrigenous sediment in a sediment core from the upper continental slope off northeastern Brazil. Stable oxygen isotope records of the planktonic foraminiferal species Globigerinoides sacculifer and Globigerinoides ruber (pink) reveal sub-Milankovitch changes in sea-surface hydrography during the last 85,000 yr. Warming of the surface water coincided with terrigenous sedimentation pulses that are inferred from high XRF intensities of Ti and Fe, and which suggest humid conditions in northeast Brazil. These tropical signals correlate with climatic oscillations recorded in Greenland ice cores (Dansgaard-Oeschger cycles) and in sediment cores from the North Atlantic (Heinrich events). Trade winds may have caused changes in the North Brazil Current that altered heat and salt flux into the North Atlantic, thus affecting the growth and decay of the large glacial ice sheets.
Related to:
Arz, Helge Wolfgang (1998): Dokumentation von kurzfristigen Klimaschwankungen des Spätquartärs in Sedimenten des westlichen äquatorialen Atlantiks. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 124, 96 pp, urn:nbn:de:gbv:46-ep000102433
Project(s):
South Atlantic in Late Quaternary: Reconstruction of Budget and Currents (SFB261)
Coverage:
Latitude: -3.666667 * Longitude: -37.716667
Date/Time Start: 1995-03-14T00:00:00 * Date/Time End: 1996-03-30T00:00:00
Event(s):
GeoB3104-1 * Latitude: -3.666667 * Longitude: -37.716667 * Date/Time: 1995-03-14T00:00:00 * Elevation: -767.0 m * Recovery: 5.25 m * Location: NE-Brazilian continental margin * Campaign: JOPSII-6 * Basis: Victor Hensen * Method/Device: Gravity corer (Kiel type) (SL)
GeoB3912-1 * Latitude: -3.666667 * Longitude: -37.716667 * Date/Time: 1996-03-30T00:00:00 * Elevation: -772.0 m * Recovery: 6.8 m * Location: Northeast Brasilian Margin * Campaign: M34/4 * Basis: Meteor (1986) * Method/Device: Gravity corer (Kiel type) (SL) * Comment: CC: light gray carbonate mud, sandy, forams
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 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. Arz, HW; Pätzold, J; Wefer, G (1998): (Table 1) Age determination of sediment core GeoB3104-1. https://doi.org/10.1594/PANGAEA.82333
  2. Arz, HW; Pätzold, J; Wefer, G (1998): Stable oxygen and carbon isotope ratios of planktonic foraminifera from sediment core GeoB3104-1. https://doi.org/10.1594/PANGAEA.81649
  3. Arz, HW; Pätzold, J; Wefer, G (1998): Element concentration of sediment core GeoB3104-1. https://doi.org/10.1594/PANGAEA.81652
  4. Arz, HW; Pätzold, J; Wefer, G (1998): Calcium carbonate, total organic carbon and total carbon of sediment core GeoB3104-1. https://doi.org/10.1594/PANGAEA.54826
  5. Arz, HW; Pätzold, J; Wefer, G (1998): Stable oxygen and carbon isotope ratios of planktonic foraminifera from sediment core GeoB3912-1. https://doi.org/10.1594/PANGAEA.82258
  6. Arz, HW; Pätzold, J; Wefer, G (1998): Composited depth of sediment core GeoB3912-1. https://doi.org/10.1594/PANGAEA.81633
  7. Arz, HW; Pätzold, J; Wefer, G (1998): Element concentration of sediment core GeoB3912-1. https://doi.org/10.1594/PANGAEA.81650