Geological investigations on sediment core MD07-3128 ...

Glacial millennial-scale paleoceanographic changes in the Southeast Pacific and the adjacent Southern Ocean are poorly known due to the scarcity of well-dated and high resolution sediment records. Here we present new surface water records from sediment core MD07-3128 recovered at 53°S off the Pacifi...

Full description

Bibliographic Details
Main Authors: Caniupán, Ana Magaly, Lamy, Frank, Lange, Carina Beatriz, Kaiser, Jérôme, Arz, Helge Wolfgang, Kilian, Rolf, Urrea, Oscar Baeza, Aracena, C, Hebbeln, Dierk, Kissel, Catherine, Laj, C, Mollenhauer, Gesine, Tiedemann, Ralf
Format: Article in Journal/Newspaper
Language:English
Published: PANGAEA 2011
Subjects:
Calypso Corer II
MD159
Marion Dufresne 1995
Paleoenvironmental Reconstructions from Marine Sediments @ AWI AWI_Paleo
Antarc*
Antarctic
ice core
Ice Sheet
Neogloboquadrina pachyderma
Planktonic foraminifera
Southern Ocean
Online Access:https://dx.doi.org/10.1594/pangaea.771860
https://doi.pangaea.de/10.1594/PANGAEA.771860
Description
Summary:Glacial millennial-scale paleoceanographic changes in the Southeast Pacific and the adjacent Southern Ocean are poorly known due to the scarcity of well-dated and high resolution sediment records. Here we present new surface water records from sediment core MD07-3128 recovered at 53°S off the Pacific entrance of the Strait of Magellan. The alkenone-derived sea surface temperature (SST) record reveals a very strong warming of ca. 8°C over the last Termination and substantial millennial-scale variability in the glacial section largely consistent with our planktonic foraminifera oxygen isotope (d18O) record of Neogloboquadrina pachyderma (sin.). The timing and structure of the Termination and some of the millennial-scale SST fluctuations are very similar to those observed in the well-dated SST record from ODP Site 1233 (41°S) and the temperature record from Drowning Maud Land Antarctic ice core supporting the hemispheric-wide Antarctic timing of SST changes. However, differences in our new SST record are also ... : Supplement to: Caniupán, Ana Magaly; Lamy, Frank; Lange, Carina Beatriz; Kaiser, Jérôme; Arz, Helge Wolfgang; Kilian, Rolf; Urrea, Oscar Baeza; Aracena, C; Hebbeln, Dierk; Kissel, Catherine; Laj, C; Mollenhauer, Gesine; Tiedemann, Ralf (2011): Millennial-scale sea surface temperature and Patagonian Ice Sheet changes off southernmost Chile (53°S) over the past ~60 kyr. Paleoceanography, 26, PA3221 ...

Similar Items