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Dansgaard‐Oeschger and Heinrich event imprints in Alboran Sea paleotemperatures

Cacho, Isabel, Grimalt, Joan O, Pelejero, Carles, Canals, Miquel, Sierro, Francisco J., Flores, José Abel, Shackleton, Nick·1999·Paleoceanography

Abstract

Past sea surface temperature (SST) evolution in the Alboran Sea (western Mediterranean) during the last 50,000 years has been inferred from the study of C 37 alkenones in International Marine Global Change Studies MD952043 core. This record has a time resolution of ∼200 years allowing the study of millennial‐scale and even shorter climatic changes. The observed SST curve displays characteristic sequences of extremely rapid warming and cooling events along the glacial period. Comparison of this Alboran record with δ 18 O from Greenland ice (Greenland Ice Sheet Project 2 core) shows a strong parallelism between these SST oscillations and the Dansgaard‐Oeschger events. Five prominent cooling episodes standing out in the SST profile are accompanied by an anomalous high abundance of Neogloboquadrina pachyderma sinistral which is confined to the duration of these cold intervals. These features and the isotopic record reflect drastic changes in the surface hydrography of the Alboran Sea in association with Heinrich events Hl–5.

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Metadata

Authors
Cacho, I., Grimalt, J. O., Pelejero, C., Canals, M., Sierro, F. J., Flores, J. A., & Shackleton, N.
Venue
Paleoceanography
Published
1999-12
Volume
14
Issue
6
Pages
698-705
ISSN
  • 0883-8305 (ISSN-L)
  • 1944-9186
OpenAlex
W2079313912
Cited by
615
References
2
FWCI
8.50
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Dansgaard‐Oeschger and Heinrich event imprints in Alboran Sea paleotemperatures. https://app.cochat.ai/papers/10.1029/1999pa900044
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Cacho, I., Grimalt, J. O., Pelejero, C., Canals, M., Sierro, F. J., Flores, J. A., & Shackleton, N. (1999). Dansgaard‐Oeschger and Heinrich event imprints in Alboran Sea paleotemperatures. Paleoceanography. https://doi.org/10.1029/1999pa900044

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