Coupled ocean-land millennial-scale changes 1.26 million years ago, recorded at Site U1385 off Portugal

Tzedakis, P. C. and Margari, V. and Hodell, D. A. (2015) Coupled ocean-land millennial-scale changes 1.26 million years ago, recorded at Site U1385 off Portugal. Global and Planetary Change, 135. pp. 83-88. ISSN 0921-8181 DOI 10.1016/j.gloplacha.2015.10.008

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Abstract

While a growing body of evidence indicates that North Atlantic millennial-scale climate variability extends to the Early Pleistocene, its impact on terrestrial ecosystems has not been established. Here we present ultra-high resolution (70–140 year) joint foraminiferal isotopic and pollen analyses from IODP Site U1385 off Portugal, focusing on a short glacial section of Marine Isotope Stage 38, ~ 1.26 million years ago. Our records reveal the presence of millennial-scale variability in the coupled ocean–atmosphere–land system in the North Atlantic and provide the first direct evidence for the response of western Iberian vegetation to abrupt climate changes in the Early Pleistocene. The magnitude and pacing of changes bear significant similarities to Dansgaard–Oeschger variability of the last two glacials.

Item Type: Article
Uncontrolled Keywords: 2015AREP; IA70
Subjects: 01 - Climate Change and Earth-Ocean Atmosphere Systems
Divisions: 01 - Climate Change and Earth-Ocean Atmosphere Systems
07 - Gold Open Access
Journal or Publication Title: Global and Planetary Change
Volume: 135
Page Range: pp. 83-88
Identification Number: 10.1016/j.gloplacha.2015.10.008
Depositing User: Sarah Humbert
Date Deposited: 28 Apr 2016 11:21
Last Modified: 28 Apr 2016 11:21
URI: http://eprints.esc.cam.ac.uk/id/eprint/3647

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