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Bibliographic Details
Main Authors: Lauretano, Vittoria, Kennedy-Asser, Alan T, Korasidis, Vera A, Wallace, Malcolm W, Valdes, Paul J, Lunt, Daniel J, Pancost, Richard D, Naafs, Bernhard David A
Format: Dataset Open Access
Language:en
Published: PANGAEA 2021
Subjects:
Australia; Biomarkers; Deep Sea Drilling Project; DSDP; Eocene-Oligocene Transition; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Ocean Drilling Program; ODP; Paleotemperature; terrestrial temperatures
Online Access:https://doi.org/10.1594/PANGAEA.933176
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Table of Contents:
  • The greenhouse to icehouse climate transition from the Eocene into the Oligocene is well-documented by sea surface temperature records from the southwest Pacific and Antarctic margin that show evidence of pronounced long-term cooling. However, identification of a driving mechanism depends on a better understanding of whether this cooling was also present in terrestrial settings. Here, we present a semi-continuous terrestrial temperature record spanning from the middle Eocene to the early Oligocene (~41-33 Ma), using bacterial molecular fossils (biomarkers) preserved in a sequence of SE Australian lignites from two locations. We reconstruct terrestrial temperatures and compare them to existing sea-surface temperature records from the Southern Hemisphere from the middle Eocene to Early Oligocene.

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