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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 (2021): Middle Eocene to early Oligocene lignite brGDGT-derived temperatures and pH, biomarker data and TOC% from SE Australia [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.933176

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Abstract:
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.
Keyword(s):
Australia; Biomarkers; Eocene-Oligocene Transition; paleotemperature; terrestrial temperatures
Supplement to:
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 (in review): Eocene to Oligocene terrestrial Southern Hemisphere cooling caused by declining pCO2. Nature Geoscience
Project(s):
Deep Sea Drilling Project (DSDP)
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -41.518156 * Median Longitude: 94.017118 * South-bound Latitude: -69.000000 * West-bound Longitude: -120.160000 * North-bound Latitude: 75.300000 * East-bound Longitude: 166.191300
Date/Time Start: 1973-03-11T00:00:00 * Date/Time End: 2000-05-03T21:00:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
6 datasets

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Datasets listed in this bundled publication

  1. Lauretano, V; Kennedy-Asser, AT; Korasidis, VA et al. (2021): Middle Eocene to early Oligocene SST record of DSDP Hole 29-277. https://doi.org/10.1594/PANGAEA.933167
  2. Lauretano, V; Kennedy-Asser, AT; Korasidis, VA et al. (2021): Middle Eocene to early Oligocene SST record of DSDP Hole 71-511. https://doi.org/10.1594/PANGAEA.933168
  3. Lauretano, V; Kennedy-Asser, AT; Korasidis, VA et al. (2021): Middle Eocene to early Oligocene SST record of ODP Site 189-1172. https://doi.org/10.1594/PANGAEA.933169
  4. Lauretano, V; Kennedy-Asser, AT; Korasidis, VA et al. (2021): Middle Eocene to early Oligocene SST record of IODP Site 318-U1356. https://doi.org/10.1594/PANGAEA.933170
  5. Lauretano, V; Kennedy-Asser, AT; Korasidis, VA et al. (2021): Middle Eocene to early Oligocene biomarker data and TOC% from SE Australia. https://doi.org/10.1594/PANGAEA.933172
  6. Lauretano, V; Kennedy-Asser, AT; Korasidis, VA et al. (2021): Middle Eocene to early Oligocene geochemical temperature proxies. https://doi.org/10.1594/PANGAEA.933173