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Karatsolis, Boris Theofanis; De Vleeschouwer, David; Groeneveld, Jeroen; Christensen, Beth A; Henderiks, Jorijntje (2020): Late Miocene to Pliocene Natural Gamma Ray Potassium (K wt%) record, nannofossil abundances and accumulation rates and benthic foraminifera δ¹⁸O isotopes from the NW Australian shelf (IODP Sites U1463, U1464) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.919913

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Published: 2020-07-07 • DOI registered: 2020-08-05

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Abstract:
Pre-Quaternary paleoclimate studies in Australia mainly focus on terrestrial records from the southeastern part of the continent. IODP Expedition 356 drilled on the northwestern Australian shelf, yielding Miocene-Pleistocene paleoclimate records in an area where climate archives are scarce. Post-expedition research revealed a dry-to–humid transition across the latest Miocene and early Pliocene (start of the “Humid Interval”). However, the complex tectonic history of the area makes these interpretations challenging. Here, we investigate late Miocene to early Pliocene sediment cores from two sites that are only 100 km apart, but situated in two adjacent basins (Northern Carnarvon and Roebuck Basins). Combining lithofacies study, time-series analysis of NGR potassium content (K wt%), calcareous nannofossil abundance counts (N/g) and accumulation rates (N/cm2/kyr), as well as benthic foraminifera δ¹⁸O, this work disentangles the complex interplay between basin evolution and climate change between 6.1-4 million years ago (Ma).
Keyword(s):
benthic foraminifera isotopes; coccolith abundances; IODP Exp. 356; K wt%; nannofossil Accumulation Rates
Supplement to:
Karatsolis, Boris Theofanis; De Vleeschouwer, David; Groeneveld, Jeroen; Christensen, Beth A; Henderiks, Jorijntje (2020): The Late Miocene to Early Pliocene “Humid Interval” on the NW Australian Shelf: Disentangling Climate Forcing From Regional Basin Evolution. Paleoceanography and Paleoclimatology, 35(9), https://doi.org/10.1029/2019PA003780
Coverage:
Median Latitude: -18.450938 * Median Longitude: 118.199328 * South-bound Latitude: -18.965490 * West-bound Longitude: 117.623000 * North-bound Latitude: -18.065000 * East-bound Longitude: 118.631558
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
7 datasets

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Datasets listed in this bundled publication

  1. Karatsolis, BT; Henderiks, J; De Vleeschouwer, D et al. (2020): Astronomically tuned Natural Gamma Ray potassium (K wt%) record from different samples of IODP Site 356-U1463. https://doi.org/10.1594/PANGAEA.912587
  2. Karatsolis, BT; Henderiks, J; De Vleeschouwer, D et al. (2020): Dated nannofossil absolute and relative abundance record from IODP Hole 356-U1463B and 356-U1463C. https://doi.org/10.1594/PANGAEA.912590
  3. Karatsolis, BT; Henderiks, J; De Vleeschouwer, D et al. (2020): Dated nannofossil accumulation rates (NAR) from IODP Site 356-U1463B and 356-U1463C. https://doi.org/10.1594/PANGAEA.912610
  4. Karatsolis, BT; Henderiks, J; De Vleeschouwer, D et al. (2020): Dated nannofossil accumulation rates (NAR) from IODP Hole 356-U1464B. https://doi.org/10.1594/PANGAEA.912602
  5. Karatsolis, BT; Henderiks, J; De Vleeschouwer, D et al. (2020): Astronomically tuned Natural Gamma Ray potassium (K wt%) record from different samples of IODP Site 356-U1464. https://doi.org/10.1594/PANGAEA.912595
  6. Karatsolis, BT; Henderiks, J; De Vleeschouwer, D et al. (2020): Dated nannofossil absolute and relative abundance record from IODP Hole 356-U1464B. https://doi.org/10.1594/PANGAEA.912599
  7. Karatsolis, BT; Henderiks, J; De Vleeschouwer, D et al. (2020): Benthic foraminifera oxygen isotopes from IODP Hole 356-U1464D. https://doi.org/10.1594/PANGAEA.912592