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Kochhann, Karlos Guilherme Diemer; Holbourn, Ann E; Kuhnt, Wolfgang; Xu, Jian (2021): Benthic foraminiferal distribution and deep water temperature changes during the early to middle Miocene, IODP Exp321 sites [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.930458

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Abstract:
Here we present benthic foraminiferal counts, Mg/Ca-based bottom water temperature (BWT) estimates, and benthic stable oxygen and carbon (δ18O and δ13C) isotope records for the early-middle Miocene interval of sites located in the equatorial Pacific Ocean. Benthic foraminiferal counts and accumulation rates are reported for Integrated Ocean Drilling Program (IODP) Sites U1337 and U1338; total assemblages counts were performed in the >150 µm grain size sediment fractions and Epistominella exigua counts were carried out in the >63 µm grain size sediment fractions. Mg/Ca ratios were measured on Oridorsalis umbonatus and used to estimated BWTs at Sites U1337 and U1338, and at Ocean Drilling Project (ODP) Site 1146. For intervals where Mg/Ca ratios could have been affected by carbonate dissolution, we did not estimate BWTs and reported only the Mg/Ca ratios. Benthic stable oxygen and carbon isotope records were measured on Cibicidoides mundulus/C. wuellerstorfi at Site U1338. Our datasets allow to reconstruct BWT changes and reorganizations among benthic foraminiferal assemblages during the Miocene Climatic Optimum and middle Miocene climatic transition in the eastern and western Equatorial Pacific Ocean.
Keyword(s):
Benthic foraminifera; Eastern Equatorial Pacific Ocean; Integrated Ocean Drilling Program Sites U1337 and U1338; Mg/Ca-based paleotemperatures; Miocene Climatic Optimum
Related to:
Kochhann, Karlos Guilherme Diemer; Holbourn, Ann E; Kuhnt, Wolfgang; Xu, Jian (2017): Eastern equatorial Pacific benthic foraminiferal distribution and deep water temperature changes during the early to middle Miocene. Marine Micropaleontology, 133, 28-39, https://doi.org/10.1016/j.marmicro.2017.05.002
Project(s):
Integrated Ocean Drilling Program / International Ocean Discovery Program (IODP)
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 5.774503 * Median Longitude: -140.674823 * South-bound Latitude: 2.507812 * West-bound Longitude: 116.272710 * North-bound Latitude: 19.456680 * East-bound Longitude: -117.969560
Date/Time Start: 1999-03-21T23:45:00 * Date/Time End: 1999-03-25T13:30:00
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
6 datasets

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Datasets listed in this publication series

  1. Kochhann, KGD; Holbourn, AE; Kuhnt, W et al. (2021): Mg/Ca ratios of Oridorsalis umbonatus and botton water temperature reconstruction for ODP Hole 184-1146A. https://doi.org/10.1594/PANGAEA.930432
  2. Kochhann, KGD; Holbourn, AE; Kuhnt, W et al. (2021): Mg/Ca ratios of Oridorsalis umbonatus from IODP Site 321-U1337. https://doi.org/10.1594/PANGAEA.930453
  3. Kochhann, KGD; Holbourn, AE; Kuhnt, W et al. (2021): Benthic foraminifera of IODP sites 321-U1337 and 321-U1337. https://doi.org/10.1594/PANGAEA.930457
  4. Kochhann, KGD; Holbourn, AE; Kuhnt, W et al. (2021): Epistominella exigua counts in IODP sites 321-U1337 and 321-U1338. https://doi.org/10.1594/PANGAEA.930455
  5. Kochhann, KGD; Holbourn, AE; Kuhnt, W et al. (2021): Stable isotopes of benthic foraminifera of IODP Site 321-U1338. https://doi.org/10.1594/PANGAEA.930456
  6. Kochhann, KGD; Holbourn, AE; Kuhnt, W et al. (2021): Mg/Ca ratios of Oridorsalis umbonatus and botton water temperature reconstruction for IODP Site 321-U1338. https://doi.org/10.1594/PANGAEA.930454