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Beasley, Charlotte; Kender, Sev; Giosan, Liviu; Anand, Pallavi; Leng, Melanie J; Nilsson-Kerr, Katrina; Ullmann, Clemens V; Hesselbo, Stephen P; Littler, Kate (2021): Benthic and planktic carbon and oxygen isotopes, planktic trace elements, XRF-derived elemental ratios from Site NGHP-01-01A [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.931901

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Abstract:
The evolution of the South Asian monsoon (SAM) is not well-constrained prior to the Pleistocene, primarily due to a lack of recovered marine sediment archives. This study presents geochemical data from Site NGHP-01-01A in the eastern Arabian Sea from the Oligocene to Early Miocene (~32–20 Ma) to reconstruct the oceanographic evolution of this region through this interval. Analyses consist of planktic and benthic foraminiferal oxygen and carbon isotopes, and planktic foraminiferal trace elements (Mg/Ca and Mn/Ca), as well as seawater d18O (d18Osw) and Mg/Ca-derived temperatures. Along with XRF-derived elemental analysis, these reveal the Oligocene–Miocene transition (~23.7–22.7 Ma) to be a key initiation/intensification of the proto-SAM system, with the development of an intense oxygen minimum zone and monsoonal atmospheric circulation.
Keyword(s):
Foraminiferal geochemistry; oxygen and carbon isotopes; Temperature; trace element
Supplement to:
Beasley, Charlotte; Kender, Sev; Giosan, Liviu; Bolton, Clara T; Anand, Pallavi; Leng, Melanie J; Nilsson-Kerr, Katrina; Ullmann, Clemens V; Hesselbo, Stephen P; Littler, Kate (2021): Evidence of a South Asian Proto‐Monsoon During the Oligocene‐Miocene Transition. Paleoceanography and Paleoclimatology, 36(9), e2021PA004278, https://doi.org/10.1029/2021PA004278
Coverage:
Latitude: 15.306100 * Longitude: 70.903200
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
2 datasets

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Datasets listed in this bundled publication

  1. Beasley, C; Kender, S; Giosan, L et al. (2021): Benthic and planktic carbon and oxygen isotopes, planktic trace elements from Site NGHP-01-01A. https://doi.org/10.1594/PANGAEA.931900
  2. Beasley, C; Kender, S; Giosan, L et al. (2021): XRF-derived elemental ratios from Site NGHP-01-01A. https://doi.org/10.1594/PANGAEA.931897