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Grant, Katharine M; Amarathunga, Udara; Amies, Jessica; Hu, Pengxiang; Qian, Yao; Penny, Tiah; Rodriguez-Sanz, Laura; Zhao, Xiang; Heslop, David; Liebrand, Diederik; Hennekam, Rick; Westerhold, Thomas; Gilmore, Stewart; Lourens, Lucas Joost; Roberts, Andrew; Rohling, Eelco J (2022): Plio-Pleistocene scanning XRF, stable isotope, and environmental magnetic data from ODP Site 967 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.939929

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Published: 2022-01-11 • DOI registered: 2022-01-14

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Abstract:
Mediterranean sediments record past changes in North African aridity/humidity changes (so-called 'Green Sahara periods') on orbital timescales. These changes are reflected in the alternating accumulation of organic carbon-rich and aeolian dust enriched sediments, and negative stable oxygen isotope excursions. Here we document these changes over the past 5 million years using scanning x-ray fluorescence (XRF) of ODP Site 967 sediments, measured with a 3rd generation Avaatech XRF core scanner. Element counts were converted into element concentrations for Al [ppm], Si [ppm], S [ppm], K [ppm], Ca [ppm], Ti [ppm], Fe [ppm], Sr [ppm], Zr [ppm] and Ba [ppm], based on a multivariate log-ratio calibration. Stable carbon and oxygen isotope data of the surface-dwelling planktonic foraminifer Globigerinoides ruber (white), sensu stricto at high sampling resolution (typically every 1-3 cm downcore) were measured using a Thermo Fisher Scientific Delta Advantage mass spectrometer coupled to a Kiel IV carbonate device. A bulk sediment isothermal remanence magnetism record (“IRM900@120mT”) was measured using a 2-G Enterprises cryogenic magnetometer. The IRM900@120mT proxy represents isothermal remanence magnetism after imparting a 900 mT induction in a direct current field, followed by alternating field (AF) demagnetization in a peak 120 mT field at high sampling resolution (every 1 cm downcore).
Keyword(s):
Africa; dust; Green Sahara Period; Mediterranean; Pleistocene; Pliocene; sapropel
Related to:
Grant, Katharine M; Amarathunga, Udara; Amies, Jessica; Hu, Pengxiang; Qian, Yao; Penny, Tiah; Rodriguez-Sanz, Laura; Zhao, Xiang; Heslop, David; Liebrand, Diederik; Hennekam, Rick; Westerhold, Thomas; Gilmore, Stewart; Lourens, Lucas Joost; Roberts, Andrew P; Rohling, Eelco J (2022): Organic carbon burial in Mediterranean sapropels intensified during Green Sahara Periods since 3.2 Myr ago. Communications Earth & Environment, 3, 11, https://doi.org/10.1038/s43247-021-00339-9
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 34.069625 * Median Longitude: 32.725450 * South-bound Latitude: 34.068300 * West-bound Longitude: 32.725300 * North-bound Latitude: 34.071100 * East-bound Longitude: 32.725600
Date/Time Start: 1995-04-01T23:50:00 * Date/Time End: 1995-04-03T21:15:00
Event(s):
160-967 * Latitude: 34.069600 * Longitude: 32.725433 * Date/Time Start: 1995-04-01T00:00:00 * Date/Time End: 1995-04-03T00:00:00 * Elevation: -2553.2 m * Penetration: 1003.2 m * Recovery: 487.4 m * Location: Eastern Basin * Campaign: Leg160 * Basis: Joides Resolution * Method/Device: Composite Core (COMPCORE) * Comment: 97 cores; 891.3 m cored; 0 m drilled; 54.7% recovery
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
3 datasets

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Datasets listed in this bundled publication

  1. Grant, KM; Amarathunga, U; Amies, J et al. (2022): Plio-Pleistocene environmental magnetic data from ODP Site 967, Eastern Mediterranean. https://doi.org/10.1594/PANGAEA.939859
  2. Grant, KM; Amarathunga, U; Amies, J et al. (2022): Plio-Pleistocene planktonic foraminifer Globigerinoides ruber stable oxygen and carbon isotopes from ODP Site 967, Eastern Mediterranean. https://doi.org/10.1594/PANGAEA.939856
  3. Grant, KM; Amarathunga, U; Amies, J et al. (2022): Plio-Pleistocene scanning x-ray fluorescence (XRF) data from ODP Site 967, Eastern Mediterranean. https://doi.org/10.1594/PANGAEA.939850