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Lo Giudice Capelli, Elena; Holbourn, Ann E; Kuhnt, Wolfgang; Regenberg, Marcus (2016): Multi-proxy record of planktonic and benthic foraminiferal δ¹⁸O, and Mg/Ca-derived surface and lower thermocline temperatures in sediment core SO18471 (GIK18471), Timor Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.864735, Supplement to: Lo Giudice Capelli, E et al. (2016): Changes in Timor Strait hydrology and thermocline structure during the past 130ka. Palaeogeography, Palaeoclimatology, Palaeoecology, 462, 112-124, https://doi.org/10.1016/j.palaeo.2016.09.010

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Abstract:
Paleostudies of the Indonesian Throughflow (ITF) are largely based on temperature and salinity reconstructions of its near surface component, whereas the variability of its lower thermocline flow has rarely been investigated. We present a multi-proxy record of planktonic and benthic foraminiferal d18O, Mg/Ca-derived surface and lower thermocline temperatures, X-ray fluorescence (XRF)-derived runoff and sediment winnowing for the past 130 ka in marine sediment core SO18471. Core SO18471, retrieved from a water depth of 485 m at the southern edge of the Timor Strait close to the Sahul Shelf, sits in a strategic position to reconstruct variations in both the ITF surface and lower thermocline flow as well as to investigate hydrological changes related to monsoon variability and shelf dynamics over time. Sediment winnowing demonstrates that the ITF thermocline flow intensified during MIS 5d-a and MIS 1. In contrast during MIS 5e, winnowing was reduced and terrigenous input increased suggesting intensification of the local wet monsoon and a weaker ITF. Lower thermocline warming during globally cold periods (MIS 4 - MIS 2) appears to be related to a weaker and contracted thermocline ITF and advection of warm and salty Indian Ocean waters.
Coverage:
Latitude: -9.366450 * Longitude: 129.983050
Date/Time Start: 2005-09-19T17:39:00 * Date/Time End: 2005-09-19T17:39:00
Event(s):
GIK18471-1 * Latitude: -9.366450 * Longitude: 129.983050 * Date/Time: 2005-09-19T17:39:00 * Elevation: -485.0 m * Penetration: 15 m * Recovery: 13.5 m * Location: Timor Sea * Campaign: SO185 (VITAL) * Basis: Sonne * Method/Device: Piston corer (BGR type) (KL)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
4 datasets

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Datasets listed in this publication series

  1. Lo Giudice Capelli, E; Holbourn, AE; Kuhnt, W et al. (2016): Mg/Ca ratios and δ¹⁸O of Hoeglundina elegans, Uvigerina spp.and G. ruber, derived relative sea level, bottom water and sea surface temperature in sediment core SO18471 (GIK18471) from the Timor Sea. https://doi.org/10.1594/PANGAEA.864731
  2. Lo Giudice Capelli, E; Holbourn, AE; Kuhnt, W et al. (2016): Mg/Ca ratios of Hoeglundina elegans and derived bottom water temperature with 5 cm resolution over MIS 1 and 2 in sediment core SO18471 (GIK18471) from the Timor Sea. https://doi.org/10.1594/PANGAEA.864732
  3. Lo Giudice Capelli, E; Holbourn, AE; Kuhnt, W et al. (2016): Tie point depth, age and sedimentation rate of sediment core SO18471 (GIK18471) from the Timor Sea. https://doi.org/10.1594/PANGAEA.864734
  4. Lo Giudice Capelli, E; Holbourn, AE; Kuhnt, W et al. (2016): log Zr/Rb and log terrestrial/Ca ratio in sediment core SO18471 (GIK18471) from the Timor Sea. https://doi.org/10.1594/PANGAEA.864733