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Gallagher, Stephen John; Villa, Giuliana; Drysdale, Russell N; Wade, Bridget S; Scher, Howie D; Li, Qianyu; Wallace, Malcolm W; Holdgate, Guy R (2013): Microfossil, stable isotope, and facies of a near-continuous core from the Gippsland Basin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.823093, Supplement to: Gallagher, SJ et al. (2013): A near-field sea level record of East Antarctic Ice Sheet instability from 32 to 27 Myr. Paleoceanography, 28(1), 1-13, https://doi.org/10.1029/2012PA002326

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Published: 2013-11-20 • DOI registered: 2013-12-18

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Abstract:
Fossil, facies, and isotope analyses of an early high-paleolatitude (55°S) section suggests a highly unstable East Antarctic Ice Sheet from 32 to 27 Myr. The waxing and waning of this ice sheet from 140% to 40% of its present volume caused sea level changes of ±25 m (ranging from -30 to +50 m) related to periodic glacial (100,000 to 200,000 years) and shorter interglacial events. The near-field Gippsland sea level (GSL) curve shares many similarities to the far-field New Jersey sea level (NJSL) estimates. However, there are possible resolution errors due to biochronology, taphonomy, and paleodepth estimates and the relative lack of lowstand deposits (in NJSL) that prevent detailed correlations with GSL. Nevertheless, the lateral variations in sea level between the GSL section and NJSL record that suggest ocean siphoning and antisiphoning may have propagated synchronous yet variable sea levels.
Coverage:
Latitude: -38.941700 * Longitude: 147.415600
Event(s):
Groper-1 * Latitude: -38.941700 * Longitude: 147.415600 * Location: Australia * Method/Device: Sampling Well (WELL)
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. Gallagher, SJ; Villa, G; Drysdale, RN et al. (2013): (Table S2) Carbonat content, facies and bulk isotope ratios of well Groper-1. https://doi.org/10.1594/PANGAEA.823089
  2. Gallagher, SJ; Villa, G; Drysdale, RN et al. (2013): (Table S1) Stable carbon and oxygen isotope ratios of Cibicidoides from well Groper-1. https://doi.org/10.1594/PANGAEA.823088
  3. Gallagher, SJ; Villa, G; Drysdale, RN et al. (2013): (Table S4) Paleodepths and sea level variability reconstruction for well Groper-1. https://doi.org/10.1594/PANGAEA.823090
  4. Gallagher, SJ; Villa, G; Drysdale, RN et al. (2013): (Table S5) Estimated physical properties and paleodepth reconstruction for well Groper-1. https://doi.org/10.1594/PANGAEA.823091