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Wienberg, Claudia; Westphal, Hildegard; Kwoll, Eva; Hebbeln, Dierk (2010): Component analysis of three TV-guided grab sampler from the Sahul Shelf (NW Australia) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.744810, Supplement to: Wienberg, C et al. (2010): An isolated carbonate knoll in the Timor Sea (Sahul Shelf, NW Australia): facies zonation and sediment composition. Facies, 56(2), 179-193, https://doi.org/10.1007/s10347-009-0202-8

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Abstract:
This paper constitutes a first detailed and systematic facies and biota description of an isolated carbonate knoll (Pee Shoal) in the Timor Sea (Sahul Shelf, NW Australia). The steep and flat-topped knoll is characterized by a distinct facies zonation comprising (A) soft sediments with scattered debris and scarce sponges, hydrozoans and crinoids (320-210 m water depth), (B) hardground outcrops (step-like banks, vertical cliffs) that are mainly colonized by octocorals and sponges (210-75 m), and (C) the summit region (75-21 m) where the slopes merge gently into the flat-topped summit that is densely colonized by massive and encrusting zooxanthellate corals and the octocoral Heliopora coerulea. In contrast, the sediments recovered from the summit are dominated by the green alga Halimeda, subordinate components are corals, benthic foraminifers, mollusks, and coralline red algae. Thus, the sediments are classified as chlorozoan grain assemblage. However, non-skeletal grains (fecal pellets, ooids) are almost completely absent. This discrepancy between the living biota and the sediment composition could reflect a disruption by the severe tropical cyclone Ingrid that hit the northern Australian shelf in March 2005, just before the sampling for this study took place (September 2005).
Project(s):
Center for Marine Environmental Sciences (MARUM)
Coverage:
Median Latitude: -11.012669 * Median Longitude: 124.013795 * South-bound Latitude: -11.012717 * West-bound Longitude: 124.013781 * North-bound Latitude: -11.012631 * East-bound Longitude: 124.013808
Date/Time Start: 2005-09-10T06:07:00 * Date/Time End: 2005-09-10T07:36:00
Event(s):
GeoB10071-3 * Latitude: -11.012631 * Longitude: 124.013808 * Date/Time: 2005-09-10T06:07:00 * Elevation: -22.0 m * Campaign: SO184/2 (PABESIA) * Basis: Sonne * Method/Device: Television-Grab (TVG)
GeoB10071-4 * Latitude: -11.012658 * Longitude: 124.013797 * Date/Time: 2005-09-10T06:46:00 * Elevation: -20.0 m * Campaign: SO184/2 (PABESIA) * Basis: Sonne * Method/Device: Television-Grab (TVG)
GeoB10071-5 * Latitude: -11.012717 * Longitude: 124.013781 * Date/Time: 2005-09-10T07:36:00 * Elevation: -31.0 m * Campaign: SO184/2 (PABESIA) * Basis: Sonne * Method/Device: Television-Grab (TVG)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
3 datasets

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Datasets listed in this publication series

  1. Wienberg, C; Westphal, H; Kwoll, E et al. (2010): Component analysis of TV-guided grab sampler GeoB10071-3. https://doi.org/10.1594/PANGAEA.744801
  2. Wienberg, C; Westphal, H; Kwoll, E et al. (2010): Component analysis of TV-guided grab sampler GeoB10071-4. https://doi.org/10.1594/PANGAEA.744802
  3. Wienberg, C; Westphal, H; Kwoll, E et al. (2010): Component analysis of TV-guided grab sampler GeoB10071-5. https://doi.org/10.1594/PANGAEA.744807