Sediment accumulation off reef platforms in Torres Strait

Leon, Javier, Woodroffe, Colin and Hart, Deirdre (2010). Sediment accumulation off reef platforms in Torres Strait. In: NZGS2010 Abstracts. New Zealand Geographical Society and the Institute of Australian Geographers Conference, Christchurch, New Zealand, (171-171). 5-8 July 2010.

Author Leon, Javier
Woodroffe, Colin
Hart, Deirdre
Title of paper Sediment accumulation off reef platforms in Torres Strait
Conference name New Zealand Geographical Society and the Institute of Australian Geographers Conference
Conference location Christchurch, New Zealand
Conference dates 5-8 July 2010
Proceedings title NZGS2010 Abstracts
Publication Year 2010
Sub-type Oral presentation
Start page 171
End page 171
Total pages 1
Language eng
Abstract/Summary Cyclone-induced asymmetric currents have been attributed to the transport of sediment and resultant accumulation of carbonate sediments in the lee of coral reefs of the Great Barrier Reef and the Gulf of Carpentaria. These deposits, termed leeward accretionary wedges or talus deposits, have been also observed in the lee of emerged reefs in central Torres Strait. Torres Strait is outside the tropical cyclone belt and only 16 cyclones have tracked within 200 km of this region in the last 100 years. We propose that yearly monsoonal winds are the main processes inducing sediment transport off the productive leeward forereefs. A preliminary analysis of the morphology and sediment composition in Warraber reef suggests a progressive accumulation of sediment sourced from the reef platform since the early mid- Holocene, resulting in an approximated accumulation rate of 2,000 CaCO3 m3/yr-1. The sediment accumulation off the platform is almost five times greater than sediment accumulating on the reef platform.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status Non-UQ
Additional Notes Paper Ref No. LEO10187

Document type: Conference Paper
Collection: Global Change Institute Publications
 
Versions
Version Filter Type
Citation counts: Google Scholar Search Google Scholar
Created: Fri, 21 Oct 2011, 17:09:57 EST by Mr Javier Leon Patino on behalf of Global Change Institute