Composition and textural variability along the 10 m isobath, Great Barrier Reef: Evidence for pervasive northward sediment transport

Lambeck, A., and Woolfe, K.J. (2000) Composition and textural variability along the 10 m isobath, Great Barrier Reef: Evidence for pervasive northward sediment transport. Australian Journal of Earth Sciences, 47 (2). pp. 327-335.

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Abstract

Previous workers have proposed that northward-directed bedload transport dominates the inner shelf of the Great Barrier Reef lagoon. Results from a sediment sampling survey along the 10 m isobath between Bowen and Cape York reveal a series of northward trends of increasing sediment maturity and demonstrate pervasive north-directed sediment transport interacting with a succession of sediment (fluvial) sources. South of the Tully River, the occurrence of limited compositional variability indicates significant mixing on the inner shelf. However, further north the data are highly variable, suggesting that sediment inputs from individual rivers may be retained relatively close to source. This may be related to a greater sediment trapping efficiency within northern embayments and/or by lower net rates of along-shelf transport.

Item ID: 12777
Item Type: Article (Refereed Research - C1)
Keywords: grainsize analysis; Great Barrier Reef; inner continental shelf; sediment transport
ISSN: 1440-0952
Date Deposited: 16 Jul 2012 23:50
FoR Codes: 04 EARTH SCIENCES > 0403 Geology > 040310 Sedimentology @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970104 Expanding Knowledge in the Earth Sciences @ 100%
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