Journal
GEOMORPHOLOGY
Volume 222, Issue -, Pages 3-13Publisher
ELSEVIER
DOI: 10.1016/j.geomorph.2014.03.014
Keywords
Red Sea; Carbonate system; Coral reef; Morphology; GIS; Remote sensing
Funding
- National Coral Reef Institute (NCRI)
- Khaled bin Sultan Living Oceans Foundation (KBSLOF)
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Coral reefs and their associated accumulations of carbonate sediment adopt particularly complex planform geometries atop the coastal shelf of the Saudi Arabian Red Sea. By assembling 95,000 km(2) of remote sensing data into a GIS, this study aims to relate the morphology of these shallow-water depositional environments to processes that sculpt the coastal zone. A typology that sorts carbonate systems into end-members on the basis of their morphology and relationship to the coastline is developed. The resulting GIS was interrogated for spatial patterns in the distribution and abundance of the end-members. While several depositional morphologies are present throughout the length of the Saudi Arabian Red Sea, the occurrence of others is restricted to narrow regions of latitude. Such differences in distribution can be explained in process-terms by the rift tectonics of the Red Sea basin, spatial variability in the presence of sub-seafloor evaporites, and the input of siliciclastic detritus onto the coastal shelf via wadis. This paper provides a foundation for understanding the morphological diversity of shallow-water carbonate systems in both the modern ocean and rock records. (C) 2014 Elsevier B.V. All rights reserved.
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