Sedimentation in a Malaysian High Tide Tropical Delta

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Abstract
The compound delta of the Klang and Langat Rivers illustrates the processes, morphology andsedimentary framework associated with a number of small high tidal deltas found in tropical southeast Asia. Both the delta and its catchment basin are located in the wet tropics and have mean annual rainfall ranging from 80 to 110 inches. Wave-energy levels along the delta coast are low to moderate. However, the range of mean spring tides is 14 feet; therefore, tidal processes dominate sediment dispersal patterns and control delta form. Characteristics of the delta include parallel ridge-and-trough bottom topography on the sea floor in the delta vicinity, large areas of low tide flats, complex networks of streams that serve the dual function of tidal streams and river distributaries, extensive mangrove swamps, and large fresh-water peat swamps. Associated with these features and environments are distinctive sedimentary facies. This volume was based on a symposium, Deltaic Sedimentation, which was held at the AAPG/SEPM Annual Meeting in New Orleans, Louisiana on April 1965. Many geologists have become involved in studies of deltaic sediments and sedimentation processes. Some of the papers in this volume are based on detailed local studies of modern deltaic sedimentary sequences, on processes of deposition, and on physical and biological characteristics of the deltaic environments.

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