Aggregate size distribution of selected terengganu beach area

In general,the terengganu beaches consist mainly of medium- to coarse-grained sand. grain sizes were determined by dry sieving sediments; samples represent the upper 15 cm of surficial sediment,collected from the three main geomorphological tidal units during one year observation periods,covering the southwest and northeast monsoon seasons. the result demonstrates a good relationship between the monsoonal processes and the corresponding geomorphological elements. there are some differences between the various geomorphological tidal units,with a subtle trend from the low tide to high tide zone. grain size decreases slightly from the low tide to the high tide. the sediment size fraction averaging from -0.48phi to 1.87phi. the most fine material was found at kuala besut (northernmost terengganu) while the coarsest particle was found at seberang takir. however,the grain size parameters at different beach locations do not suggest a general trend of long-shore variations,except on the beach close to the river mouth. the differences between the seasons were larger than those between the geomorphological tidal units. during the northeast monsoon the mean size was coarser,sorting was worse and the distribution was more positively skewed. © 2015 penerbit utm press. all rights reserved.