Seasonal Variations of Sediment Grain Sizes at Bangsean Beach in 2014
Abstract
Seasonal variations in sediment grain sizes at Bangsean beach in January, March, May, July and November of year 2014 were studied. Three sampling sites, each approximately 500 m apart, including Laemtan beach, Bangsaen beach and Wonnapha beach were selected. The sediment was collected during low-tide period at 0, 20, 40 and 60 m away from the shoreline at each sampling site. Percent sediment dry-weight (g) was determined by using sieve analysis technique. The results showed that the beach sediment was well mixed between fine sand and very coarse sand. The average value of the coefficient of assorted sizes of sediments (CC) and the coefficient of uniformity (CU) were 0.86 and 2.58, respectively. Very coarse sand and coarse sand sediments were not significantly different in each month (P>0.05), while medium sand, fine sand, very fine sand and silt & clay were (P<0.05). Comparing the grain sizes among sampling sites suggested that medium sand sediment at Bangsaen beach be significantly different from that at Laemtan beach and Wonnapha beach in January and July (P<0.05). Fine sand sediment at Laemtan beach was significantly different from that at Bangsaen and Wonnapha beach in March (P<0.05). Very fine sand sediment at Laemtan beach is significantly different from that at Bangsaen and Wonnapha beach in January (P<0.05), and silt & clay sediment at Laemtan beach was significantly different from that at Bangsaen and Wonnapha beach in January (P<0.05). The overall results suggested seasonal variations in sediment grain-sizes in this area. Keywords : sediment grain sizes, Bangsaen beachReferences
Briggs, D. (1977). Sources and method of geography:sediment. Butterworth, London.
Buranapratheprat, A. (2008). Circulation in the Upper Gulf of Thailand: A review. Burapha Sci. J., 13(1), 75-83.
(in Thai)
Duxbury, A.C. & Duxbury, A.B. (1997). An introduction to the world’s oceans. Wm. C. Brown, Dubugue.
Garrison, T. (1993). Oceanography: an introduction to marine science. Wadsworth, California.
Ingmanson, D.E. & Wallace, W.J. (1995). Oceanography: an introduction. Wadsworth, California.
Luadnakrob, P. (2006). Annual variations of sediments and beach profiles in Bangsaen Beach. Special problem,
Department of Aquatic Science, Faculty of Science, Burapha University. (in Thai)
Nybakken, W.J. (1982). Marine Biology: an ecological approach. Harper & Row, New York.
Pitty, A.F. (1971). Introduction to geomorphology. Methuen, London.
Plummer, C.C., McGeary, D. & Carlson, D.H. (2001). Physical geology. Mc Graw-Hill, Boston.
Poate, T., Masselink, G., Davidson, M., McCall, R., Russell, P. & Turner, I. (2013). High frequency in-situ field
measurements of morphological response on a fine gravel beach during energetic wave conditions. Marine Geology, 2013(342), 1-13.
Thurman, H.V. (1994). Introductory oceanography. Macmillan, New York.
Wang, X. & Ke, X. (1997). Grain-size characteristics of the extant tidal flat sediments along Jiangsu coast, China.
Sedimentary Geology, (12), 105-122.
Williams, S., Jeffress, D.K. & Gohn, K.K. (1990). Coasts in crisis. U.S. Geol. Surv.
Buranapratheprat, A. (2008). Circulation in the Upper Gulf of Thailand: A review. Burapha Sci. J., 13(1), 75-83.
(in Thai)
Duxbury, A.C. & Duxbury, A.B. (1997). An introduction to the world’s oceans. Wm. C. Brown, Dubugue.
Garrison, T. (1993). Oceanography: an introduction to marine science. Wadsworth, California.
Ingmanson, D.E. & Wallace, W.J. (1995). Oceanography: an introduction. Wadsworth, California.
Luadnakrob, P. (2006). Annual variations of sediments and beach profiles in Bangsaen Beach. Special problem,
Department of Aquatic Science, Faculty of Science, Burapha University. (in Thai)
Nybakken, W.J. (1982). Marine Biology: an ecological approach. Harper & Row, New York.
Pitty, A.F. (1971). Introduction to geomorphology. Methuen, London.
Plummer, C.C., McGeary, D. & Carlson, D.H. (2001). Physical geology. Mc Graw-Hill, Boston.
Poate, T., Masselink, G., Davidson, M., McCall, R., Russell, P. & Turner, I. (2013). High frequency in-situ field
measurements of morphological response on a fine gravel beach during energetic wave conditions. Marine Geology, 2013(342), 1-13.
Thurman, H.V. (1994). Introductory oceanography. Macmillan, New York.
Wang, X. & Ke, X. (1997). Grain-size characteristics of the extant tidal flat sediments along Jiangsu coast, China.
Sedimentary Geology, (12), 105-122.
Williams, S., Jeffress, D.K. & Gohn, K.K. (1990). Coasts in crisis. U.S. Geol. Surv.
Downloads
Published
2017-06-16
Issue
Section
Research Article
