Quaternary shore lines of the Sunda land Southeast Asia

Abstract

All frequently occurring positive shore lines and a few of the submerged strand lines of the Sunda Land, i.e. comprising the Sunda Shelf, Malayan Peninsula, eastern rim of Sumatra, South and West Kalimantan (Borneo), can be correlated with the classical examples of Quaternary shore lines of the Mediterranean and elsewhere. The submarine shore lines of the Sunda Land are at depths of -82-90 m, -67 m, -60 m, -50-51 m, -45 m, -36 m, -30-33 m, - 28 m, -18-22m, -13 m, -10 m, and -7 m. Elevated beaches above the present sea level are at +10-12 m, +16-18 m, +30-33 m, and +50 m. Variable sea levels of the past 6,000 years left traces at a few meters below till about 6 meter above the present sea stand. Warping appears to be indicated along the western margin of the Sunda Land where on one side submergence amounting to 30 m and on the other side emergence of 30 m have occurred since the last glaciation.