Grain size and minerals in surface sediment in Binh Thuan coastal area

Abstract

     The Binh Thuan coastal area with a beautiful landscape of red sand dune and rocky mountains protruding to the sea, attracting many tourist and resort activities. Grain size and mineral composition of coastal sediments is the result of many years of geological formation in both continents and in the sea, which are important information of the geological environment to understand the dynamic process in this area. The surface sediments distribute in three types: coarse sand, medium sand and fine sand, in which the medium sand is most common. The minerals in the sediments are quartz, aragonite, feldspar, calcite, illite, chlorite. The origin of sediment has terrigenous, transition and marine. The terrigenous source with high quartz content and low calcite and aragonite, the transition source with aragonite and calcite content increasing and the quartz content lower, and the marine source with high content of calcite and aragonite and the lowest quartz.