ALUVIUM DAN ENDAPAN PANTAI- Kerikil,pasir lumpur yang terbentuk didalam lingkungan sungai,delta dan pantai. Endapan pasir disepanjang pantai Utara dan Selatan pulau Sumbawa,setempat setempat mengandung pasir magnetit.
DEPOSITS of ALLUVIUM and Gravel beaches, sand mud that formed in the environment of rivers, deltas and beaches. Sand deposits along the northern and southern coast of Sumbawa Island, local contains local magnetite sand.
DEPOSITS AND BEACH-alluvium gravel, sand silt builds up in the environment of the river, the delta and the coast. Deposition of sand along the coast north and south of the island of Sumbawa, local local sand containing magnetite.