Jan 17, 2018 · Alluvial Soils. › Alluvial soil is formed by accumulated sediments transferred by the rivers and rapids, thus, it is amongst the most fertile soils. It is a fine-grained fertile soil deposited in river beds or by water flowing over floodplains. › Alluvial soils are formed mainly due to silt deposited by Indo-Gangetic-Brahmaputra rivers.Savanna Explorer - Know More. Savanna soil types Lateritic soils, cracking clays, red/yellow earths, lithosols, sands, alluvial, , or it forms `coffee rock , an extremely hard and un-erodable rock In Western Cape York it forms the basis of the bauxite deposits , Saline and alluvial In coastal areas south of Darwin, in Kakadu and on coastal areas of the Gulf of .alluvial sand, clay and hard rock plants south africa Mar 05, 2014 alluvial sand, clay and hard rock plants south africa Grinding Posted at: August 16, 2012. Alluvium prm, the free encyclopedia Alluvium deposits in the Gamtoos Valley in South Africa . A short guide to the soils of South Africa, their Sand‐ and Mud‐Dominated Alluvial‐Fan Deposits of the Miocene Seto Porcelain Clay Formation, Japan. K. Nakayama. E-mail address: ‐. Department of Geoscience, Shimane University, Matsue 690‐8504, Japan.