Resumen de Mineralizacion clástica, biogénica, química y evaporítica de rocas y minerales industriales del Cenozoico, en el borde pacífico de Sudamérica
Important Cenozoic clastic, biogenic, chemical and evaporitic industrial minerals and rocks mineralization in the Pacific Border Area of South America occur in the Intermountain Basins and in the Fore-arc Basins. The Intermountain Basins contain evaporitic and chemical deposits, the former known as salars, with lithium and potassium chlorides, and borates, and the latter, nitrates and iodine salts. Origin and preservation of these deposits is due to climatic, lithologic, structural and morphologic factors, existing in this area since Miocene times.
The Fore-arc Basins, located in the coastal area of South America, are filled with marine and continental sedimentary sequences, containing important quartz sands and ball clays clastic deposits; phosphorites, limestones and diatomites biogenic deposits, and gypsum, potassium and sodium salt evaporitic deposits. The origin of these deposits is related to oceanographic, climatic, structural and lithologic factors, developed in this coastal area during Cenozoic times.
