Mesozoic-Cenozoic plutonic rock are present throught western sumatra,defining a series of subpararel,fault-controlled,northwest-southest trending belts. regionally they,broadly,correspond to the southerly extension of the western granite province of peninsular Thailand-Burma but some of the creataceous granites focussed along and west of the main su…
whithin the frmamework of the southern sumatra geological and mineral exploration project (SSGMEP), geologists from the sumatra section of the mapping division of the geological research and development centre