@article{oai:ir.kagoshima-u.ac.jp:00012922, author = {浦島, 幸世}, journal = {南方海域調査研究報告=Occasional Papers}, month = {2016-10-31}, note = {Most of the epithermal gold-silver ore deposits in the western zone of the Satsuma district were formed in the Pliocene age based on basis of measurements of K-Ar ages for adularia or alunite from these deposits. Those in the east zone were formed in the Pleistocene age. Both are paleo-geothermal systems. There are active geothermal systems around the recent volcanoes along the east rim of this district. The centers of the volcanic and hydrothermal activities seemed to have migrated from west to east east during several million years. Paleo-geothermal and active geothermal systems are distributed widely in the west and south rims of the Pacific.}, pages = {1--5}, title = {古地熱系と活地熱系(シンポジウム主旨説明)}, volume = {11}, year = {} }