Geology, Distribution of Hot Springs and Hydrothermal Alteration Zones of Major Geothermal Areas in Japan

摘要

Compilation works on geology, distribution of hot springs and hydrothermal alteration zones were carried out for the assessment of geothermal resources in Japan. Following maps and related tables of twenty-eight major geothermal areas were prepared by the compilation works. The document contains simplified geologic map and cross section with gravity data, distribution map of hot and mineral springs, distribution map of hydrothermal alteration haloes, zonal distribution map of alteration zones, correlation table between geologic map and compilation data, catalogue for hot and mineral springs, and catalogue for hydrothermal alteration haloes.