About ARRIBAS A JR
About Geological Survey of Japan, Tsukuba, JPN
About HEDENQUIST J W
About Geological Survey of Japan, Tsukuba, JPN
About ITAYA T
About Okayama Univ. Sci., Okayama, JPN
About OKADA T
About Okayama Univ. Sci., Okayama, JPN
About CONCEPCION R A
About Lepanto Consolidated Mining Co., Manila, PHL
About GARCIA J S JR
About Lepanto Consolidated Mining Co., Manila, PHL
About Geology
About porphyry copper deposit
About Philippines
About Metallic ore deposit
About Dating
About フィリピン
About 斑岩
About 熱水
About Cu
About Au
About 鉱床