北海道駒の湯マンガン土鉱床の地球化学

抄録

Komano-yu hot spring near Komaga-dake, Hokkaido, Japan is especially interesting, because manganese hydroxide is found in the process of deposition. The problem of whether the frequency and amount of some minor elements with which they are associated in the stratified deposits in Tertiary formations, deep sea nodules and recent bog ore from Komano-yu hot spring differ sufficiently in relation to different sources of the manganese, and separation of manganese from iron in the process of deposition of bog ore are discussed. Stable isotope ratios of hydrogen of water and manganese hydroxide mineral from Komano-yu hot spring were measured. The hot spring water probably form from local meteoric water of this area.