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Some Considerations on the Metamorphosed, Paleozoic Pelitic Rocks of the Kitakami Mountains (976KB)
Chieko ONO and Masato KATADA (301-308)

Exploration for Helium Resources in the Taga Region of Joban Coal Field (6,101KB)
Shin'ichi MAKI, Koji MOTOJIMA, Minoru SASAKI, Takashi HIRUKAWA, Shozo NAGATA and Kunio KAGEYAMA (309-325)

On the@Minor@Elements in Ryukyu Limestone from Kikai-jima Island, Kagoshima Prefecture, Japan (2,811KB)
Tadashi FUJINUKI (327-340)

Abstracts for Geological Survey Seminar (1970.3.17, 18)
(5,071KB)
(341-344)