| Title | Author | PDF |
| Some Considerations on the Metamorphosed, Paleozoic Pelitic Rocks of the Kitakami Mountains |
Chieko ONO and Masato KATADA (301-308) |
21-05_01.pdf(976KB) |
| Exploration for Helium Resources in the Taga Region of Joban Coal Field |
Shin'ichi MAKI, Koji MOTOJIMA, Minoru SASAKI, Takashi HIRUKAWA, Shozo NAGATA and Kunio KAGEYAMA (309-325) |
21-05_02.pdf(6,101KB) |
| On the Minor Elements in Ryukyu Limestone from Kikai-jima Island, Kagoshima Prefecture, Japan |
Tadashi FUJINUKI (327-340) |
21-05_03.pdf(2,811KB) |
| Abstracts for Geological Survey Seminar (1970.3.17, 18) |
(341-344) |
21-05_04.pdf(5,071KB) |
