Vol.XIX, No.4 (1981-02 issued)
Petrographic Study on So-Called "Madaraishi" from Machiya Town : A Contribution to the "Koshidai-Takaboyama-Daioh'in Structural Belt", Abukuma Plateau, Japan | |
Shimaoka, Hiroshi | 395-413 |
Nickeliferous Pyrrhotite Deposits and Ores from the Oshirabetsu Mine, Tokachi Province, Hokkaido | |
Bamba, Takeo | 415-438 |
On the Occurrence of Koninckopora (Calcareous Alga) from the Viséan of Shikoku, Japan | |
Nakai, Hitoshi;Kato, Makoto | 439-450 |
The Revision of the So-Called "Cercidiphyllum" Leaves from the Paleogene of North Japan | |
Tanai, Toshimasa | 451-484 |
Petrography and Mineralogy of Xenoliths from the Yatsugatake Volcanic Chain, Central Japan I. Ti-Garnet | |
Oba, Takanobu;Kawachi, Shimpei | 485-494 |
Clinopyroxenes and Spinels in the System CaMgSi2O6-CaAl2SiO6-CaCrAlSiO6 : A Preliminary Report | |
Onuma, Kosuke;Tohara, Tatsuhide | 495-503 |
Fission Track Ages of Pyroclastic Flows in the Pliocene Ashoro Formation and the Plio-Pleistocene Ikeda Formation Developed in Eastern Hokkaido, Japan | |
Koshimizu, Satoshi | 505-518 |
An Automatic Astatic Magnetometer for Paleomagnetic Studies | |
Fujiwara, Yoshiki;Yoshida, Mitsuo | 519-526 |
The 1741-1742 Activity of Oshima-Ōshima Volcano, North Japan | |
Katsui, Yoshio;Yamamoto, Masatsugu | 527-536 |