ISSN ■ 340-74■ 4

OKAYAMA UNIVERSiTY

Earth ScierVol.4, No.1, 1997

CONTENTS

◆

Three― dilnensional structure of P wave velocity in the crust and upper lnantle

beneath southwest Japan

Takeshi TANAKA and Hitosh ODA .....・ ・ ・・・・ ・・・・・・ '

Landsllde occurrence and geology of the ttliassic

Nariwa Group,Southwest Japan

Shu HOTANI,Shigeyuki SUZUKI,Hajime TANAKA and■求uya YAMADA .

Ferroglaucophane schist frollll the Ohsa‐ yama area,

Okayama Prefecture,Japan

Trjshio NOZAKA.....・ ・・・ ・・・・・・・・・・・・・・・ ・・・・

Structural modincatiOn of KAlSiC)4 1ninerals

■lasuhiko OKAMOTO ......・ ・・・・・・・・・・・・・ ・・・・ ・

On the plasticity oF Si一 〇 framework of

alkali zinc silicates

Shizuo KOHARA and Akira KAヽ 生ヽHARA .....・ ・・・ ・・・・・・ ・

IIial calculations of relating the equilibriu■ ■states

of lninerals to the descriptive IIlineralogy

Akira KAヽ 独ヽHARA .....・ ・・・・・・・・ ・・ ・・・・ ・・・・・・

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21

33

41

73

Departlnent of Earth Sciences

Faculty of Science,OKAYAMA UNIVERSITY

Tsushima―Naka 3chome l-1,OKAYAMA 700-8530,JAPAN