著者

安田 喜憲

出版者

地理科学学会

雑誌

地理科学 (ISSN:02864886)

巻号頁・発行日

vol.42, no.2, pp.113-119, 1987

被引用文献数

1

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A comparative study of the Japanese pollen records to the oxgen and carbon-isotope/pollen records from the Arabian Sea, Bengal Bay and Andaman Sea suggests the following summer monsoon fluctuations since the last glacial age in Japan. Ca. 120,000-70,000 years B.P.; Monsoon is active. 70, OO0-50, OOO years B.P.; Monsoon is not active. 50,000-33,000 years B.P.; Monsoon is rather active. 33,000-12,000 years B.P.; Monsoon is not active. But from 28,000 to 25,000 years B.P. is slightly active. 12,000-10,000 years B.P.; Monsoon is to move active. after 10,000 years B.P.; Monsoon is active.