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Sasajima & Maenaka 1966

Sasajima, S. and Maenaka, K. (1966). Intensity studies of the archaeo-secular variation in west Japan, with special reference to the hypothesis of the dipole axis rotation. Memoirs of the College of Science, University of Kyoto 33(2): 53-67.

Archaeo-secular variation of the geomagnetic total force in Kyoto during the past 4000 years has been revealed in the natural remanent magnetization of the various archaeologic finds of known ages with the aid of the Thelliers' method. The results show that the total force at about 2000 B.C. and 1000 B.C. was about 1.4 and 0.9 times as large as that at present, and at about 0 A.D. it reached a maximum value, being 1.5 times as large as that at present, and since then it showed the comparatively monotonous decrease, accompanying a little fluctuation, to that of the present. On the other hand, summarizing the five series of intensity data so far available, the secular variation of the reduced equatorial forces for the past 2000 years is discussed with special reference to 'the hypothesis of the dipole axis rotation' proposed by Kawai, Hirooka and one of the present writers (1965).

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Keywords
00 years; Asia; Cenozoic; dipole axis rotation; Earth; Far East;, Holocene; Honshu; intensity; Japan; Kyoto Japan; last 4; magnetic, field; paleomagnetism; Quaternary; secular variations, 18, Solid-earth geophysics

Journal
Memoirs of the College of Science, University of Kyoto