Journal of Geography (Chigaku Zasshi)
Online ISSN : 1884-0884
Print ISSN : 0022-135X
ISSN-L : 0022-135X
Volume 59 , Issue 3
Showing 1-14 articles out of 14 articles from the selected issue
  • Masasi Miyadi
    1950 Volume 59 Issue 3 Pages 61-63
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    The modern research is being developed just by the kinematical method, although it could hardly be done by the statical one. The author showed some examples recently developed in the field of geodesy, making use of the time signals, and explained the time service in Japan, especially the Standard Frequency and Time Signals, suggesting the application to the geographical research.
    The chapters are as follows : i) Observation of the solareclipse applied to the geodetic measurement beyond the ocean, ii) Observation of the occultation for geodetic application, iii) Detection of the movement of the earth-crust, iv) Utilization of the precise time for the geophysical research, v) The regular radio time signals in Japan, vi) The Standard Frequency and Time Signals.
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  • Teiichi Kobayashi
    1950 Volume 59 Issue 3 Pages 63-80
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    Mesozoic palaeogeography and palaeocliniatology of Eastern Asia are discussed here with reference to crustal deformations and the development of floras and faunas.
    2) Insofar as the forest composition is concerned, the change of flora is in Eastern Asia found greater within the Mesophyticum than between the Palaeoand Meso-phyticum and this change undoubtedly means the climatic change, if one consider the depauperation of coal measures, vertical distribution of aluminous shales and other aspects in the Permo-Triassic formations.
    2) The geoanticlinal upheaval of the Akiyoshi orogenic zone must he the cause of this climatic change, because the zone of upheaval is known to have teen extending from Japan to Tonkin through. Hainan and the terrain where the climate has changed, was embraced by this axis of elevation.
    3). In the oscillation zone of strand line after the Akiyoshi paroxysm the luxuriant forest which was the Rhaeto-Liassic type of flora, was introduced as early as Carnic or even in the Ladino-Carnic transition.
    4) A trend of research greatly advanced in recent years was in the Mesozoic non-marine faunas on the continent, as the salient facts thus obtained being summarized in this paper. As the result of this research the five distinct faunas called Daido, Jehol, Naktong, Shiragi and Sungari are distinguished in the Koreoa-Manchurian land and their ages determined at Upper Triassic to Liassic, Middle and Upper Jurassic, Lower Cretaceous, Middle Cretaceous and Upper Cretaceous respectively. The palaeogeographic changes through these five epochs are now well deciphered.
    5) In conclusion it can be mentioned that the Akiyoshi And Sakawa cycles of orogeny are of prime importance in the tectonic development not only in the festoon islands of Japan but also on the continent of Eastern Asia, and in the history of biota, and climatic change also they bear a great importance.
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  • Kwanzi Suda
    1950 Volume 59 Issue 3 Pages 80-88
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    In Northeastern Japan, the production of agriculture, especially the crops of rice are much reduced frequently by the abnormal cool summers in the district, and many peoples living there are suffered very much from the shortage of the supply of foods. Since about 40 years up to the present, the investigations on the cause of the cool summers have been made by many meteorologists, oceanographers and agriculturists, and several hypothetical theories have been appeared such as “Theory of the prevailing of cold current Oyasiwo”, “Theory of the best formation of sea ice in northern sea”, “Theory of the prevailing of the general circulation of atmosphere and ocean”, “Theory of the large eruption of volcanoes”, “Theory related to the sunspot numbers” and “Theory of the path of typhoon in mid summer. In this report the author has explained of these theories briefly and proposed several methods for the researches on the causes of cool summers and the forecasting of them in the district.
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  • Shirobee Kiuchi
    1950 Volume 59 Issue 3 Pages 88-92
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    The author studied on the distribution of the depth and temperature of isothermal stratum in Japan and Manchuria, He observed that the depth and temperature of isothermal stratum are generally the function of latitude, and then its depth is shallower and its temperature is lower in high latitude than in low latitude. Its depth is 10-16 m in Japan and is 10-14 m in Manchuria. Its temperature is 8-18°C in Japan and is 2-11°C in Manchuria.
    The reason of this phenomenon is thought to be due to the freezing at the surface stratum of the earth in winter. But there are several regions, where the temperatures are disturbed by the covering plant, the nature of soil and the moisture content.
    The temperature of isothermal. stratum is very important in the geophysical point of view. It will give a key to the study in fault, earth current and geomagnetism. Moreover it will have a significance in the agrar-climate, which the author will complete as “Studies on thermal change in a soil column upper isothermal stratum” on the following treatise.
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  • [in Japanese]
    1950 Volume 59 Issue 3 Pages 92-94
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1950 Volume 59 Issue 3 Pages 94-97
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
  • [in Japanese]
    1950 Volume 59 Issue 3 Pages 97-100
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1950 Volume 59 Issue 3 Pages 100a-101
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1950 Volume 59 Issue 3 Pages 100
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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  • [in Japanese], [in Japanese], [in Japanese], [in Japanese], [in Japane ...
    1950 Volume 59 Issue 3 Pages 101a-103
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1950 Volume 59 Issue 3 Pages 101
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    Download PDF (316K)
  • 1950 Volume 59 Issue 3 Pages 103a-104
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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  • [in Japanese]
    1950 Volume 59 Issue 3 Pages 103
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
    Download PDF (291K)
  • [in Japanese]
    1950 Volume 59 Issue 3 Pages 104-107
    Published: June 30, 1950
    Released: November 12, 2009
    JOURNALS FREE ACCESS
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