A PRELIMINARY STUDY OF PATTERNED GROUND ON SOME MOUNTAINOUS REGIONS OF CENTRAL AND NORTHERN JAPAN

作者：Ikuo Suzuki, Masami Fukuda · 发表于：Geographical Review of Japan · 年份：1971 · DOI：10.4157/grj.44.729 · 被引用次数：1 · 研究领域：Geology and Paleoclimatology Research、Cryospheric studies and observations、Polar Research and Ecology

There is a stringency about the existance of periglacial activities in some districts of Japan from the last glacial stage to recent. Some amounts of studies on periglacial pheno-mena relative to both fossil and recent types have already been made, and a few attempts were carried out to outline the palaeoclimatic zones or palaeogeographical features of Japanese Islands during the Würm stage using some data indicating palaeoclimates by field observations about fossil patterned ground and other features distinguished as periglacial phenomena. While the concept that patterned ground indicates the palaeoclimate or palaeogeography has been accepted, there remained some confusions between terminology and genetical ideas about patterned ground in Japan. So, it was hoped that from the viewpoint of genetical ideas, re-checking of patterned grounds might provide profound data for palaeogeography, if the works would be carried out without confusions. In this preliminary study, the authors did on-the-spot investigations at such mountains as Mt. Kamikochi (2803m) and Mt. Chausu (2600m) in the Southern Alps and Mt. Kaun (1954m) of Taisetsu Volcano in Central Hokkaidô. After these field works, we analysed the observed data and materials, and discussed on genetical ideas and environment, under which these patterned grounds develop. Conclusions are summarized as follows: (1) According to Washburn's classification of patterned ground, the patterned ground we observed is classified as “sorted c...