Terraces in the Southern Coastal Area of Ise Bay, Central Japan (Preliminary Note)

概要

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Several terrace levels may be observed in the coastal area from Matsusaka to Ise in the south-central part of Mie Prefecture. These are primarily made up of deposits of fluvial gravel less than 30 meters thick with lenticular layers of sand and silt, and may be grouped into three terrace surfaces, i. e., the lower surface, the middle surface and the upper surface. The flat surfaces of the lower terraces are in a much better state of preservation than those of the upper terraces, and to date marine formations have not been discovered in any of the terrace deposits.In addition there is an erosion surface corresponding to the "Age" erosion surface which has developed in the Tsu area of the north-central part of Mie Prefecture. This surface covers the upper part of the hills with the exception of only their very tops. The distribution and stratigraphic subdivision of these surfaces are shown respectively in Fig. 1 and Table. 1. A few explanations regarding the texture of the deposits and some estimations regarding the geological structure were made in this paper; however, a more complete report shall be made in the future.
日本第四紀学会の論文