The formation of Kakamigahara plateau judging from an old river duct

Abstract

Kakamigahara plateau is located in the central southwest of the Japanese Islands. It is close to the Pacific Ocean and is located in the northern edge of Nobi Plain. There are plural dales on Kakamigahara plateau and the outskirts. These topography is ducts of the water which an old river produced. It is considered that it was formed by the Atsuta transgression (Shimosueyoshi transgression) approximately 130,000 years ago and later regression. By the main subject, we copy a dale from the map of modern era as possible exactly and consider the plateau formation and the relations with the old river duct while inspecting various opinions conventionally. In addition to?, with the example of the municipal road construction site of the plateau blood relation part, We inspect it about the bench formation by the old duct and a residual duct.