In the west-coast of Ise Bay, the graveliferous formations in early and/or midddle Pleistocene time, the so-called Highest gravels, are classified into three types, valley-filling, veneers of gravels (fans and fluvial terraces) and talus deposits. The Kentôyama, Ôtaniike and Tôzenji formations represent those types of deposit, respectively, and they overlie unconformably the Agé group of Plio-Pleistocene and are flanked with lower terraces.
Stratigraphic relations among these beds are indeterminable, but, considering with the geomorphological character of the beds and the relation to the Agé low-relief erosional surface, the Kentôyama formation may be somewhat older than the others.
A designation of the Highest gravels is unsuitable when the formations are recognizable as poly-cyclic ones geomrphologically, so the name should be changed to the Kentôyama formation and its equivalents or the highest terrace deposits in strict sense.
