Geological Considerations on the Cretaceous Metallogenetic Provinces of Kieslager in the Outer Geosynclinal Zones of Honshu

Abstract

As is well known, a great number of Kieslager are distributed in the Sambagawa metamorphic zone. However, it should be noted that some are situated in the Shimanto zone as well as in the marginal zone of the Kitakami-mountain land both of which are thought to be late Mesozoic (mainly, Cretaceous) metallogenetic provinces of the Outer Zone of Honshu.
In this paper, the geologic and tectonic features of these provinces are reviewed and additional remarks are made on some genetic problems.