Discovery of scleractinian corals from the limestone conglomerate in the Kuzumaki-Kamaishi Belt, Northern Kitakami Massif, Northeast Japan and its significance

Abstract

Scleractinian corals were discovered from the limestone conglomerate distributed along the Shimochizawa River, west of Fukushi in the Kuzumaki-Kamaishi Belt (Jurassic accretionary complexes), Northeast Japan. These corals give the first evidence for Mesozoic limestone body present in the belt. The limestone conglomerates are lenticular in distribution pattern and interbedded in the thick bedded chert slab. They can be traced from the Shimochizawa River, trending NNW, to the north of Kita-Kawame over a distance of about 6 km.