Jurassic and Cretaceous Radiolarians from the pre-Tertiary System in the Hidaka Belt, Maruseppu Region, Northeast Hokkaido
スポンサーリンク
概要
- 論文の詳細を見る
We have made a study of the pre-Tertiary Hidaka Supergroup (the Kanayama Formation), which is distributed at the most easterly portion of the Hidaka Belt, in order to ascertain the age of accumulation of this supergroup. The Kanayama Formation consists mainly of broken formations in which clastic rocks of terrigenous origin predominate and many exotic blocks are included in the scaly shale matrix. The tuffaceous shale of this format ion yielded Amphipyndax tylotus―Clathrocyclas diceros radiolarian assemblage which indicates late Campanian to early Maastrichtian age. And a late Jurassic Stylocapsa (?) spiralis and early Cretaceous Sethocapsa trachyostraca―Staurosphaera sepremporatus assemblages were obtained from chert block within the melange facies of the Kanayama Formation. This formation may represent a part of accretionary complex formed by subduction process during the late Cretaceous.
- 北海道大学 = Hokkaido Universityの論文
北海道大学 = Hokkaido University | 論文
- 有機金属気相成長法によるInGaAsの成長
- 熱併給発電プラントの性能評価
- 暖房用ストーブの燃焼性能に関する研究（第2報） : 温風，FFおよびポータブル型各種ストーブの燃焼実験
- 暖房用ストーブの燃焼性能に関する研究（第1報） : ポット式灯油ストーブの燃焼実験及び流動解析
- 都市地表面温度分布の測定