宮城県栗原市荒砥沢ダム巨大地すべりの地質背景

IR HANDLE Web Site 5 Citations

Bibliographic Information

Other Title
  • ミヤギケン クリハラシ アラトザワ ダム キョダイ ジスベリ ノ チシツ ハイケイ
  • Geologic Background of the Huge Landslide at Aratozawa, Kurihara, Miyagi Prefecture

Search this article

Abstract

Geology around the Aratozawa huge landslide triggered by the Iwate-Miyagi Inland Earthquake was surveyed several days after the landslide. Lacustrine sedimentary rocks are overlain by a thick pumice tuff which exposes at the lower scarp. The thick pumice tuff is overlain by a welded tuff at the scarp. A review on previous studies on the area revealed inconsistency among interpretations for their sedimentation ages, ranging from Miocene to Quaternary. Similar past huge landslides, which are identified from topographies, around nearby volcanoes are attributed to the similarity of geology and geomorphology.

Journal

Citations (5)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top