鈴鹿山脈南部筆捨礫岩層の多相変形礫
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概要
- 論文の詳細を見る
The Fudeste conglomerate of the Miocene Suzuka Group distributed in the southern part of the Suzuka Mountain Range, central Japan, has been extremely deformed along the Suzuka-Sakasita Fault, were the polyphase deformation is suggested from the fact that different types of deformations are found even in the pebbles with the same lithofacies at the same outcrope. The main results of the study are as follows: 1. A mode of arrangement of deformation zones, which are denned by assemblages of deformation types of pebbles, shows that the deformation grade represented by mean ductility becomes higher with approaching the Suzuka-Sakasita Fault. 2. Analysis of deformation type of pebbles by Rf/φ method clearly showes that, the pebbles of ductile behavior was characterized by large final strain and low fluctuation in orientation angle. 3. Polyphase deformation of pebbles might be due to the inhomogeneity of deviatoric stress and/or strain rate in matrix. 4. An analysis of the fracture pattern and the principal strain of the deformed pebbles show that the deformation of this conglomerate can be explained by the left-lateral movement of the Suzuka-Sakasita Fault.
- 地学団体研究会の論文
- 1989-07-25