第四紀火山活動の地域性と島弧-海溝系の会合問題

概要

論文の詳細を見る
K_20 values at given Si_O2 levels with reference to the volcanoes on the junctional zone between any island arcs and elongation of trenchs, are always low compared with those of other volcanoes belonging to the same volcanic zone. On the other hand, K_20 values of the volcanics within the depressive zone are usually lower than those of the volcanics on the adjacent uplifted zones. These facts may suggest that the junction between two arc-trench systems is not due to bending of a system but due to intersection of two systems. These also may suggest that K_20 values relate to the state of stress in deep zone as well as the depth (=confining pressure) of magma source.
日本地質学会の論文
1984-11-30