島弧の深部構造

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タイトル別名
  • Deep Structure beneath Island Arcs
  • トウコ ノ シンブ コウゾウ

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抄録

Three-dimensional velocity structure beneath island arcs, especially beneath Japan arc, has been investigated in detail by many studies in the last dacade. The low-velocity zone beneath active volcanoes and the high-velocity slab have been delineated by using the block inversion technique. The location of the upper boundary of the descending slab has been estimated precisely by the use of some kinds of converted or reflected waves; the boundary has been located just above the deep seismic zone. In some regions, an oblique thin low-velocity layer has been found on the descending high-velocity slab.

収録刊行物

  • 地震　第２輯

    地震　第２輯 44 (Supplement), 145-158, 1991

    公益社団法人 日本地震学会

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