The cessation of igneous activity and uplift when an actively spreading ridge is subducted beneath an island arc |
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| Authors: | Soichi Osozawa |
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| Affiliation: | Institute of Geology and Paleontology, Faculty of Science, Tohoku University, Sendai 980, Japan |
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| Abstract: | Abstract Ridge subduction and the resulting formation of a slab window interrupts volcanic arc-type igneous activity and causes uplift of the arc system. These implied diachronous relationships are examined by comparison of the temporal and spatial positions of ancient migrated trench-trench-ridge triple junctions and the distribution of subduction-related igneous and metamorphic rocks in Japan. |
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| Keywords: | arc magmatism diachronous metamorphism ridge subduction slab window triple junction uplift |
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