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Abstract
At convergent margins where oceanic crust is subducted beneath continental or island-arc crust, sediment on the igneous oceanic crust divides into an accreted and a subducted fraction. Although the subducted fraction is larger, it is obscured in many seismic reflection records because of its depth and the effects of the overlying complex structure. Volumes of accreted and underthrust sediment were quantified at individual margins and global estimates were made of the terrigeneous debris subducted. Also included were debris from subduction erosion. The estimated volume of terrigeneous material subducted beneath continental and island-arc crust is sufficiently large to significantly affect processes along the plate boundary. The possible volume reaching the mantle could have considerable affect on mantle evolution. ?? 1993.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The return of sialic material to the mantle indicated by terrigeneous material subducted at convergent margins |
| Series title | Tectonophysics |
| Volume | 219 |
| Issue | 1-3 |
| Year Published | 1993 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Tectonophysics |
| First page | 163 |
| Last page | 175 |
| Google Analytic Metrics | Metrics page |