Abstract The formation of Cenozoic mountain belts in the Mediterranean realm was preceded by tens of millions of years of subduction, forming volcanic arcs, and frontal contractional systems. In addition, subduction usually involves slab rollback and formation of oceanic backarcs. Although such structure must have influenced the orogeny of Mediterranean mountain belts, no active analog has been mapped with modern crustal-scale seismic methods. Here, we study the entire Calabrian subduction system to map the structure resulting from Tethys lithosphere subduction and slab rollback, in a process that must be akin to that operating during a phase of the formation of the Mediterranean orogenic belts. We present a crustal-scale cross section of the entire Calabrian subduction system obtained from on- and off-shore wide-angle seismic data. The 2D P-wave velocity section shows spatially abrupt (

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地中海弧的结构：来自卡拉布里亚弧俯冲系统的新见解

摘要 地中海地区新生代山带形成之前，经历了数千万年的俯冲作用，形成了火山弧和锋面收缩系统。此外，俯冲通常涉及板块回滚和大洋弧后的形成。尽管这种结构肯定影响了地中海山带的造山运动，但没有用现代地壳尺度地震方法绘制出活跃的类似物。在这里，我们研究了整个卡拉布里亚俯冲系统，以绘制由特提斯岩石圈俯冲和板块回滚产生的结构，其过程必须类似于地中海造山带形成阶段的运行过程。我们展示了从陆上和离岸广角地震数据中获得的整个卡拉布里亚俯冲系统的地壳尺度横截面。