俯冲隧道型折返模式特征与存在问题的探讨

造山带中的高压/超高压岩石(如榴辉岩)记录了物质向下俯冲到地幔深度发生高压/超高压变质作用而后折返到地表的一系列地球动力学过程。目前我们对矿物在俯冲和折返过程中的变质作用已经有了比较深入的了解,但是我们对俯冲带深部岩石的折返过程仍然存在一些疑问。文章对折返模式中的俯冲隧道型折返模式进行了简单的探讨,讨论了俯冲隧道型折返模式在地学研究中的作用,希望为俯冲隧道型折返模式的发展与完善做出贡献。

High pressure-ultrahigh pressure rocks(such as eclogites)in the orogenic belt record a series of geodynamic processes of the materials that experienced deep subduction and exhumation to the earth surface.At present,we have a deep understanding of the metamorphism of minerals in the process of subduction and exhumation,but we still have some doubts about the process of ex-humation of deep rocks in the subduction zone.This paper briefly explores the subduction channel exhumation model,and discusses the role of subduction channel exhumation model in geological research,in the hope ofmaking contributions to the development of subduction channel exhumation.