中国地质2013，Vol.40Issue(3)：671-680,10.
高喜马拉雅的三维挤出模式
Three-dimensional extrusion model of the Great Himalaya slice
摘要
Abstract
The Greater Himalayan Complex (GHC),as the metamorphic core of the Himalayan orogen,shows a "hot" collisional orogen characterized by high-grade (up to granulite facies) metamorphic rocks exhumed from the middle-lower crust,widespread migmatites from extensive anatectic processes and high-temperature ductile deformation.A three-dimensional tectonic model for extrusion of the GHC has been proposed based on the discovery of widespread orogen-parallel ductile extension.It is suggested that extrusion dynamic processes of the GHC are as follows:(1) partial melting in 45-36Ma resulting in the weak and hot middle crust,(2) orogenparallel gravitational collapse in 28-26Ma,(3) ductile thrusting since ＞ 26 Ma and (4) ductile extrusion resulting from the formation of MCT and STD during 23-17Ma.关键词
高喜马拉雅杂岩/3-D挤出模式/热碰撞造山Key words
Great Himalaya Complex/three-dimensional extrusion model/hot collisional orogen分类
天文与地球科学引用本文复制引用
许志琴,王勤,曾令森,梁凤华,李化启,戚学祥,蔡志慧,李忠海,曹汇..高喜马拉雅的三维挤出模式[J].中国地质,2013,40(3):671-680,10.基金项目
国家自然科学基金委创新群体项目(40921001)和中国地质调查局项目(1212010818094)资助. （40921001）
