0 INTRODUCTION Gabbro,crystalized mantle basaltic melts,is a common rock type on the Earth’s surface that consists of mostly clinopyroxene and plagioclase.It is the dominant component of lower oceanic crust formed by...0 INTRODUCTION Gabbro,crystalized mantle basaltic melts,is a common rock type on the Earth’s surface that consists of mostly clinopyroxene and plagioclase.It is the dominant component of lower oceanic crust formed by slow cooling and crystallization of upwelling partial melts from the upper mantle in the mid-ocean ridge.Geophysical observations suggest that gabbroic intrusions are also common in the continental lower crusts that have experienced extensive underplating of mantle-derived melts(Thybo and Aetemieva,2013) or exist as crystallized partial melts from mantle plume (Xiao et al.,2004).Hence the deformation of gabbro is of importance for understanding the rheology of oceanic crust and underplated continental crust.展开更多
基金supported by the National Natural Science Foundation of China(No.42172250)the Yunnan Major Science and Technology Special Project(No.202002AF080003)the MOST special fund from the State Key Laboratory of GPMR,China University of Geosciences(Wuhan).
文摘0 INTRODUCTION Gabbro,crystalized mantle basaltic melts,is a common rock type on the Earth’s surface that consists of mostly clinopyroxene and plagioclase.It is the dominant component of lower oceanic crust formed by slow cooling and crystallization of upwelling partial melts from the upper mantle in the mid-ocean ridge.Geophysical observations suggest that gabbroic intrusions are also common in the continental lower crusts that have experienced extensive underplating of mantle-derived melts(Thybo and Aetemieva,2013) or exist as crystallized partial melts from mantle plume (Xiao et al.,2004).Hence the deformation of gabbro is of importance for understanding the rheology of oceanic crust and underplated continental crust.
