Water Content and Deformation Fabrics in Layered Gabbros:Implications for Rhythmic Layering and Its Effect on Seismic Properties  

作　　者：Zhonghang Wang Hao Ye Junfeng Zhang Yanguo Fang 

机构地区：[1]Three Gorges Geotechnical Consultants Co.,Ltd.,Wuhan 430074,China [2]Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,China [3]State Key Laboratory of Geological Processes and Mineral Resources,School of Earth Sciences,China University of Geosciences,Wuhan 430074,China

出　　处：《Journal of Earth Science》2023年第6期1717-1723,共7页地球科学学刊（英文版）

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).

摘　　要：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.

关 键 词：MANTLE CRUST CONTINENTAL 

分 类 号：P315[天文地球—地震学]