大洋地幔地震波低速带(LVZ)起源于由水导致的微量初始熔体  

Geological confirmation for water-effected incipient melt origin of seismic low velocity zone(LVZ)beneath ocean basins

作　　者：牛耀龄 Yaoling Niu(Laoshan Laboratory,Qingdao 266237,China;China University of Geosciences,Beijing 100083,China;Institute of Oceanology,Qingdao 266071,China)

机构地区：[1]Laoshan Laboratory,Qingdao 266237,China [2]China University of Geosciences,Beijing 100083,China [3]Institute of Oceanology,Qingdao 266071,China

出　　处：《Science Bulletin》2023年第4期359-363,M0003,共6页科学通报（英文版）

基　　金：supported by the National Natural Science Foundation of China(91958215);the Ministry of Education Overseas Expertise Introduction Project for Discipline Innovation(111 Project,B18048)。

摘　　要：It is reasonable to state that if there were no seismic low velocity zone(LVZ)beneath ocean basins,there would be no seafloor spreading and plate tectonics.Over the past 50 years,plate tectonics has been developed into a powerful theory with unquestionable and irrefutable lines of evidence and predictive efficacies.Yet,markedly different views remain prevalent on the origin of the LVZ.These include the effect of incipient melt[1,2],weak asthenosphere dictated by hydrous olivine[3],solid-state rheology change in response to optimal pressure and temperature conditions in the upper mantle[4],and mantle temperature variation[5].

关 键 词：低速带 MANTLE 初始熔体 

分 类 号：P542.5[天文地球—构造地质学]