摘要
大洋俯冲带是地球浅表与深部物质和能量交换最活跃的场所之一.对俯冲板片界面的精细结构探测是认识和了解板片组分结构、俯冲过程、俯冲带地震形成机制、深部水循环、碳循环和地幔熔融等地球内部物质能量交换过程的关键.简要介绍俯冲板片界面成像研究的意义,梳理近20年来的重要进展和存在的争议.在此基础上,从多学科和不同俯冲带综合对比等角度探讨未来可能的突破方向.厘清典型俯冲带俯冲板片界面从地表到深部的垂向变化以及不同俯冲带的横向变化,对理解俯冲板片界面形成机制及俯冲带物质能量交换过程具有重要意义.
Abstract
Subduction zones are the most dynamic regions on Earth for the exchange of materials and energy between the shallow and deep layers of the planet.Investigating the structure of the slab interfaces is crucial for understanding the composition and structure of the slab,the subduction process,subduction zone earthquakes,deep water and carbon cycling,mantle melting,and other mechanisms involved in the exchange of materials and energy within the Earth's interior.The paper briefly introduces the significance of slab interfaces imaging studies,highlighting key achievements and ongoing debates that have emerged over the past two decades.On this basis,the potential directions for future breakthroughs from the perspectives of multidisciplinary observations and research,as well as comprehensive comparative studies of different subduction zones are discussed.By constraining the vertical variations of slab interfaces from the Earth's surface to the deep interior and examining their lateral variations in different subduction zones,the formation mechanisms of slab interfaces and the material-energy exchange processes in subduction zones can be better understood.
基金项目
国家重点研发计划青年科学家项目(2022YFF0802600)
NETL
NSTL
万方数据