地球与行星物理论评(中英文)2025,Vol.56Issue(6):641-664,24.DOI:10.19975/j.dqyxx.2025-005
联合天然源电磁探测与岩石物理实验约束深地挥发份分布的研究综述
A review of studies combining natural-source electromagnetic soundings and petrophysical experiments to constrain the volatile distribution in the deep earth
摘要
Abstract
Volatiles(such as H2O,CO2)are the crucial factors controlling the physical-chemical properties and dynamic processes of the multi-layer system within the Earth,and therein play an important role in plate tectonics,magmatic-mineral activities,and even the development of the planet's habitable environment.Because volatiles can drastically alter the physical characteristics of crust-mantle rocks,the primary method for determining their content and distribution within the Earth is to combine geophysical observations with high-temperature and high-pressure petrophysical experiments.Of the many physical properties,electrical conductivity is particularly sensitive to the presence and abundance of trace amounts of volatile materials,and therefore the deep conductivity structure de-rived from natural-source electromagnetic(EM)sounding methods such as magnetotellurics(MT)and geomagne-tic depth sounding(GDS)offers crucial observational information for constraining the distribution of volatiles in the crust and mantle.This review firstly summarizes the basic principles and characteristics of the major natural-source EM sounding methods,and presents in detail the high-temperature and high-pressure experimental studies on the electrical conductivity of major minerals/rocks and melts in the crust and mantle,then reviews typical cases combining the two methods to study the distribution of deep volatiles in different geological settings.Finally,this review synthesizes and discusses the existing shortcomings and difficulties of current research,and further pro-spects the future development directions and potential challenges.关键词
挥发份/大地电磁测深/地磁测深/岩石物理实验/电导率Key words
volatiles/magnetotellurics/geomagnetic depth sounding/petrophysical experiment/electrical con-ductivity分类
天文与地球科学引用本文复制引用
周虹利,李鑫,邓阳凡,朱晟..联合天然源电磁探测与岩石物理实验约束深地挥发份分布的研究综述[J].地球与行星物理论评(中英文),2025,56(6):641-664,24.基金项目
国家自然科学基金资助项目(92479204,U24A20602) (92479204,U24A20602)
国家重点研发计划项目(2022YFF0801003) (2022YFF0801003)
中国科学院战略性先导科技专项(XDA0430203)Supported by the National Natural Science Foundation of China(Grant Nos.92479204,U24A20602),National Key R&D Program of China(Grant No.2022YFF0801003),and Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDA0430203) (XDA0430203)