试论穿越层圈构造——三论板块俯冲与地幔热柱的相互制约  

On the Structure of Crossing Layer Circle——The Relationship between Plate Structure and Mantle Column Structure

作　　者：真允庆 牛树银 孙爱群 陈超 宋涛[3,4] 刁谦 孙璐 张福祥 ZHEN Yun-qing;NIU Shu-yin;SUN Ai-qun;CHEN Chao;SONG Tao;DIAO Qian;SUN Lu;ZHANG Fu-xiang(Third Bureau of China General Administration of Metallurgical Geology,Taiyuan 30002,China;Hebei GEO University,Shijiazhua ng 050031,Chi nd;Team 814,Jidn gsu Provincial Bur eau of Non-fe rrous Metals East China Geological Prospecting,Zhenjiang 212005,China;Jiangsu Bureau of Non-ferrous Metals East China Geological Exploration,Nanjing 210093,China)

机构地区：[1]中国冶金地质总局三局,山西太原30002 [2]河北地质大学,河北石家庄050031 [3]江苏省有色金属华东地质勘查局814队,江苏镇江212005 [4]江苏省有色金属华东地质勘查局,江苏南京210093

出　　处：《河北地质大学学报》2020年第5期1-12,共12页Journal of Hebei Geo University

基　　金：危机矿山项目(20109901);河北省自然基金面上项目(D2019403015);河北省研究生示范课项目(KCJSX2018089)。

摘　　要：自提出板块超深俯冲和超地幔柱的新全球新构造模型,与传统板块构造提出的地幔对流观念大相径庭。这一研究地球动力学的新思路,体现了地球内部物质的重新分异、调整、运移与能量的交换,对全球深部过程和大陆构造的成山、成盆、成岩、成矿、成藏和成灾等极其复杂的地质现象,将起到迎刃而解的作用。研究俯冲带和地幔柱的活动轨迹,不仅是提供了穿越层圈的物质和能量交换的通道,也是驱动了对地球宜居性至关重要的水循环和碳循环,是研究地球深部物质组成和动力学演化的重要窗口,对当今新时代实施地质"攻深找盲"的深部找矿方针和区域预测远景成矿提供坚实的理论基础。亦是华北克拉通中、新生代岩石圈减薄与破坏的主要控制因素。诚然,核幔边界(即D″层)既是高速深俯冲异常板片的"墓地",又是低速异常体(超地幔柱)的发源地,这一新论点揭示了板块下的地幔运动是研究岩石圈板块运动之根本。研究板块下的构造必将从岩石圈动力学拓展到地幔动力学,无疑对发展板块构造理论、区域成矿学、流变学、大陆构造学和高温高压试验等新型地球科学将赋予新的内涵。The new global neotectonic model of plate ultra-deep subduction and super-mantle column is quite different from the mantle convection concept proposed by traditional plate tectonics.This new idea of studying the dynamics of the earth reflects the re-differentiation,adjustment,migration and energy exchange of the earth’s internal matter,and will play an easy role in solving the extremely complex geological phenomena such as mountain formation,basin formation,diagenesis,mineralization,reservoir formation and disaster formation in the global deep processes and continental tectonics.The study of subduction zones and mantle plumes not only provides a channel for the exchange of material and energy through the rings,but also drives the water cycle that is vital to the habitability of the Earth The carbon cycle is an important window to study the material composition and dynamics evolution in the deep part of the earth.It provides a solid theoretical basis for the prospecting of the deep ore-finding needle and region in the new era.It is also the main controlling factor for the thinning and destruction of the lithosphere of the Cenozoic in the North China Craton.It is true that the nuclear mantle boundary(i.e.,the D-layer)is both a"graveyard"for the high-speed deep-sloping abnormal plate and a birthplace for the low-velocity anomaly(supermantle column),a new argument that reveals that the mantle motion under the plate is fundamental to the study of lithospheric plate motion.The study of subplate tectonics will necessarily extend from lithosphere dynamics to mantle dynamics.No doubt,the development of plate tectonics theory,regional mineralization,rheology,continental tectonics and high-temperature and high-pressure experiments and other new geosciences will give new connotations.

关 键 词：层圈构造 地球动力学 俯冲板块 地幔热柱 大陆构造 华北克拉通 

分 类 号：P588.125[天文地球—岩石学]