CAJ | 학술논문

浙江省地处古新板块先后相互作用的关键地区却缺乏对地球物理资料进行细致的构造体系研究，本文基于最新的重磁异常资料，对浙江地区进行了系统的构造解析。磁力异常揭示出浙江具有典型的北东分带、北西分块的棋盘网格状特征，反映地面地质的构造走向；重力异常展现出包容早期北东向的主体由西南向东北逐渐升高的北西向构造并在深部与北北东向构造复合，进而揭示浙江现今深部构造与浅部地壳脱耦，深部莫霍面及岩石密度变化的重力梯度带与航磁异常并不同源。联系浙江及华南的地质现象，浙江为重磁异常构造为兼备北西向调节构造并被发育于燕山-喜山期的北北东向构造所改造的主体北东向构造；产生定型于基底的东西向构造在后期构造中活化并延续至今。
절강성지처고신판괴선후상호작용적관건지구각결핍대지구물리자료진행세치적구조체계연구，본문기우최신적중자이상자료，대절강지구진행료계통적구조해석。자력이상게시출절강구유전형적북동분대、북서분괴적기반망격상특정，반영지면지질적구조주향；중력이상전현출포용조기북동향적주체유서남향동북축점승고적북서향구조병재심부여북북동향구조복합，진이게시절강현금심부구조여천부지각탈우，심부막곽면급암석밀도변화적중력제도대여항자이상병불동원。련계절강급화남적지질현상，절강위중자이상구조위겸비북서향조절구조병피발육우연산-희산기적북북동향구조소개조적주체북동향구조；산생정형우기저적동서향구조재후기구조중활화병연속지금。
While Zhejiang Province is a key region where is locat in the ancient and the new plates take mutual activities, lack of detailed study on structural system by geophysical data.This paper system analysis the structure of Zhejiang province according to gravity and magentic field characteristics. Magnetic field characteristics of the region conform to the main geological structure on the ground with a checkerboard grid features along NE belts and NW blocks;Gravity anormalies increased from southwest to northeast show the main NW-tredning structure which enwrape the NE-trending structure was superposed by NNE-trending structure in the deep.Then reveal the decoupling between deep and shallow in lithosphere of Zhejiang province what can be explained by that the source lead to gravity gradient zone and magnetic anomaly zone are nonhomologous. Relate to geological facts of Zhejiang province and southern China, gravity and magentic field characteristics disclosure that the NE-trending structure combined with NW- trending adjustive structure were developed simultaneously and interferenced by NNE-trending structure which generated in late-Yanshan and Himalayan; The EW-trending structure which were generated and positioned in the basement were reactivated by later tectonism and sustained activity until now.