江西地壳物性分层分带与深部构造LAYER DIVIDING AND ZONE .PDFVIP

CNIC-01473 GIEC-0007 江西地壳物性分层分带与深部构造 LAYER DIVIDING AND ZONE DIVIDING OF PHYSICAL PROPERTY OF CRUST AND DEEP STRUCTURE IN JIANGXI PROVINCE (In Chinese) 中 国 核 情 报 中 心 China Nuclear Information Centre CNIC-01473 GIEC-0007 江西地壳物性分层分带与深部构造 黎春华 杨亚新 龚育龄 黄临平 （华东地质学院，江西临川，344000 ） 摘 要 在总结国内外已有经验的基础上，以数据处理方法为主要手段 研究江西境内的布格重力异常。首先根据异常特点建立三层地壳模 型——表层、区域性中间层和壳下物质层，定量计算各层的顶、底 面埋深，然后分析研究它们的埋深变化特点，从而勾划出研究区内 的深部地质构造；计算出各层的“密度”和“质量”，根据这两个 参量研究浅部的地质构造；计算了地表高程与布格重力异常相关分 析的相关因数 R ，划分出江西境内“稳定”与“不稳定”的地壳区 带，找出了江西省内成矿有利地段。 1 Layer Dividing and Zone Dividing of Physical Property of Crust and Deep Structure in Jiangxi Province (In Chinese) LI Chunhua YANG Yaxin GONG Yuling HUANG Linping (East China Geology Institute, Linchuan, Jiangxi, 344000) ABSTRACT On the base of summing experiences both at home and abroad, the Bugar gravitative anomallies are studied by major means of data processing. According to the anomalous character, three layer crust modles (surface layer, middle layer in region and material layer under crust) are built up, depth of upper and bottom surfaces for every layer is calculated quantitatively, their varied characters of depth are studied and deep geological tectonics are outlined. The “density” and “mass” of every layer are calculated, and according to these two parameters, the shallow geological tectonics are researched. The relation-factor R between the surface altitude and