华北三重构造层的沉积演变和岩石化学特征  

THE SEDIMENTARY EVOLUTION AND PETROCHEMICAL CHARACTERISTICS OF THREE TECTONIC LAYERS IN NORTH CHINA

作　　者：黎彤[1] 梅孜文 

机构地区：[1]北京科技大学地质系,北京100083

出　　处：《大地构造与成矿学》1990年第4期275-282,共8页Geotectonica et Metallogenia

摘　　要：华北地区的构造层可划分为地槽构造层,地台构造层和地洼构造层。本文研究了这三个构造层在沉积环境,岩石类型、沉积速率和岩石化学模式等方面的差异。并指出自中元古代以来的各系地层的沉积速率和岩石化学成分的演化规律或特征。The tectonic layers in North China terrane can be divided into geosynclinal, platform and diwa (geodepression) tectonic layers, This paper deala with the differences of the sedimentary environments, the rock types, the sedimentation rates and the petrochemical models of these tectonic layers. It also points out the evolutional regularities or characteristics of the sedimentation rates and petrochemical compositions of the stratigraphic systems from middle Proterozoic to Cenozoic era.

关 键 词：构造层 沉积 演变 岩石化学 华北 

分 类 号：P547[天文地球—构造地质学]