安徽张八岭地区构造演化及动力学

对张八岭地区的构造特征、演化及其动力学有不同解释。通过1：5万张八岭幅、珠龙幅区域地质调查．从地层、岩石组合、岩石化学、岩浆岩、构造变形和变质等研究认为．该区从中新元古代起，经历了成谷、沉积．下沉、顺层剪切、深部熔融、塑性流动、层间褶皱．叠加折劈、宽缓褶曲、逆掩推覆，壳层滑动、熔融成浆、聚浆热隆、侵入或喷发．剥蚀夷平、堆积充填等铸成现今地貌景观．引起上述构造特征和演化的动力源自重力、热力和地球自转速率变化的惯性离心力等的结合与转化，它们在每个阶段各自所起的作用不同，就产生不同构造特征，推动区域构造演化．

THE TECTONIC EVOLUTION AND DYNAMICS OF ZHANGBALING REGION IN ANHUI PROVINCE

Geologists have given different explanations to the tectonics, evolution and dynamid in Zhangbaling. Through regional geological survey of Zhangbaling and Zhulong at a scale of1: 50000 and based on the studies of strata,petrochemistry, rock association, magmatic rock,tectonic deformation and metamorphism, author suggested that since middle upper Proterozoicthe Zhangbaling region has undergone valley-forming, sedimentation, downgoing, beddingshear, deep melt, plastic flow, interstratified fold, superdriposed bend-cleavage, wide-flatfold, overthrust nappe, shell glide, melt, hot uplift, intrusion, eruption denuding flat, accumulation filling and finally formed the present geomorphyologic landscape. The dynamics,which caused the above teetonic features and evolution, was derived from combination and inversion of gravity thermodynamics and invertial centrifugal force from vartation of Earth fe rotation rate. Those, which played different parts in each period, resulted in various tectonicfeatures driving regional evolution.