文档介绍：学位论文版权使用授权书
、使用学位论文的规定,有权保留并向国家有关部门或机构送交论文的复印件和磁盘,允许论文被查阅或借阅。本人授权金肥工业太
兰兰一可以将学位论文的全部或部分论文内容编入有关数据库进行检索,可以采用影印、缩印或扫描等复制手段保存、汇编学位论文。
(保密的学位论文在解密后适用本授权书)
学位险文糙签 :驯函∥
" 磊叼 签字醐:乃If年妒月矽日
签.
学位论文作者毕业后去向:
工作单位: 电话:
通讯地址: 邮编:
巢湖北部山区地质构造特征研究摘要
本文通过对巢湖北部山区野外实地考察研究、测量、搜集相关资料,对样品试验数据进行整理,运用相关工具软件对测量数据分析研究,以此来开展对巢湖北部山区地质构造特征的研究。利用计算机辅助绘制褶皱正交剖面,按照Ramsay等斜线分类
型,二叠系属于Ⅲ型顶厚褶皱。判断出本区褶皱属于纵弯机制,泥盆系五通组(D3W) 砂岩作为强干层控制着本区的褶皱基本形态。在二叠系(P)中存在多个软弱面,在岩层发生弯曲时,易发生差异性顺层剪切,而形成弯滑褶皱。通过对全区褶皱构造的研究,提出本区褶皱总体属于不协调褶皱。利用法国巴黎南方大学研制的计算机程序反演了研究区内古应力场特征及演化过程,通过对断层面上擦痕的观察、测量,利用计算机来计算主应力轴状态,分析动力学机制。对研究区内的节理产状进行测量,做出走向节理玫瑰花图分析研究区动力学。在综合前人对该区动力学背景研究的成果基础上,探讨了巢北山区的构造演化过程及各阶段特征,将所得到的结论与前人成果相比较对应。
关键词:巢湖北部山区;正交剖面;纵弯机制;主应力轴;构造演化
2
type and Permian System belongs to III top thick also makes decisions that the generation mechanism of folds of the researched area attributes the longitudinal mechanism to ,sandstone in Wutong Formation, Devonian System(D3w)as the Inventing layer controls the basic forms of local weak surface existed in Permian System(P)iS easy to take place otherness bedding shear to form the flexural-slip fold while rock stratum occurring to the study on folding tectonics in the whole area,the viewpoint that the general appearance of the local folds belong the disharmonie fold iS thrown ,the feature of the old-aged stress field and evolutionary process in the research area iS inverted by puter program developed by Southern University in Paris, utilizes puter to calculate the state of principal axes of stresses and analyses dynamical mechanics by means of observing and surveying striation fault research also measures j oints and occurrence of researched area and makes the rose diagram of strike j oint to analyze the dynamics of the researched on achievements about the dynamic background studied by predecessors,this paper discusses the process of the structural evolution an