Chapter 2 Primary Sedimentary Structures Main types of bedding Determination of younger direction of beds from primary structures Types of stratigraphic break Angular unconformity Soft sedimentary structures

Chapter One Introduction Goals Outline Two supports Types of structures QA uantitative techniques pplication Suggestion

Review Primary sedimentary structures Faults (thrust system, extensional fault system, strike-slip fault system) · Joints(tension joints, conjugate joints,en echelon joints) Folding (bending, buckling, flexural slip, flexural flow, passive folding, kinking)

Review of Faults and Fractures (Read the summary of faulting in the copy papers after class)

GPS Survey: Tibet, Tarim Basin, Tian Shan Station velocity w r t. Siberia

TECTONIC MODELING Significance of tectonic modeling History of tectonic modeling Methods of tectonic modeling General procedure of tectonic modeling

TECTONICS OF CHINA (TIAN SHAN LABORATORY)

hangingwall ramp A- Ramps and flats hangingwall B-Hangingwall ramp and footwall footwall ramp footwall ramp B C-? thrust sequence New thrusts develop in the footwall

大家已有了岩石的概念:岩浆、沉积岩、变质岩,它们是不同的地质作 用下形成的,岩浆岩中的侵入岩应地下形成,地表看不见。但现在大量突出 地表,甚至形成高山,如五台山等由侵入岩或其变质岩组成;沉积岩,原始 应水平沉积,地表大量倾斜、弯曲、断开。这些说明地壳上岩石发生运动, 发生机械运动

一、课程的目的和任务 “构造地质学”是地质类各专业的一门专业基础课之一而构造地质学是地质科学的一 个分支,主要研究组成地壳的岩石(岩层和岩体)在地应力的作用下变形形成的各种构造现 象