Review Show the homework and note book on your desk Practise measurement of attitude of planes and lines in the models

TERMINOLOGY FOR DISPLACEMENT a is the rake angle

Determination of the relative movement of the two walls from the tension joints

Main Bedding Types Bedding Shape level bedding ripple bedding Main Types of plate laminae

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

1.褶皱等倾斜线图的编制 1.1褶皱等倾斜线图的编制

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)

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

Where is stress,ε strain and the Young's modulus or elastic modulus

Review: 1.What is the orientation relationship between maximum shear stresses and principal stresses? 2. What are trajectories of principal stresses?