西安石油大学油气资源学院：《地震勘探原理 Seismic Survey Principle》课程教学资源（PPT课件讲稿）第五章 共反射点叠加法（共反射点时距曲线方程、多次反射波的特点、多次叠加的特性）

一、选择填空题(10 分) 1—C 2—B 3—B 4—C 5—C 6—B 7—B 8—A 9—D 10—C

一、选择填空题 1、B 2、C 3、B 4、C 5、C 6、A 7、C 8、C 9、B 10、C

一、选择填空题(每小题 1 分，共 10 分) 1、 矿体产于岩浆岩体的底部、与围岩渐变、矿石矿物为自形晶结构、围岩没有明显蚀变现象的矿床属于( )

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

Strain Displacement Strain Strain field Strain determination in rocks

一、了解地质剖面图的图饰要素 二、掌握地质剖面图的编制方法

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

(A)General triaxial stress ellipsoid in perspective view. (B)Views normal to each of the principal planes of the ellipsoid. (After W.D. Means,1976)

OBSERVATION OF TECTONIC SAMPLES Observe tectonic samples in the STRUCTURAL SCOPE. Discuss what you observed with your group members. Select one representative of the group to exchange ideas with other groups in the class