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)

1.褶皱等倾斜线图的编制 1.1褶皱等倾斜线图的编制

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

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

Course Examination paper of Resource Geology （Answers） Ⅰ. To Explanate the following terms ( Ten terms , 2 marks per term, total 20 marks) 1. Ore Minerals: the specific minerals within the ore which contain the metals to be recovered

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

Ⅰ. TO EXPLANATE THE FOLLOWING TERMS ( Ten terms , 2 marks per term, total 20 marks) 1. Ore Minerals; 2. Ferrous metal; 3. Precious metal; 4. Siderophilic elements; 5. Mineralization epoch; 6. Grade; 7. Hydrothermal solution; 8. Mineralization

Ⅰ. TO EXPLANATE THE FOLLOWING TERMS ( Ten terms , 2 marks per term, total 20 marks) 1. Ore; 2. Gangue Minerals; 3.Non-ferrous metal (Base metal); 4. Precious metal; 5. Sulfophilic elements; 6. Host Rock; 7. connate water; 8. Country Rocks; 9

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