地质年代——指地质体形成或者地质事件发生的时代。 分为: 1.相对年代——根据生物的演化顺序和岩石的新老关系,确定地质体形成或地质事件发生的先后顺序。 2.绝对年代——依据同位素年龄测定地质体形成或地质事件发生时距今多少年

地质年代:指地质体形成或地质事件发生的时代。分为: 1、相对年代:地质体形成或地质事件发生的先后顺序。 2、绝对年代:地质体形成或地质事件发生时距今多少年(由同位素年龄确定)

(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)

Strain Displacement Strain Strain field Strain determination in rocks

TECTONICS OF CHINA (TIAN SHAN LABORATORY)

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

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

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

Determination of the top sur faces of the beds from the scour surfaces

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