1. Distribution of Deformation in the Crust divide the crust into deformation regimes based on temperature and depth A. Upper Crust (0 - 50 km)

Tectonic Earthquakes Most earthquakes occur at plate margins due to tension, compression or shearing forces. Rocks at plate margins are in constant motion and are being pushed, pulled, bent, twisted and folded

There will be a brief review of chapters 7 ñ 11 at the end of this lecture. There will be no lecture on Tuesday, November 13, 2001 (Reading Days)

一、名词解释（20 分，每小题 2 分） 1. 递进变形：从初始状态至最终状态之间，岩石变形的全过程，用于理解和描述变形 过程（演化）。）

1. Compare and contrast a restraining bend and a duplex. Where are they found? How do they form?

October 23, 2000 Draw a diagrammatic cross section of the eastern side of ridge 3 in the box below

October 9, 2000 What is a flower structure? Draw an example of a flower structure in the box below

October 4, 2000 1. Remember that there is a lab exam today. a. Have you studied? b. Did you remember to bring all of your old labs and lab supplies?

Compare and contrast a classic Gulf Coast growth fault with a large-scale extensional fault(Western US). How are they similar? .. different?

1. Compare Stearns' Type 2 fracture pattern to the okljoints from the class notes. Draw a diagram and discuss the nature and occurrence of the fracture(s)