1. Place all books and notes on the foor 2. Read each question carefully, then read it again 3. Think before you write

掌握极射赤平投影的基本操作方法，在吴氏网上准确地读出构造 要素的有关数据；

1. Draw a 2 dimensional Mohr Circle representation for the following stress conditions

1. Calculate the force at the base of a continental block that has a uniform thickness of 25km, length of1000km, width of500km, and density of2.70. What is the stress on the bottom of the block?

September 8, 2000 1. Describe the difference between slip and separation on a fault. 2. What type of offset() can be interpreted from the map below? Give a detailed description of your logic on the back of the page

1. Interpret the geologic history of the Grand Canyon using the diagram below. List the events in order from the oldest (at the bottom of the page) to the youngest(at the top of the page). For each event describe the principle or observation you used

一、褶皱几何要素在赤平投影图上的特征和求解方法

就几何形态而论,任何构造都可看成是面状构造或线状构造 面状构造和线状构造都可以分成为“透入性”和“非透入性 ”两类。 透入性构造均匀地弥漫于地质体中的构造,反映地质体作 为一个整体,也均匀地发生了变形

一、解释下列术语: 1.双重构造;2.有效应力;3.铲状断层;4.花状构造;5.石香肠构造与窗棂构造

一、名词解释(20分,每小题2分) 1.递进变形;2.枢纽;3.张节理;4.地垒与地堑;5.水平断