地球科学概论（Introduction to earth science）.doc

地球科学概论（Introduction to earth science） Postgraduate entrance exam of 2006 1. Noun interpretation 1. Crust and lithosphere 2. V-shaped valley and u-shaped valley 3. Rock bed and rock wall 4. Rock and structure The flood and the stream Second, fill in the blanks 1. The most basic formation contact relationship is, and. 2. The Mesozoic era is divided into three periods, whose name and code are respectively. 3. According to the content of SiO2, the magma can be divided into four basic types, namely SiO2 65% and SiO2 at 52% to 65%, SiO2 at 45% to 52% and SiO2 45%. 4. In geological time, the single level of the geological age is the main, generation, period, period and period. 5. The ecosystem includes:,, and four components. 6. Factors affecting weathering are mainly:, and etc. Iii. Discussion 1. Analyze the relationship between surface (external power) ground and internal (internal dynamic) geological function. 2. Try to explain the geological meaning of three decades of river east and three decades. 3. Explain the dialectical relationship between mineral resources -- geological environment -- economic and social development. This paper discusses the four types of mechanical transportation. 5. Determine which methods (principles) in relative geological time. 6. Describe the basic contents of plate tectonics. The entrance exam for masters degree in 2007 1. Noun interpretation (40 points) 1. Edge beach and P98 Beach: migration of rivers in the process of bending, carried by debris in the convex bank and deposited Starting form the shallows, move with the lateral migration of rivers, shallow growing into a wide beach. Diara: two-way flow due to the flood circulation, surface flow from the central to flow on both sides, bottom flow from both sides to heart together, and then rise, due to the conflicting and gravity flow, the debris in the channel deposits. 2. Weathering effect and wind erosion action P74, P89 Weathering: under the surface or near the surface of the earth,