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?
地球内部过程 Tsunamis海啸 and Coastal Flooding Coastal areas, especially around the Pacific Ocean basin where so many large earthquakes occur, may also be vulnerable易于to tsunamis
第一节 风化作用类型 5.1 Weathering Types 第二节 主要岩石的风化特点及岩石地貌特征 5.2 Weathering and Rock Landforms Features of Main Rocks 第三节 风化产物 5.3 Weathering Products 第四节 岩石及其风化产物与农业资源 5.4 Relation between Rocks and Weathering Products with Agriculture Resources
第一节 崩塌 6.1 Collapse 6.1.1 Types of collapse 6.1.2 Forming conditions of collapse 6.1.3 Accumulation and landforms of collapse 第二节 滑坡 6.2 Landslide 6.2.1 The shape of a landslide 6.2.2 Influence factors to a landslide 6.2.3 Types of a landslide 6.2.4 The development of a landslide 6.2.5 Prevention of a landslide