【地质专业英语文选】地质.pdf
地质专业英语文选 成都地质学院外语教研室编
Contents 1.The Earth2.The Outer Part of theEarths Crust3.TheWork of RunningWater4.Weathering andSoils5.Minerals6mon Minerals7mon Minerals8.ThreeGreatClassesofRocks9.Igneous Rocks and Metamorphic Rocks10.
1.TheEarth TheEarth is a nearly sphericalplanet.It has acir- cumference of approximately 25000 miles(40000 km),a polar diameter of aboutmiles(12,714 km),and an equatorial diameter ofmiles(12,756km)The three main units of the Earths interior are core, mantle,andcrust. 
