Geochemistry is the study of the distribution, concentration and cycling of the elements in Earth materials. The course explores the composition and origin of the solar system and Earth’s lithosphere, hydrosphere and atmosphere. It focuses on the tools utilized by geochemists, including major, trace and rare earth element analyses , stable and radiogenicisotopes, geochronology, and sampling methods and retrospective studies, and introduces new and emerging concerns in environmental geochemisty. The use, misuse and presentation of chemical analyses are explored in detail. Prerequisites: Geology 203, chemistry 103 and 104 or 105, or the permission of the instructor.