Geochemie der Kruste |
This lecture deals with processes for growth and evolution of the continental crust. Here we look at continental crust formation during the Archean and along modern subduction zones (island arcs and continental arcs). Geochemical and isotopic tracers are discussed. Lecture notes (pdf-files): lecture 01 The Earth's crust, Oldest crust, Archean crust, Crustal growth through time lecture 02 Petrogenetic models for Archean TTG's, Modern crust, Upper continental crust lecture 03 Subduction zone magmatism, Volcanic hazards; Pysiography of subduction zones lecture 04 Thermal structure of subduction zones; Generation of arc magmas, Major rock series; Geochemical composition of arc magmas; Pb-isotopes, Ce/Pb ratios and case studies lecture 05 10-Be, Boron isotopes, chemical fluxes in subduction zones, U-Th-disequilibrium, arc magmatic tempos lecture 06 Andes Mts. case study, Granites and continentals crust; Himalayan leucogranites, A-type granites |