Peter Nabelek, University of Missouri-Columbia
 
RADIOGENIC ISOTOPE GEOCHEMISTRY - 8170
 
Element behavior in some geologic processes element substitutions in minerals, silicate melts and fluids trace element partitioning laws trace element fractionation during partial melting, crystallization, and precipitation trace element behavior during fluid/rock interaction Radiogenic Isotope Fundamentals radioactive decay mechanism stability of atoms Fundamentals of dating using Rb-Sr as an example Measuring isotope ratios Multiple isotope ratio diagrams and mixing Rb-Sr system Earth evolution igneous rocks sedimentary rocks Sr isotopes in the oceans through time water/rock interactions K-Ar method of dating dating of minerals and rocks loss of Ar and excess Ar concept of “blocking temperatures” cooling of metamorphic terranes 40Ar/39Ar method of dating dating of minerals and rocks loss of Ar and excess Ar concept of “blocking temperatures” cooling of metamorphic terranes Sm-Nd system Sm-Nd dating Nd isotope evolution and the concept of model ages crustal growth Nd isotopes in granites Nd isotopes in sea-water through time Lu-Hf system dating petrogenesis of igneous rocks Re-Os system dating evolution of the mantle and the crust ore deposits sedimentary rocks and sea-water U-Pb and Th-Pb methods of dating concepts of concordia and discordia mineral dates whole-rock dates total U-Th-Pb dating Pb isotope geology evolution of the Earth initial ratios in igneous rocks ore deposits carbonates U-series disequilibria marine sedimentation groundwater volcanism Fission Tracks Cosmogenic isotopes C-14 dating of organic materials Marine sedimentation Calc-alkaline volcanism Noble Gas isotopes Back to Home Page