PPT-Mantle Radiogenic Isotope Geochemistry

Chapter 6 Isotope Geochemistry In isotope geochemistry our primary interest is not in dating but using the timedependent nature of isotope ratios to make inferences about the nature of reservoirs in the Earth and their evolution. Bradley M. Sherrill. FRIB. Michigan State University. Facility for Rare Isotope Beams, FRIB Broad Overview. Driver . linac. capable of E/A .  . 200 . MeV. for all ions, . P. beam. .  . 400 . Matt Jackson . and . Bill . McDonot. Sr-Nd. isotope plot. Global OIB (ocean island basalts, hotspots) and MORB (mid-ocean ridge basalt). We will model . Sr-Nd. isotopic evolution by crust-mantle differentiation.. Kimberlite pipe Udachnaya is a well known source of unique fresh mantle xenoliths. Deformed . peridotites. are compose lowermost layer of lithospheric mantle and experienced most significant metasomatism among the . Physical Chemistry of CO2 (Reid . Grigg. ). Aqueous Carbonate Chemistry. Mineral Dissolution and Precipitation. P-T phase diagram for H2O. AC is the boiling point curve.. AB defines the freezing point.. Miles Osmaston. , Woking, UK.. Why do we need a new and versatile MOR model - THREE reasons . MOR structures change a lot with spreading rate (mm/yr). :-. Fast. (EPR 70-150) - straight axes, orthogonal segmentation, smooth flanks. geotherms. *. Don L. Anderson. Because of…. Anharmonicity. , anisotropy, . anelasticity. 2. . Non-linear conductivity (insulation). 3. . Thick boundary layer (seismology). 4. . Secular . cooling (Lord Kelvin). Lecture 31 . Mass Dependent Fractionation. . If . a 4‰ fractionation of . δ. 18. O . is observed in a particular sample, what value of . δ. 17. O . do we predict? . We might guess it would ½ as much. . Lecture 32 . The Antarctic Ice Record. Much subsequent . paleoclimate. effort has focused on . δD. in ice cores from Antarctica and Greenland.. The . Vostok. core from Antarctica went back 400 . ka. Lecture 30 . Beginnings. Stable isotope geochemistry is concerned with variations in the isotopic compositions of elements arising . small . differences in the chemical behavior of different isotopes of an . COMMON plumeswere initially thought to consist of primitive mantle (e.g., Schilling, 1973). As we found, mixing be-tween primitive and depleted mantle can explain the Sr and Nd isotopic compositions in Cyprus Precipitation. Isotope Seasonality in Cyprus Precipitation. Published Paper. LMWL. Stable Isotope Orographic Lines. Applications: Calculation of groundwater recharge elevations . Conclusions. Kielman. -Schmitt, Ellen . Kooijman. , Anders . Scherstén. , . Jaana. . Halla. , . Wouter. Bleeker, J. Elis Hoffmann, Om Prakash Pandey, . Arathy. Ravindran, Alessandro Maltese, Klaus . Mezger. Secular change in the age of TTG sources during the Archean from in-situ Sr and Hf isotope analysis by LA-MC-ICPMS . Lecture . 29. Isochrons. This equation has the form . y = a + bx. .. Plotting the radiogenic isotope ratio against the parent daughter ratio, the intercept with be . R. 0. . and the slope will be . e. Biology. Shane . Lamos. Vermont Genetics Network Annual Retreat. August 7, 2013. 1. Systems Biology -. 2. Seeks to discover the link between molecules and physiology . Top Down – “. omics. ”, phenomenon based.