Proton microprobe for chemical dating of monazite
Proton microprobe for chemical dating of monazite - blu pidio tailan
However, examining data reported elsewhere for A-type granites, the correlation between major element chemistry and presence of monazite is likely restricted to S-type lithologies.
Here you can find all Crossref-listed publications in which this article is cited.Monazite (LREEPO4) is a radiogenic, rare-earth bearing mineral commonly used for geochronology.Here we examine the control of major element chemistry in influencing the crystallization of monazite in granites (Salihli and Turgutlu bodies) and garnet-bearing metamorphic assemblages (Bozdag and Bayindir nappes) from the Menderes Massif, western Turkey. cookies, tags, and tracking settings to store information that help give you the very best browsing experience.To understand more about cookies, tags, and tracking, see our Privacy Statement *Prices in US$ apply to orders placed in the Americas only.This sample is currently used at UMass to test analytical precision.
Our two spot microprobe ages of 1413±11 Ma and 1447±11 Ma are consistent with UMass results between 1.41 and 1.45 Ga (the grain average is 1.41 GA).If you would like to receive automatic email messages as soon as this article is cited in other publications, simply activate the “Citation Alert” on the top of this page.Screen reader users, click here to load entire article This page uses Java Script to progressively load the article content as a user scrolls.Jercinovic (University of Massachusetts) Assumption: No non-radiogenic lead in monazite or at least very little If you can precisely measure U, Th, and Pb (in ppm), you can solve this equation iteratively for lead to obtain an age Map thin section with the microprobe Ce, Fe, Y to find all monazite crystals Map monazite grains Th, Y, U to see chemical domains Measure major elements for matrix corrections Spot analyses Measure: U, Th, Pb, Y (to correct for peak interference with Pb--a minor correction) Solve the age equation See an abstract of Williams et al., 1999 which describes the structural, metamorphic, and temporal setting for Proterozoic rocks in northern New Mexico and discusses the pervasive ~1.4 Ga metamorphic overprint of these rocks.JB54: Tusas Mountains, Cerro Colorado near Ojo Caliente, NM.Screen reader users, click the load entire article button to bypass dynamically loaded article content.