We would like to invite your contributions to another of the rare geochronological sessions at the upcoming Goldschmidt, to be held 24-29 June 2012 in Montreal, Canada.
Many of our respective tectonics investigations are focused on rates and processes, and thus depend on determining the geological significance of radioisotopic ages. Recent advances in understanding the controls on isotopic retentivity are playing an increasingly critical role in tectonics studies, in which deformation, metamorphism and fluid-flow are all-important processes.
17h. Mineral seeks meaningful date
(Theme 17, Frontiers in Analytical Techniques)
Dawn Kellett (Geological Survey of Canada) - Dawn.Kellett NRCan-RNCan.gc.ca
David Schneider (University of Ottawa) - David.Schneider uottawa.ca
Alfredo Camacho (University of Manitoba) - camacho cc.umanitoba.ca
Geochronology is of fundamental importance to our understanding of the timing and rates of evolution of the continental crust. We have at our disposal a wide variety of radioisotopic systems that can be used as geochronometers, a wide range of minerals that contain measureable amounts of such elements, and rapidly advancing analytical techniques with which to measure them. Nevertheless, the geological significance of an isotopically-determined age incorporates assumptions that require a detailed understanding of the controls on isotopic retentivity in mineral systems. We invite contributions that test these assumptions, and that present recent advances in understanding the competing influences of temperature, pressure, microstructure, fluids, recrystallization and chemical composition on the distribution and evolution of radioisotopic systematics in minerals commonly used for geochronology studies. We also encourage contributions that apply these advances to investigations of tectonic processes.
Abstracts are due by 1 February, 2012. To submit an abstract, follow the link below:
All the best and we look forward to seeing you in Montreal,
Dawn, Dave and Alfredo