Developments of Geochronological Methods and their Application to Date Ore Forming Events – S07
Fernando Corfu (University of Oslo)
Bill Davis (Natural Resources Canada – Geological Survey of Canada)
Robert Creaser (University of Alberta)
Christopher Lawley (Natural Resources Canada – Geological Survey of Canada)
Geochronology is undergoing a steady progress due to technical improvements in instrumentation, analytical protocols and methodological refinements of the existing isotopic methods. Rapid, micro-analytical advances allow dating of complex mineral paragenesis at unprecedented resolution and provide part of the basis for linking mineral textures at the thin section scale to entire mineral systems. In the past decade the U-Pb system has been enriched by the addition of new generations of instruments and by refined techniques which have increased both the spatial resolution and time resolution. Argon remains of critical importance in evaluating the timing of alteration and mineralizing processes and Re-Os has consolidated its leading role in direct dating of sulfides as well as studying the development of petroleum systems. Other methods are undergoing a revival or offer great potential for the study of specific ore systems, for example Rb-Sr, U-Th-He, Lu-Hf. The session will showcase the advancements in these various fields highlighting the technical progresses, but focusing principally on novel applications to the ore genesis theme.
|Types of presentation: Talks (up to 8) and Posters|