Rutile geochemistry and applications for Earth SciencesExport this event to calendar

Thursday, September 29, 2011 — 2:00 PM EDT

Seminar presenter:

Dr. Thomas Zack
Institut für Geowissenschaften
Johannes-Gutenberg-Universität Germany
Rutile Geochemistry and Application.

Refreshments provided.

Abstract:

An ongoing interest of mine is investigating the potential of trace elements in minerals for a deeper understanding of large-scale geological processes, a field of research that can be coined `microgeochemistry`. My approach is best exemplified through my research on the mineral rutile. Rutile has a rather simple chemical formula, TiO2. Despite its simplicity, it accommodates a range of trace elements. In this talk I will highlight the most relevant characteristics of rutile to date: (1) I discovered that the incorporation of Zr is strongly temperature dependent in zircon-and quartz-bearing rocks, which is now routinely applied to metamorphic and sedimentary rocks. (2) Furthermore, U is often enriched in rutile to levels where U/Pb dating is viable by routine in situ techniques (e.g., LA-ICP-MS), with important consequences for the field of provenance studies. These results are the first steps in an endeavor to understand the geochemistry of only one mineral, with new discoveries around the corner (e.g., in the field of mineral deposits).

 

Location 
EIT - Centre for Environmental and Information Technology
room 3142
200 University Ave West

Waterloo, ON N2L 3G1
Canada

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