T237 Tick Tock in the Rock: Elucidating the Time Scales of Geologic Processes and Honoring the Contributions of Bruce Watson, 2018 Roebling Medalist

Wednesday, 7 November 2018
8:00 AM - 12:00 PM
Room 240-241

DIFFUSION IN ACCESSORY MINERALS AND CONSTRAINTS ON TIMESCALES OF GEOLOGIC PROCESSES

Paper number: T237-7
Program: Technical Sessions
Time: 9:25 AM – 9:45 AM

Authors

Abstract

Much progress has been made in the past few decades in measuring diffusion in accessory minerals. These determinations provide important constraints on thermal histories, the timing of geological events and processes, conditions for alteration of isotope ratios and trace-element signatures, and the formation and preservation of zoning. This presentation will provide an overview of diffusion rates in accessory minerals, with implications of these findings addressed in terms of their influence on the interpretation of thermal histories and geochemical signatures, and consideration of the roles of various factors, such as radiation damage and crystal-chemical properties, in affecting diffusivities.

Geological Society of America Abstracts with Programs. Vol. 50, No. 6

doi: 10.1130/abs/2018AM-318476

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