31 Reading the Record of Tectonic Processes through Diverse Investigations of Igneous and Metamorphic Rocks

Friday, 5 May 2023
1:30 PM - 5:30 PM
EC 410

THE METAMORPHIC ROCK RECORD THROUGH EARTH'S HISTORY

Paper number: 31-7
Program: Theme Sessions
Time: 3:25 PM – 3:45 PM

Authors

Abstract

Regionally metamorphosed rocks provide a direct record of past tectonic activity. Pressures, temperatures, and timescales of metamorphism in the rock record vary as functions of age. With the caveat of imperfection in the rock record, these differences challenge the assumption that Earth’s tectonic processes have always operated as they do today. In this presentation, I summarize the changes in the metamorphic rock record and some of the secular changes in tectonics (or lack thereof) that they might record.

Geological Society of America Abstracts with Programs. Vol. 55, No. 3

doi: 10.1130/abs/2023NC-386434

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