Granular Dynamics in Shallow Earthquake Slip Zones: Insights from Microstructural Analysis of Clast-Cortex Aggregate Grains

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Crookbain, Kieran

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Abstract:

Understanding the dynamics of shallow earthquake rupture and coseismic slip in carbonate-dominated fault zones is exceptionally important in many areas worldwide. Although constraints are available from rock mechanics experiments and paleoseismological investigations of surface breaks, little is currently known about the dynamic processes that occur in narrow fault slipping zones in the near-surface (<3 km) environment.

The Tre Monti Fault, central Italy (exhumed from depths <2 km) is an active carbonate-dominated fault zone that has probably hosted large (Mw >6) earthquakes. In previous studies of the principal slip zone (PSZ) of the Tre Monti Fault, peculiar aggregate- type grains were recognised and termed

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154 pages A4

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2017Crookbain

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Open Access

Abstract PDF File

http://download.otagogeology.org.nz/temp/Abstracts/2017Crookbain.pdf

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Citation

Crookbain, Kieran, “Granular Dynamics in Shallow Earthquake Slip Zones: Insights from Microstructural Analysis of Clast-Cortex Aggregate Grains,” Otago Geology Theses, accessed September 26, 2017, http://theses.otagogeology.org.nz/items/show/648.