Original paper

Earthquake lubrication and healing explained by amorphous nanosilica

Volume: 10, Issue: 1
Published: Jan 18, 2019
Abstract
During earthquake propagation, geologic faults lose their strength, then strengthen as slip slows and stops. Many slip-weakening mechanisms are active in the upper-mid crust, but healing is not always well-explained. Here we show that the distinct structure and rate-dependent properties of amorphous nanopowder (not silica gel) formed by grinding of quartz can cause extreme strength loss at high slip rates. We propose a weakening and related...
Paper Details
Title
Earthquake lubrication and healing explained by amorphous nanosilica
Published Date
Jan 18, 2019
Volume
10
Issue
1
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