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The SZ4D MultiArray: An On-Shore/Offshore Network for Integrated Observations of Subduction Zone Geohazards
AGU 2024
seismology | 13 december 2024
Diana C. Roman, Emily E. Brodsky, Mark D. Behn, Ma...
Solid-Earth geohazards, including earthquakes, volcanic eruptions, landslides, debris flows and floods, have cost over 1 trillion dollars and a half a...
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Determining the role of calcite twinning at the onset of ductile deformation through low temperature rock deformation experiments on Carrara marble
AGU 2024
mineral and rock physics | 11 december 2024
Stewart A. Williams, Melodie E. French, Claire Rub...
Calcite is an abundant mineral in the upper crust, and commonly appears as vein fill within fault zones. The crystallographic structure of calcite rea...
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What Influences Calcite Twin Nucleation? Constraints From Deformation Experiments on Carrara Marble
AGU 2024
mineral and rock physics | 11 december 2024
Claire Rubin, Stewart A. Williams, Melodie E. Fren...
Calcite deforms by intracrystalline twin nucleation and propagation in response to shear stress at low temperatures and pressures. Different deformati...
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Frictional Properties of Pelagic Sediments from the Northern Hikurangi Margin: Possible Implication for Fault Slip and Slip Cycles
AGU 2024
mineral and rock physics | 11 december 2024
Edgar Villegas, Yucheng Yang, Melodie E. French, J...
The Northern Hikurangi margin hosts multiple modes of fault slip at shallow depths (~6 km), including tsunamigenic earthquakes and slow-slip events (S...
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Slip-dependent evolution of permeability and frictional strength of carbonate input sediments from the Hikurangi Margin
AGU 2024
mineral and rock physics | 11 december 2024
Yucheng Yang, Edgar Villegas, Melodie E. French
The Hikurangi Margin in New Zealand has produced both major tsunamigenic earthquakes and periodic slow slip events (SSEs) at shallow depths (≤6 km). T...
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Time-dependent Permeability of Proppant-filled Fractures in Sierra White Granite
AGU 2024
mineral and rock physics | 11 december 2024
Cordelia Maya Guise, Amy Ryan, Melodie E. French
Enhanced Geothermal Systems (EGS) produce clean, renewable energy by flowing water through fractures in otherwise low-permeability rock. Fractures are...
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Effects of Dilatant Hardening on Fault Stabilization and Structural Development
GEOPHYSICAL RESEARCH LETTERS
15 may 2024
Stewart A. Williams, Melodie E. French
Dilatant hardening is one proposed mechanism that causes slow earthquakes along faults. Previous experiments and models show that dilatant hardenin...
Path and Slip Dependent Behavior of Shallow Subduction Shear Zones During Fluid Overpressure
JOURNAL OF GEOPHYSICAL RESEARCH: SOLID EARTH
13 april 2024
Benjamin Belzer, Melodie E. French
Elevated pore fluid pressure is proposed to contribute to slow earthquakes along shallow subduction plate boundaries. However, the processes that c...