Search Results - "Smith, Steven A. F"

An evolutionary model and classification scheme for nephrite jade based on veining, fabric development, and the role of dissolution–precipitation by Tarling, Matthew S., Smith, Steven A. F., Negrini, Marianne, Kuo, Li-Wei, Wu, Wei-Hsin, Cooper, Alan F.

“…Although nephrite jade has been collected and treasured since the Stone Age, we lack a clear understanding of how it forms during deformation and metasomatism…”
Get full text

Rough faults, distributed weakening, and off-fault deformation by Griffith, W. Ashley, Nielsen, Stefan, Di Toro, Giulio, Smith, Steven A. F.

“…We report systematic spatial variations in fault rocks along nonplanar strike‐slip faults cross‐cutting the Lake Edison Granodiorite, Sierra Nevada, California…”
Get full text

Principal Slip Zones in Limestone: Microstructural Characterization and Implications for the Seismic Cycle (Tre Monti Fault, Central Apennines, Italy) by Smith, Steven A. F., Billi, Andrea, Toro, Giulio Di, Spiess, Richard

“…Earthquakes in central Italy, and in other areas worldwide, often nucleate within and rupture through carbonates in the upper crust. During individual…”
Get full text

Lightning-induced high temperature and pressure microstructures in surface and subsurface fulgurites by Kuo, Li-Wei, Smith, Steven A. F., Chen, Chien-Chih, Ku, Ching-Shun, Chiang, Ching-Yu, Brown, Dennis, Negrini, Marianne, Huang, Wen-Jeng, Chen, Tze-Yuan

“…Cloud-to-ground lightning causes both high-temperature and high-pressure metamorphism of rocks, forming rock fulgurite. We demonstrate that a range of…”
Get full text

The internal structure and composition of a plate-boundary-scale serpentinite shear zone: the Livingstone Fault, New Zealand by Tarling, Matthew S, Smith, Steven A. F, Scott, James M, Rooney, Jeremy S, Viti, Cecilia, Gordon, Keith C

“…Deciphering the internal structure and composition of large serpentinite-dominated shear zones will lead to an improved understanding of the rheology of the…”
Get full text

Fluid overpressure from chemical reactions in serpentinite within the source region of deep episodic tremor by Tarling, Matthew S., Smith, Steven A. F., Scott, James M.

“…Slow fault slip includes a range of transient phenomena that occur over timescales longer than those of standard earthquakes. Slow slip events are often…”
Get full text

Evidence of transient increases of fluid pressure in SAFOD phase III cores by Mittempergher, Silvia, Di Toro, Giulio, Gratier, Jean Pierre, Hadizadeh, Jafar, Smith, Steven A. F., Spiess, Richard

“…The San Andreas Fault Observatory at Depth (SAFOD) in Parkfield, central California, has been drilled through a fault segment that is actively deforming…”
Get full text

Dynamic earthquake rupture preserved in a creeping serpentinite shear zone by Tarling, Matthew S., Smith, Steven A. F., Viti, Cecilia, Scott, James M.

“…Laboratory experiments on serpentinite suggest that extreme dynamic weakening at earthquake slip rates is accompanied by amorphisation, dehydration and…”
Get full text

Crystallographic orientation mapping of lizardite serpentinite by Raman spectroscopy by Tarling, Matthew S., Demurtas, Matteo, Smith, Steven A. F., Rooney, Jeremy S., Negrini, Marianne, Viti, Cecilia, Petriglieri, Jasmine R., Gordon, Keith C.

“…The serpentine mineral lizardite displays strong Raman anisotropy in the OH-stretching region, resulting in significant wavenumber shifts (up to ca. 14.5 cm−1)…”
Get full text

Fault Roughness at Seismogenic Depths from LIDAR and Photogrammetric Analysis by Bistacchi, Andrea, Griffith, W. Ashley, Smith, Steven A. F., Di Toro, Giulio, Jones, Richard, Nielsen, Stefan

“…Fault surface roughness is a principal factor influencing earthquake mechanics, and particularly rupture initiation, propagation, and arrest. However, little…”
Get full text

Influence of Effective Stress and Pore Fluid Pressure on Fault Strength and Slip Localization in Carbonate Slip Zones by Rempe, Marieke, Di Toro, Giulio, Mitchell, Thomas M., Smith, Steven A. F., Hirose, Takehiro, Renner, Joerg

“…The presence of pressurized fluids influences the mechanical behavior of faults. To test the roles of normal stress and fluid pressure on shear strength and…”
Get full text

The Relationship Between Microfracture Damage and the Physical Properties of Fault‐Related Rocks: The Gole Larghe Fault Zone, Italian Southern Alps by Rempe, Marieke, Mitchell, Thomas M., Renner, Jörg, Smith, Steven A. F., Bistacchi, Andrea, Di Toro, Giulio

“…Although geological, seismological, and geophysical evidence indicates that fracture damage and physical properties of fault‐related rocks are intimately…”
Get full text

Grain Size Sensitive Creep During Simulated Seismic Slip in Nanogranular Fault Gouges: Constraints From Transmission Kikuchi Diffraction (TKD) by Demurtas, Matteo, Smith, Steven A. F., Prior, David J., Brenker, Frank E., Di Toro, Giulio

“…Nanograins (≪1 μm) are common in the principal slip zones of natural and experimental faults, but their formation and influence on fault mechanical behavior…”
Get full text

Controls on fault zone structure and brittle fracturing in the foliated hanging wall of the Alpine Fault by Williams, Jack N, Toy, Virginia G, Massiot, Cécile, McNamara, David D, Smith, Steven A. F, Mills, Steven

“…Three datasets are used to quantify fracture density, orientation, and fill in the foliated hanging wall of the Alpine Fault: (1) X-ray computed tomography…”
Get full text

Structural Controls on Shallow Cenozoic Fluid Flow in the Otago Schist, New Zealand by Stirling, Claudine H., Reid, Malcolm R., Waight, Tod E., le Roux, Petrus J., Smith, Steven A. F., Scott, James M., Frank, Madison, Holbek, Simon C., Van Hale, Robert

“…The Otago Schist in the South Island of New Zealand represents an exhumed Mesozoic accretionary prism. Two coastal areas (Akatore Creek and Bruce Rocks) south…”
Get full text

Amphibole interlocking into jade by Tarling, Matthew S., Smith, Steven A. F.

“…Nephrite jade is a semi-precious gemstone composed of tiny crystals and needles of amphibole. Here, Matthew Tarling and Steven Smith describe how its origins…”
Get full text

Distinguishing the Raman spectrum of polygonal serpentine by Tarling, Matthew S., Rooney, Jeremy S., Viti, Cecilia, Smith, Steven A.F., Gordon, Keith C.

“…Positively identifying serpentine mineral types is important for a wide range of disciplines in the Earth sciences and health sciences. Although Raman…”
Get full text

Fault structure, frictional properties and mixed-mode fault slip behavior by Collettini, Cristiano, Niemeijer, André, Viti, Cecilia, Smith, Steven A.F., Marone, Chris

“…Recent high-resolution GPS and seismological data reveal that tectonic faults exhibit complex, multi-mode slip behavior including earthquakes, creep events,…”
Get full text

The structure of an exhumed intraplate seismogenic fault in crystalline basement by Smith, Steven A.F., Bistacchi, Andrea, Mitchell, Thomas M., Mittempergher, Silvia, Di Toro, Giulio

“…The 600m-thick Gole Larghe Fault Zone (GLFZ) is hosted in jointed crystalline basement and exposed across glacier-polished outcrops in the Italian Alps…”
Get full text

Catastrophic emplacement of giant landslides aided by thermal decomposition: Heart Mountain, Wyoming by Mitchell, Thomas M., Smith, Steven A.F., Anders, Mark H., Di Toro, Giulio, Nielsen, Stefan, Cavallo, Andrea, Beard, Andrew D.

“…•The Heart Mountain landslide is the largest known sub-aerial landslide on Earth.•Emplacement mechanism has been under dispute for 100 yr.•Experimental results…”
Get full text