Permeability and seismic velocity and their anisotropy across the Alpine Fault, New Zealand: An insight from laboratory measurements on core from the Deep Fault Drilling Project phase 1 (DFDP‐1)
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Geophysical Research"
DOI: 10.1002/2017jb014355
Abstract: The Alpine Fault, a transpressional plate boundary between the Australian and Pacific plates, is known to rupture quasi-periodically with large magnitude earthquakes (Mw ~8). The hydraulic and elastic properties of fault zones are thought to… read more here.
Keywords: fault; deep fault; velocity; permeability ... See more keywords
Acoustic evidence for a broad, hydraulically active damage zone surrounding the Alpine Fault, New Zealand
Sign Up to like & getrecommendations! Published in 2020 at "Tectonophysics"
DOI: 10.1016/j.tecto.2020.228410
Abstract: Abstract We present an analysis of the wireline sonic logs acquired through Alpine Fault hanging wall rocks during the second phase of the Deep Fault Drilling Project (DFDP-2). Due to inaccuracy in the initial tool-processed… read more here.
Keywords: alpine fault; fault; zone surrounding; damage zone ... See more keywords
Seismic Anisotropy and Its Impact on Imaging the Shallow Alpine Fault: An Experimental and Modeling Perspective
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Geophysical Research"
DOI: 10.1029/2019jb019029
Abstract: The transpressional Alpine Fault in New Zealand has created a thick shear zone with associated highly anisotropic rocks. Low seismic velocity zones (LVZ) and high seismic reflectivity are recorded in the Alpine Fault Zone, but… read more here.
Keywords: fault; fault zone; seismic anisotropy; alpine fault ... See more keywords
Spatial Dependence of Dynamic Nonlinear Rock Weakening at the Alpine Fault, New Zealand
Sign Up to like & getrecommendations! Published in 2021 at "Geophysical Research Letters"
DOI: 10.1029/2021gl093862
Abstract: We perform laser ultrasonic measurements to investigate the spatial dependence of dynamic nonlinear weakening in rocks from the Alpine Fault, New Zealand. Rocks outside the damage zone display no nonlinear weakening. Within the damage zone… read more here.
Keywords: spatial dependence; alpine fault; dynamic nonlinear; rock weakening ... See more keywords
Fault zone architecture of a large plate-bounding strike-slip fault: a case study from the Alpine Fault, New Zealand
Sign Up to like & getrecommendations! Published in 2020 at "Solid Earth"
DOI: 10.5194/se-11-95-2020
Abstract: Abstract. New Zealand's Alpine Fault is a large, plate-bounding strike-slip fault, which ruptures in large ( Mw>8 ) earthquakes. We conducted field and laboratory analyses of fault rocks to assess its fault zone architecture. Results… read more here.
Keywords: slip; fault zone; alpine fault; zone ... See more keywords