Geology of the northwestern portion of the Ferriere-Mollieres Shear Zone, Argentera Massif, Italy [PDF]
The Ferriere-Mollieres Shear Zone (FMSZ) is a regional shear zone cross-cutting the Argentera External Crystalline Massif (Western Alps). It shows a NW-SE striking dextral shear zone separating two Variscan migmatitic complexes: the Tinèe to the SW and the Gesso-Stura-Vesubiè to the NE.
Carosi R+4 more
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Constraining the Timing of Evolution of Shear Zones in Two Collisional Orogens: Fusing Structural Geology and Geochronology [PDF]
In recent decades, constraining the timing of shear activity has been one of the main topics of research about the tectono-metamorphic evolution of orogenic belts. We present a review of a combined structural and geochronological approach to two major ductile regional shear zones, in two collisional orogens: the first one affecting the Variscan ...
Rodolfo Carosi+5 more
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En este trabajo se ha definido la estructura de velocidades de ondas S (VS) y P (VP), así como el promedio de velocidades (V s30 ) para los primeros 30 metros del subsuelo, a partir de perfiles sísmicos de refracción en el área de Linares, Nuevo León, tomándose como indicador de las condiciones de sitio.
J. C. Montalvo-Arrieta+5 more
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Geology of the coastal Chiapas (Mexico) Miocene plutons and the Tonalá shear zone: Syntectonic emplacement and rapid exhumation during sinistral transpression [PDF]
Late Miocene plutons in coastal Chiapas, Mexico, represent the roots of an extinct magmatic arc. Miocene granitoids of calc-alkaline composition and arc chemistry intruded into and were deformed within the Tonala mylonite belt in the middle to upper crust. The mylonite belt is a crustal-scale shear zone extending along the western margin of the Chiapas
Alexander Iriondo+6 more
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Development and Comparison of 3D Seismic Geology and Shear-wave Velocity Models of Metro Vancouver
This study presents a 3D regional modeling of seismic geology and shear wave velocity (Vs) in Metro Vancouver for seismic microzonation and hazard prediction. Leveraging an extensive geodatabase compiled from invasive and non-invasive in situ data, including lithological logs and seismic field data, we delineated four major geological units: Holocene ...
Sujan Adhikari, Sheri Molnar
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Geology and geochemistry of radon in shear zones
Linda C. S. Gundersen+3 more
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Shear strength of dry tills from the southern half of Norway in relation to bedrock geology [PDF]
Øystein Lid Opsal
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Fuzzy set concept in structural geology: Example of ductile simple shear
Much of the time, geological data are not accurately known. Instead, geoscientists work with a range of possible data. These data can have a range since they can vary spatially and temporally. In this context, we demonstrate how a well-established structural geological model of velocity profile of ductile simple shear, expressed as an equation, can be ...
Soumyajit Mukherjee+2 more
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Geology of the Susa Shear Zone (Susa Valley, Western Alps) [PDF]
The 1:10,000 scale geological map of the Susa Shear Zone (SSZ) in the inner sector of the Western Alps, aims to describe the geological setting and tectonic evolution of a first-order Alpine shear zone, which drove exhumation and juxtaposition of different oceanic and continental margin units (i.e.
Ghignone, Stefano+3 more
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Geology, Great Slave Lake Shear Zone, District of Mackenzie, Northwest Territories
G.M. Wright, Simon Hanmer
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