Seismic anisotropy in cracked crystalline rock from Outokumpu, Finland
نویسندگان
چکیده
منابع مشابه
Constraints on Subduction Geodynamics from Seismic Anisotropy
[1] Much progress has been made over the past several decades in delineating the structure of subducting slabs, but several key aspects of their dynamics remain poorly constrained. Major unsolved problems in subduction geodynamics include those related to mantle wedge viscosity and rheology, slab hydration and dehydration, mechanical coupling between slabs and the ambient mantle, the geometry o...
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Cracks in a rock mass subjected to a uniaxial stress will be preferentially closed depending on the angle between the fracture normal and the direction of the applied stress. If the prestress fracture distribution is isotropic, the effective elastic properties of such a material are then transversely isotropic due to the preferred alignment of the cracks. Velocity measurements in multiple direc...
متن کاملSeismic Wave Propagation in Fractured Carbonate Rock
Laboratory experiments were performed on cubic samples of Austin Chalk to investigate the effect of fabric-induced anisotropy on the interpretation of fracture specific stiffness. The experimental results found that the fabric-induced layering complicates the interpretation of fracture specific stiffness. Seismic measurements from a sample with small layers (i.e., spacing and thickness) show th...
متن کاملPractical applications of seismic anisotropy
s, 1139–1142. Grechka, V., Mateeva, A., Gentry, C., Jorgensen, P, Lopez, P. and Franco, G. [2007] Estimation of seismic anisotropy from P-wave VSP data. The Leading Edge, 26(6), 756–759. Hudson, J.A. [1981] Wave speeds and attenuation of seismic waves in materialc containing cracks. Geophysical Journal of the Royal Astronomical Society, 64, 133–150. CC02339-MA009 Seabird Exploration.indd 10...
متن کاملMantle dynamics and seismic anisotropy
a r t i c l e i n f o Keywords: seismic anisotropy mantle flow geodynamic modeling shear wave splitting surface wave analysis mantle convection Observations of seismic anisotropy yield some of the most direct constraints available on both past and present-day deformation in the Earth's mantle. Insight into the character of mantle flow can also be gained from the geodynamical modeling of mantle ...
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ژورنال
عنوان ژورنال: ASEG Extended Abstracts
سال: 2013
ISSN: 2202-0586
DOI: 10.1071/aseg2013ab186