Seismic Wave Velocities in Deep Sediments in Poland: Borehole and Refraction Data Compilation
نویسندگان
چکیده
منابع مشابه
Relationship between head wave amplitudes and seismic refraction velocities to detect lateral variation in the refractor
Refractor ambiguities are big problem in seismic refraction method especially in seismic engineering. There can be hidden subsurface geological phenomena such as hidden faults and shear zones which are not simply predicted by the travel-time graph or some geophysical methods. Head wave amplitudes are used to show the resolution of refractor ambiguities and the existence of anisotropy in complex...
متن کاملrelationship between head wave amplitudes and seismic refraction velocities to detect lateral variation in the refractor
refractor ambiguities are big problem in seismic refraction method especially in seismic engineering. there can be hidden subsurface geological phenomena such as hidden faults and shear zones which are not simply predicted by the travel-time graph or some geophysical methods. head wave amplitudes are used to show the resolution of refractor ambiguities and the existence of anisotropy in complex...
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We estimate shear-wave velocities in the shallow subsurface throughout Japan by applying seismic interferometry to the data recorded with KiK-net, a strongmotion network in Japan. Each KiK-net station has two receivers; one receiver on the surface and the other in a borehole. By using seismic interferometry, we extract the shear wave that propagates between these two receivers. Applying this me...
متن کاملComparison of seismic and borehole data at the same scale
Well-log measurements and seismic measurements should be compared at the same scale. The conversion of highly detailed borehole data into less detailed seismic data has to be done in a specific way considering conclusions from scaling analysis. One has to be careful with the differentiation to convert borehole acoustic impedance into reflectivity. In addition coarsening has to occur in such a w...
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A new method is presented for the direct inversion of seismic refraction data in dipping planar structure. Three recording geometries, each consisting of two common-shot profiles, are considered: reversed, split, and roll-along profiles. Inversion is achieved via slant stacking the common-shot wavefield to obtain a delay time-slowness (tau-p) wavefield. The tau-p curves from two shotpoints desc...
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ژورنال
عنوان ژورنال: Acta Geophysica
سال: 2015
ISSN: 1895-6572,1895-7455
DOI: 10.1515/acgeo-2015-0019