seismic P-wave velocity
Prediction of seismic P-wave velocity using machine learning
... of seismic velocity as a function of depth are generally restricted to borehole locations and are therefore sparse in the world’s ...suitable seismic data, studies re- quiring knowledge of ...
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A new model for estimating subsurface ice content based on combined electrical and seismic data sets
... In this study we will present a first approach for a so-called 4-phase model (4PM), which is amenable for explicit calcu- lation of the four phases based on 2-D tomographic electri- cal and seismic measurements. ...
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Integral analysis of seismic refraction and ambient vibration survey for subsurface profile evaluation
... primary velocity for weathered rocks was varied at ...primary velocity value for hard rocks and granite was varied at 2400 – 6000 ...condition. Seismic velocity of earth materials may be ...
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Three dimensional P wave velocity structure of shallow crust beneath the northern Awaji Island derived from refraction seismic explosion
... The Hyogo-ken Nanbu (Kobe) earthquake (M7.2) oc- curred on January 17, 1995, and brought severe damage to the southern part of the Hyogo Prefecture. After this earthquake, various studies were carried out concerning the ...
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A new model of the upper mantle structure beneath the western rim of the East European Craton
... form P wave traveltime analysis using 1-D and 2-D forward ray-tracing modelling for the distances of up to 3000 ...natural seismic events from four azimuthal spans with epicentres in the western ...
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Traces of the crustal units and the upper-mantle structure in the southwestern part of the East European Craton
... passive seismic experiment PASSEQ 2006–2008, which took place around the Trans-European Suture Zone (TESZ) from May 2006 to June ...teleseismic P waves of 101 earthquakes (EQs) recorded in the ...
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Lithospheric structure of the Arabian Shield from joint inversion of P- and S-wave receiver functions and dispersion velocities
... new velocity models of lithospheric thickness and velocity structure for the Arabian Shield by jointly inverting multiple data sets have been tried: P-wave receiver functions, S-wave ...
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Influence of a velocity model and source frequency on microseismic waveforms: some implications for microseismic locations
... the seismic injection efficiency of each bed (Maxwell et ...micro- seismic attributes, such as source mechanism ...or seismic anisotropy ...uses P–wave and/or S–wave arrival time ...
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Finite-difference modelling to evaluate seismic P-wave and shear-wave field data
... the wave field. For the P-wave data, we set up a processing scheme (Table 1) focusing on the en- hancement of the reflections ...detailed velocity anal- ysis left a certain tolerance within ...
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Estimation of seismic wave velocity and attenuation in deep geological layers using vertical array seismic observation
... the P waves from all records was ...for P and S waves, respectively) calculated from the 1D velocity model (see Figure 1), assuming a plane wave with normal ...plane wave with normal ...
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Seismic structure and anisotrophy in southern Africa's lithosphere : constraints from broad band surface wave dispersion
... Figure 2.6 presents the depth distribution of the sensitivity of Rayleigh and Love waves phase velocities to the S-wave velocity, P-wave velocity and density at five different peri ods.[r] ...
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Characterization of a complex near-surface structure using well logging and passive seismic measurements
... sive seismic measurements to characterize the near-surface geology of an area located in Hontomin, Burgos ...reduced velocity is ...passive seismic mea- surements: three arrays and 224 seismic ...
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Modeling Investigation of Correlations between Elastic Properties Predicted by Rock Physics Model with Seismic Data (Case Study of an Iranian Oil Field)
... graph P-wave velocity versus the porosity is plotted and considered as the rock physics tem- ...on P-wave velocity in carbonate ...
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Geological Exploration of Beachrock through Geophysical Surveying on Yagaji Island, Okinawa, Japan
... surface seismic survey were conducted to detect the underground structure of the beachrock on Yagaji Island, Okinawa, ...and seismic wave ...S-wave velocity is about 325 m / s, the ...
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Laboratory Scale Seismic Surface Wave Testing for the Determination of Soil Elastic Profiles
... interfering P and S waves at the ground surface ...surface wave velocity does not vary with ...surface wave velocity varies with frequency where there is a variation in stiffness with ...
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Poisson’s Ratio of Surface Soils and Shallow Sediments Determined from Seismic Compressional and Shear Wave Velocities
... V p V s ratio usually viewed as lithology discriminator were determined for each location (Table ...the velocity in- creases with ...V p and V s is about ...
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Soil velocity profile on soft soil using seismic refraction
... Soil velocity profile often used as subsurface characterization by using geophysical ...technique. Seismic refraction is one of non-intrusive geophysical technique mainly used to determine the primary ...
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Continuous observation of seismic wave velocity and apparent velocity using a precise seismic array and ACROSS seismic source
... of seismic waves generated by an ACROSS artificial seismic ...direct P- and S -waves and refracted P- and S - waves that traveled along a velocity boundary between the granite basement ...
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Lateral non homogeneities characterization using seismic surface wave
... The results demonstrated that there was an apparent relationship between wavelength and the lateral, or horizontal, span of the effective measurement region. The shape and size of the effective region of measurement in ...
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Seismic Surface Wave Analysis for Layering Information of the Crust Using Sikim Earthquake
... The aim of the current research is to study the crustal structure / shallow depth hence the depth of 54.0 km is being considered here. The S-wave velocities of the layers are free to change during the inversion. ...
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