Results 41 to 50 of about 118,194 (289)

The potential of seismic cross-hole tomography for geotechnical site investigation [PDF]

open access: yesE3S Web of Conferences, 2019
Seismic cross-hole tomography has been commonly used in oil and gas exploration and the mining industry for the detection of precious resources. For near-surface geotechnical site investigation, this geophysical method is relatively new and can be used ...
Hing Ng Yannick Choy   +2 more
doaj   +1 more source

Focusing on Soil Foundation Heterogeneity through High-resolution Tomography [PDF]

open access: yes, 2016
An historical building affected by differential settlements, which were triggered by an earthquake, is investigated by means of high-resolution tomography, both electrical and seismic.
Cercato, Michele, DE DONNO, Giorgio
core   +1 more source

The 3D Attenuation Structure of Deception Island (Antarctica) [PDF]

open access: yes, 2016
Peer ...
De Siena, Luca   +5 more
core   +1 more source

Surface‐wave eikonal tomography in a scattering environment [PDF]

open access: yesSEG Technical Program Expanded Abstracts 2010, 2010
Surface waves are of increasing interest in seismic prospecting. Traveltime tomography based on dispersion measurements is often used to process surface-wave data, but it has limitations due to the a priori information it requires. The surface-wave eikonal tomography proposed here does not require such a priori information.
Verdel, Arie   +3 more
openaire   +3 more sources

Refraction-corrected ray-based inversion for three-dimensional ultrasound tomography of the breast [PDF]

open access: yes, 2020
Ultrasound Tomography has seen a revival of interest in the past decade, especially for breast imaging, due to improvements in both ultrasound and computing hardware.
Cox, Ben   +2 more
core   +3 more sources

Multichannel Analysis of Surface Waves (MASW) for the internal characterisation of the Flüela rock glacier: overcoming the limitations of seismic refraction tomography [PDF]

open access: yesThe Cryosphere
A multi-method geophysical campaign was carried out to characterize the subsurface of the Flüela rock glacier in Grisons, Switzerland, using electrical resistivity tomography (ERT), seismic refraction tomography (SRT), and multichannel analysis of ...
I. Barone   +6 more
doaj   +1 more source

Deformation of the Crust and Upper Mantle beneath the North China Craton and Its Adjacent Areas Constrained by Rayleigh Wave Phase Velocity and Azimuthal Anisotropy

open access: yesRemote Sensing, 2021
The North China Craton (NCC) has experienced strong tectonic deformation and lithospheric thinning since the Cenozoic. To better constrain the geodynamic processes and mechanisms of the lithospheric deformation, we used a linear damped least squares ...
Xiaoming Xu   +3 more
doaj   +1 more source

The Lithospheric Structure of the Middle Solonker−Xar Moron Suture by Surface-wave Tomography

open access: yesCT Lilun yu yingyong yanjiu, 2023
The middle section of the Solonker-Xar Moron suture and its surrounding areas have successively been affected by the closure of the Paleo-Asian Ocean during the Paleozoic, the closure of the Mongolian-Okhotsk Ocean during the Mesozoic, and the subduction
Mei FENG   +4 more
doaj   +1 more source

Finite-Frequency SKS Splitting: Measurement and Sensitivity Kernels [PDF]

open access: yes, 2008
Splitting of SKS waves caused by anisotropy may be analyzed by measuring the splitting intensity, i.e., the amplitude of the transverse signal relative to the radial signal in the SKS time window. This quantity is simply related to structural parameters.
Paulssen, Hanneke   +3 more
core   +1 more source

Ambient noise surface wave tomography of marginal seas in east Asia

open access: yesEarth and Planetary Physics, 2017
We conducted ambient noise tomography in east Asia, including the Chinese coastal provinces, Korea Peninsular, Japan, Taiwan Island, and marginal seas in between.
Qing Wang, XiaoDong Song, JianYe Ren
doaj   +1 more source

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