Results 71 to 80 of about 2,212,553 (293)

Radiative zone solar magnetic fields and g-modes [PDF]

open access: yes, 2005
We consider a generalized model of seismic-wave propagation that takes into account the effect of a central magnetic field in the Sun. We determine the g-mode spectrum in the perturbative magnetic field limit using a one-dimensional Magneto-Hydrodynamics
Rashba, T. I.   +2 more
core   +2 more sources

Application of 2D Variational Mode Decomposition Method in Seismic Signal Denoising

open access: yesElektronika ir Elektrotechnika
Seismic data are typical nonlinear and nonstationary data. In the acquisition and processing of seismic data, many factors interfere with it. Seismic data contain both effective waves and random noises, seriously affecting the quality of seismic data and
Chao Liu   +4 more
doaj   +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

Expedition 302 geophysics: integrating past data with new results [PDF]

open access: yes, 2006
In preparation for IODP Expedition 302, Arctic Coring Expedition (ACEX), a site survey database comprising geophysical and geological data from the Lomonosov Ridge was compiled.
Backman, J.   +32 more
core   +1 more source

Seismic characteristics of polygonal fault systems in the Great South Basin, New Zealand

open access: yesOpen Geosciences, 2020
A well-developed multi-tier polygonal fault system is located in the Great South Basin offshore New Zealand’s South Island. The system has been characterised using a high-quality three-dimensional seismic survey tied to available exploration boreholes ...
Jitmahantakul Sukonmeth   +3 more
doaj   +1 more source

Seismic Ray Impedance Inversion [PDF]

open access: yes, 2010
This thesis investigates a prestack seismic inversion scheme implemented in the ray parameter domain. Conventionally, most prestack seismic inversion methods are performed in the incidence angle domain.
Lu, Xiaolin, Lu, Xiaolin
core   +1 more source

Application of High-Resolution Seismic Interpretation Methods to Reconstruct Depositional Paleoenvironment of Machów Formation in the Central Part of Carpathian Foredeep

open access: yesApplied Sciences
The depositional environment of the Machów Formation in the central part of the Carpathian Foredeep is still relatively poorly understood. Although lithological variability, facies diversity, and depositional history have been described in many ...
Anna Łaba-Biel   +3 more
doaj   +1 more source

Methane Hydrate Stability and Potential Resource in the Levant Basin, Southeastern Mediterranean Sea

open access: yesGeosciences, 2019
To estimate the potential inventory of natural gas hydrates (NGH) in the Levant Basin, southeastern Mediterranean Sea, we correlated the gas hydrate stability zone (GHSZ), modeled with local thermodynamic parameters, with seismic indicators of gas.
Ziv Tayber   +3 more
doaj   +1 more source

Improving the Knowledge on Seismogenic Sources in the Lower Tagus Valley for Seismic Hazard Purposes [PDF]

open access: yes, 2012
The Lower Tagus Valley, that includes the metropolitan area of Lisbon, has been struck by several earthquakes which produced significant material damage and loss of lives. Their exact location remains unknown.
Borges, J. F.   +8 more
core   +1 more source

Stratigraphic Overview of Palaeogene Tuffs in the Faroe-Shetland Basin, NE Atlantic Margin [PDF]

open access: yes, 2017
Acknowledgements We are very grateful to PGS for generously donating seismic datasets. Seismic interpretation was carried out using IHS Kingdom software, and wells were downloaded from the UK Oil & Gas Common Data Access Welllog interpretation was ...
Archer, Stuart   +7 more
core   +1 more source

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