Understanding imaging methods for potential field data

M Fedi, M Pilkington - Geophysics, 2012 - library.seg.org
Several noniterative, imaging methods for potential field data have been proposed that
provide an estimate of the 3D magnetization/density distribution within the subsurface or that …

Influence of water pressure dynamics and fluid flow on the streaming‐potential response for unsaturated conditions

V Allègre, L Jouniaux, F Lehmann, P Sailhac… - Geophysical …, 2015 - earthdoc.org
Streaming‐potentials are produced by electrokinetic effects in relation to fluid flow and are
used for geophysical prospecting. The aim of this study is to model streaming potential …

2D continuous wavelet transform of potential fields due to extended source distributions

M Fedi, F Cella, T Quarta, AV Villani - Applied and Computational Harmonic …, 2010 - Elsevier
We analyse the real Continuous Wavelet Transform 2D (CWT2D) of potential fields for the
investigation of potential field singularities. We focus our attention to extended geological …

Depth determinations of shallow hydrothermal systems by self-potential and multi-scale wavelet tomography

G Mauri, G Williams-Jones, G Saracco - Journal of Volcanology and …, 2010 - Elsevier
In hydrothermal studies, the depth of the hydrothermal system is always required, but rarely
known via traditional geophysical exploration techniques. While previous studies have …

Wavelet-based higher order correlative stacking for seismic data denoising in the curvelet domain

JH Li, YJ Zhang, R Qi, QH Liu - IEEE Journal of Selected Topics …, 2017 - ieeexplore.ieee.org
To whiten random noise and identify coherent noise while preserving the features of seismic
events, a hybrid denoising scheme of wavelet-based higher order correlative stacking …

Curvelet-based seismoelectric data processing

S Warden, S Garambois, P Sailhac… - Geophysical Journal …, 2012 - academic.oup.com
Seismoelectromagnetic conversions are induced through electrokinetic phenomena
occurring when passing seismic waves induce relative fluid to solid displacements …

A geochemical and geophysical investigation of the hydrothermal complex of Masaya volcano, Nicaragua

G Mauri, G Williams-Jones, G Saracco… - Journal of Volcanology …, 2012 - Elsevier
Masaya volcano, Nicaragua, is a persistently active volcano characterized by continuous
passive degassing for more than 150years through the open vent of Santiago crater. This …

MWTmat—application of multiscale wavelet tomography on potential fields

G Mauri, G Williams-Jones, G Saracco - Computers & geosciences, 2011 - Elsevier
Wavelet analysis is a well-known technique in the sciences to extract essential information
from measured signals. Based on the theory developed by previous studies on the Poisson …

Composite continuous wavelet transform of potential fields with different choices of analyzing wavelets

M Fedi, L Cascone - Journal of Geophysical Research: Solid …, 2011 - Wiley Online Library
In potential field problems, the continuous wavelet transform (CWT) has allowed the
estimation of the source properties, such as the depth to the source and the structural index …

New insights into the Kawah Ijen hydrothermal system from geophysical data

C Caudron, G Mauri, G Williams-Jones… - Geological Society …, 2017 - lyellcollection.org
The magmatic–hydrothermal system of Kawah Ijen volcano is one of the most exotic on
Earth, featuring the largest acidic lake on the planet, a hyper-acidic river and a passively …