Results 171 to 180 of about 1,055 (226)

Composition of Magma and Characteristics of the Hydrothermal System of Newberry Volcano, Oregon, From Magnetotellurics

Geochemistry, Geophysics, Geosystems, 2020
We use 3‐D magnetotellurics to improve our understanding of the structure and magma composition of Newberry Volcano in Oregon, USA. Newberry is a broad shield volcano with a summit caldera and strongly bimodal magmatism.
E Bowles-Martinez, Adam Schultz
exaly   +2 more sources

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Principles of Magnetotellurics

Methods in Geochemistry and Geophysics, 2014
A A Kaufman, D Alekseev, M Oristaglio
exaly   +2 more sources

magnetotellurics

, 2014
openaire   +2 more sources

Magnetotellurics

, 2007
Martyn Unsworth
openaire   +2 more sources

Magnetotellurics

, 2012
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Magnetotelluric exploration for hydrocarbons

Proceedings of the IEEE, 1989
The magnetotelluric (MT) method utilizes naturally occurring low-frequency electromagnetic energy to determine the electrical resistivity of the Earth's subsurface. The resistivity distribution of the subsurface is then interpreted in terms of rock type and geologic structure.
openaire   +1 more source

MTpy: A Python toolbox for magnetotellurics

Computers & Geosciences, 2014
We present the software package MTpy that allows handling, processing, and imaging of magnetotelluric (MT) data sets. Written in Python, the code is open source, containing sub-packages and modules for various tasks within the standard MT data processing and handling scheme.
Lars Krieger, Jared R. Peacock
openaire   +2 more sources

The Magnetotelluric Method

2012
The magnetotelluric method is a technique for imaging the electrical conductivity and structure of the Earth, from the near surface down to the 410 km transition zone and beyond. This book forms the first comprehensive overview of magnetotellurics from the salient physics and its mathematical representation, to practical implementation in the field ...
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Random scattering in magnetotellurics

Geophysics, 2001
Abstract Typical well logs show substantial variations of formation electrical resistivity over small spatial scales, down to the resolution of the logging tool. Using a plane stratified earth model, we examine the effects of this fine-scale microstructure on scattering of the naturally occurring electromagnetic (EM) waves used in ...
Benjamin S. White, Werner E Kohler, Leonard J Srnka   +2 more
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Directional noise cancelling in magnetotellurics

55th EAEG Meeting, 1993
In Magnetotelluric (MT) data processing, poor signal-to-noire ratio usually biaces the impedance tensor Z elements estimates. Strong electromagnetic (EM) noise may thus render the MT method impracticable in industrial areas. Noise due to periodic sources (i.e. power line harmonies) is easily removed by analog filtering in the field; but non-periodic EM
Spagnolini, U., Santarato, G.
openaire   +2 more sources