Browsing by Author "Brown, Colin"
Now showing items 1-13 of 13
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A magnetotelluric study of the alpine fault, new zealand
Ingham, Malcolm; Brown, Colin (Oxford University Press (OUP), 1998-11-01)Magnetotelluric soundings have been made at seven locations on a 4 km profile crossing the Alpine Fault in the South Island of New Zealand. The 'distortion' techniques of Groom & Bailey (1989) and Lilley (1998 a,b) have ... -
Characterization of a Crustal Transition Zone in Northern Tibet using Magnetotelluric Modelling
Le Pape, Florian (2013-10-25)The overall objective of the final phase of the INDEPTH (International Deep Profiling of Tibet and Himalaya) project has been to develop a better understanding of the structure and evolution of the northern margins of the ... -
High-resolution habitat suitability modelling of vulnerable marine ecosystems in the deep sea
Rengstorf, Anna Maria (2013-02-15)Knowledge of the spatial distribution of species and habitats is crucial for effective management of marine resources. Data to support informed decision-making in the deep sea are often sparse or absent, as offshore sampling ... -
Inversion of magnetotelluric data in an anisotropic domain
Mandolesi, Eric (2014-02-10)The aim of this study was to develop a set of tools -- algorithms that would be translated into computer programs at a later stage -- to invert anisotropic magnetotelluric data within a framework that integrates ... -
Magnetotelluric apparent resistivity tensors for improved interpretations and 3-D inversions
Hering, P.; Brown, Colin; Junge, A. (American Geophysical Union (AGU), 2019-07-25)The complex magnetotelluric (MT) apparent resistivity tensor can be decomposed into two real tensors, the apparent resistivity and the resistivity phase tensors, which represent relationships between the observed electric ... -
Magnetotelluric research of the Rathlin Basin
Delhaye, Robert (NUI Galway, 2018-12-24)The IRETHERM Project was funded under SFI PI Grant 10/IN.1/I3022, with the aim of addressing uncertainties and gaps in the knowledge of potential geothermal resources within Ireland. This thesis presents geophysical ... -
Magnetotelluric tensors, electromagnetic field scattering and distortion in three-dimensional environments
Brown, Colin (American Geophysical Union, 2016-10-28)This paper describes how subsurface resistivity distributions can be estimated directly from the magnetotelluric (MT) tensor relationship between electric and magnetic fields observed on a three-dimensional (3-D) half-space. ... -
Multidimensional isotropic and anisotropic investigation of the Tajo Basin subsurface - A novel anisotropic inversion approach for subsurface cases with oblique geoelectric strike directions
Schmoldt, Jan-Philipp (2011-07-05)The Tajo Basin and Betic Cordillera are the areas investigated by the first phase of the PICASSO (Program to Investigate the Convective Alboran Sea System Overturn) project in south-central Spain. The magnetotelluric (MT) ... -
Multidimensional magnetotelluric imaging of crustal and uppermost mantle structures of the Atlas mountains of Morocco
Kiyan, Duygu (2015-04-16)The primary goal of the PICASSO (Program to Investigate Convective Alboran Sea System Overturn) project, and the concomitant TopoMed (Plate reorganization in the western Mediterranean: Lithospheric causes and topographic ... -
Sediment mobility modelling and hydrodynamic properties of maerl
Joshi, Siddhi (2016-11-11)Sediment mobility modelling is a useful tool for scientifically robust marine spatial planning and characterisation of the benthic disturbance regime. As a prerequisite to modelling sediment transport of free living coralline ... -
Tectonic interpretation of regional conductivity anomalies
Brown, Colin (Springer Nature, 1994-03-01)This review paper selects key result, from electromagnetic induction studies of a variety of distinctive tectonic phenomena in the top 200 km of the Earth. Its main theme is that electromagnetic data are essential for an ... -
The magnetotelluric phase tensor
Caldwell, T. Grant; Bibby, Hugh M.; Brown, Colin (Oxford University Press (OUP), 2004-08-01)The phase relationships contained in the magnetotelluric (MT) impedance tensor are shown to be a second-rank tensor. This tensor expresses how the phase relationships change with polarization in the general case where the ... -
Three-dimensional Magnetotelluric Inversion
Avdeeva, Anna (2008-01)The main objective of my PhD research is developing a better understanding of the mathematics, physics and numerical aspects of 3D MT inversion. This should lead to a working software that allows inversion of MT datasets ...