Search Results - "Lilley, F. E. M."

Characterization of the magnetotelluric tensor in terms of its invariants by Weaver, J. T., Agarwal, A. K., Lilley, F. E. M.

“…The magnetotelluric impedance tensor is defined in terms of seven independent parameters that are invariant under a rotation of the horizontal axes on the…”
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Earth's magnetic field: ocean current contributions to vertical profiles in deep oceans by Lilley, F. E. M. (Ted), White, Antony, Heinson, Graham S.

“…The Earth's main magnetic field, arising in the core, should, in the ocean, have a well-defined uniform gradient with depth. Superimposed upon this uniform…”
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Sea-surface observations of the magnetic signals of ocean swells by Lilley, F. E. M., Hitchman, A. P., Milligan, P. R., Pedersen, T.

“…Ocean swells have a magnetic signal, caused by the motional induction of sea water moving in the steady main magnetic field of Earth. To check the character of…”
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The quiet daily variation in the total magnetic field: Global curves by Hitchman, A. P., Lilley, F. E. M., Campbell, W. H.

“…Most magnetic mapping exercises involve measuring the amplitude, or total‐field component, of Earth's magnetic field. Removing the time‐varying part of the…”
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Rifting of a passive margin and development of a lower-crustal detachment zone: Evidence from marine magnetotellurics by Heinson, Graham, White, Antony, Lilley, F. E. M.

“…Rifting of passive margins has, in some places, led to the development of extensive submerged continental platforms. Crustal thinning by a factor of two or…”
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Geomagnetic induction in the Tasman Sea and electrical conductivity structure beneath the Tasman Seafloor by Ferguson, I. J., Lilley, F. E. M., Filloux, J. H.

“…During the Tasman Project of Seafloor Magnetotelluric Exploration recordings were made of the natural magnetic and electric field variations along a line of…”
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Inversion of magnetometer array data by thin-sheet modelling by Wang, L. J., Lilley, F. E. M.

“…A conjugate gradient relaxation method is employed in seeking an iterative solution to a particular 3-D electromagnetic inverse problem. The problem, which is…”
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Electromagnetic induction information from differences at aeromagnetic crossover points by Hitchman, A. P., Lilley, F. E. M., Milligan, P. R.

“…This paper describes an investigation of the use of aeromagnetic crossover misfits as a source of geological information. The misfits occur when, at a…”
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Induction arrows from offshore floating magnetometers using land reference data by Hitchman, A. P., Lilley, F. E. M., Milligan, P. R.

“…Induction arrows are a traditional output of magnetovariational experiments, and represent transfer functions used quantitatively in the inversion of…”
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On kinematic dynamos by Lilley, F. E. M.

“…The method developed by Bullard & Gellman, to test flows of electrically conducting fluid in a sphere for dynamo action, is applied further to the…”
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Magnetic observations of the solar eclipse of 23 October 1976 in Australia by LILLEY, F. E. M, WOODS, D. V

“…To monitor any geomagnetic effects of the solar eclipse of 23 October 1976, recording magnetometers have been operated at 10 sites in central and eastern…”
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Towards an electrical conductivity model for Australia by Corkery, R. W., Lilley, F. E. M.

“…A compilation of the gross surface geology of the Australian continent is presented. On a grid-scale of 180 km, electrical conductances are estimated down to a…”
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A Polarization-sensitive Magnetic Variation Anomaly in South Australia by GOUGH, D. I, LILLEY, F. E. M, McELHINNY, M. W

“…LARGE two-dimensional arrays of magnetometers, recording time-varying magnetic fields from ionospheric currents, have been used to study local variations in…”
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Phases greater than 90° in MT data: Analysis using dimensionality tools by Lilley, F.E.M., Weaver, J.T.

“…An example of magnetotelluric data is discussed which has distinctive phase values out of quadrant, and for which the Z xx element of the measured tensor is…”
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Rifting of a passive margin and development of a lower-crustal detachment zone : Evidence from marine magnetotellurics by HEINSON, Graham, WHITE, Antony, LILLEY, F. E. M

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Anomalous geomagnetic variations and the concentration of telluric currents in south-west Queensland, Australia by Woods, D. V., Lilley, F. E. M.

“…A pattern of geomagnetic fluctuations in central Australia shown by a magnetometer array with instruments spaced at distances of order 100 km has been…”
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Geomagnetic induction and conductive structures in north-west India by Arora, B. R., Lilley, F. E. M., Sloane, M. N., Singh, B. P., Srivastava, B. J., Prasad, S. N.

“…Magnetic disturbance events and quiet daily variation as recorded by the 1979 magnetometer array study in north-west India are analysed for evidence of…”
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A Magnetometer Array Study Across Southern Victoria and Bass Strait Area, Australia by Lilley, F. E. M.

“…A second magnetometer array study in south-east Australia has clarified anomalous effects discovered earlier, and revealed a linear conductor striking…”
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Electrical conductivity anomalies and continental seismicity in Australia by LILLEY, F. E. M

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The Analysis of Daily Variations Recorded by Magnetometer Arrays by Lilley, F. E. M.

“…A procedure is proposed for the analysis of daily variations recorded by magnetometer arrays, based upon the analysis of each quiet day as an individual and…”
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