Deep Electromagnetic Exploration de K.K. Roy

Deep Electromagnetic Exploration: Lecture Notes in Earth Sciences, cartea 83

K.K. Roy

S. K. Verma

K. Mallick

en Limba Engleză Paperback – 20 ian 1999

Electromagnetic waves and their role in probing the earth are important for the exploration of the earth's deep crust. This book is not only for scientists in geophysics a useful source of information, but also for professionals in oil and gas exploration, geophysicists and engineers alike.

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Cuprins

Electromagnetic waves in geophysics: A personal perspective.- Role of electromagnetics in probing the earth.- Antennas in the geophysical environment.- Dilemmas of MT interpretation, EM field distortion or real indication of resistivity distribution.- The Fennoscandian Shield: A treasure box for deep electromagnetic studies.- Magnetotelluric technique.- Rotation invariant magnetotelluric tensors: A case study from West Singhbhum (Bihar, India).- Magnetotelluric model of Singhbhum granite batholith.- Telluric field observations during the earth tremor activity near Gandipet (Hyderabad, India).- Deep electrical conductivity investigations in some geothermal areas of India.- Frontier technologies for hydrocarbon exploration—electrical conductivity reference exploration (ECRE).- Technology and some results of deep electromagnetic soundings in the former USSR.- Direct current resistivity traversing across Singhbhum shear zone near Ghatshila-Mosabani (eastern India).- Oceanic mantle conductivity structure determined from magnetotelluric data: Hollister revisited.- Methods for the analysis and interpretation of the sea floor electromagnetic fields.- On the design of ocean bottom electrometer.- EM sounding of sea bottom around Indian peninsula.- Electromagnetic migration.- Numerical modelling in electromagnetic induction.- Thin-sheet modelling for deep electromagnetic studies in the Fennoscandian Shield.- The generation and thermal and electromagnetic effects of rising melt in a three-dimensional subducting lithospheric slab model.- Fast difference-differential modelling for geophysical electrodynamics.- The 2- and 3-D modelling of EM induction and current chanelling in the Saurashtra and adjoining regions.- Magnetotelluric response on a layered earth with non-monotonicresistivity distribution.- Application of robust estimation of transfer functions for a magnetovariational array in Eastern India.- Geophysical inversion.- Crustal resistivity inversion using global optimization techniques.- Backus-Gilbert magnetotelluric inversion.- Stochastic inversion of magnetotelluric data.- Computational efficiency of the matrix method in the inversion of resistivity sounding data.- Application of ground transient EM systems in geophysical exploration.- Diffusion of an electromagnetic pulse in a heterogeneous earth.- The theoretical study of a possible high resolution resistivity sounding technique for groundwater exploration in hard rocks.- Transient CFS response over a multilayer earth.- Frontier technologies for hydrocarbon exploration, deep transient electromagnetic sounding (DTEM).- Recent developments in quantitative interpretation of VLF-EM data.- A study on the possibility of assessing anisotropy due to 2-D structures from VLF-EM data.- Response resolution of shielded conductors through multifrequency measurements: A review.- Electromagnetic depth sounding on a transitional earth using large rectangular loop source.- Application of electromagnetic propagation logging in the interpretation of fresh water neogene sands of upper Assam tertiary basin (India).