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by Virginia Heffernan on July 7, 2014 library
The release of Geophysics for the Mineral Exploration Geoscientist, a new book from Cambridge University Press, meets the demand for a minerals industry-focused geophysical textbook written by practitioners for practitioners.
Available as either a hardback or eBook, the 515-page textbook is a comprehensive overview of geophysical methods, including gravity, magnetics, radiometrics, electromagnetics, and electrical and seismic techniques, according to the publisher. Written with the exploration geologist in mind, the book explains the basic theory of each technique without using complex mathematics.
Co-authors Michael Dentith of the University of Western Australia and Stephen Mudge of Vector Research Pty Ltd explain the principles, current practice and common pitfalls of acquiring and processing data, creating geological models of the subsurface, and interpreting data to find hidden deposits.
A unique aspect of the book is that it includes detailed descriptions of petrophysics, including magnetic susceptibility, remnant magnetism, and electrical properties such as conductivity, resistivity and polarizability. There is an emphasis on geological controls of physical rock properties, especially the different types of alteration associated with mineralization.
The book includes more than 300 figures incorporating both new and published data from 74 mineral deposits chosen to represent all the major ore deposit types and mineralized geological environments. The images were created by Duncan Cowan of Cowan Geodata Services, who made extensive use of Geosoft Oasis montaj. Supporting on-line resources include appendices with explanations of vectors, waves and geophysical methods less well known to the exploration community.
Professor Dentith says such a comprehensive, full-colour volume would not have been available to the mining market without sponsorship from the Centre for Exploration Targeting and private sector contributors AngloGold Ashanti, Carpentaria Exploration, First Quantum Minerals, MMG, Rio Tinto and