On Time-Domain Transient Electromagnetic Soundings Ruizhong Jia and Ross Groom, PetRos EiKon, Concord, Ontario, Canada Some issues in modelliing TEM responses and their relevance to real-world systems and geology

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Magnetic Case Study: Raglan Mine Laura Davis May 24, 2006 Research Objectives The objective of this study was to test the tools available in EMIGMA (PetRos Eikon) for their utility in analyzing magnetic data in terms of

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Deep, Accurate Structural Interpretations through Time Domain EM Techniques L.J. Davis and R.W. Groom, Petros Eikon Inc. Summary Location

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• Colorado River
• Grand Canyon
• Geophysics
• Geography of Arizona
• Inversive geometry
• Western United States
• Seismology
• Geology
• Colorado Plateau

Crosshole Ra dio I m a ging T om ogra phy A ne w front ie r in Equipm e nt a nd Soft w a re Petros Eikon Inc, Brampton Frontier Geosciences, Vancouver

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• Amplitude
• Sound
• Physics

Processing gradients of magnetic data utilizing an equivalent source technique Ruizhong Jia and Ross Groom, PetRos EiKon, Brampton, Ontario, Canada TOPICS •

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• Digital signal processing
• Fast Fourier transform

Inversion of Ground Gravity and Airborne Gradient Data Ruizhong Jia, Ross Groom, PetRos EiKon Inc Bob Lo, BHL Earth Sciences Society of Exploration Geophysicists, Houston, 2005

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• Eotvos
• Measurement
• Fast Fourier transform
• Applied mathematics
• Mathematics
• Image processing
• Signal processing
• Deconvolution

NEW APPROACHES TO TOPOGRAPHIC GRAVI TY CORRECTIONS Ruizhong Jia, PetRos EiKon, Brampton, Ontario, Canada Laura Davis, PetRos EiKon, Brampton, Ontario, Canada R. W. Groom, PetRos EiKon, Brampton, Ontario, Canada Abstract

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• Interpolation
• Geography
• Cartography
• Splines
• Geodesy
• Natural neighbor
• Bicubic interpolation
• Digital elevation model
• Cubic Hermite spline
• Multivariate interpolation
• Image processing
• Topography

Three-dimensional sensitivity distribution of low-induction-number frequency-domain electromagnetic instruments James B. Callegary (USGS, Tucson), Ty P.A. Ferré (University of Arizona), and R.W. Groom (PetRos EiKon) LOC

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• Analytic geometry
• Three-dimensional space

On some issues regarding 3D-gravity inversion Ruizhong Jia*, Petros Eikon Inc. R.W. Groom, Petros Eikon Inc. Summary Gravity surveys have been used in the investigations of oil and mineral explorations. The inversion of

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Sunday Odedele, MCIPR, MPRII Petros-Faith Public Relations Consult 57, Cardoso Street, off LUTH gate, Mushin, Lagos. P.O.Box 1323, Mushin, Lagos, Nigeria

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