Special Event

37th Annual Convention Seminar & Exhibition on Exploration Geophysics

October 15 - 17, 2015
Hotel Radisson Blu
Jaipur, India | Website


Geosoft will be attending the 37th Annual Convention Seminar & Exhibition on Exploration Geophysics and our team looks forward to hosting two special events.

Geosoft Talk: Using Power Spectra for Potential Field Data Interpretation – challenges and cautions

Date: Saturday, October 17, 2015
Time: 9:30am - 10:00am
Authors: Ash Johnson (presenting) and Ian MacLeod, Geosoft Inc.

The use of power spectra as an early stage in potential field data interpretation is well established, have been initially popularized by the landmark 1970 paper by Spector and Grant. It is still extremely common to see figures of power spectra with interpreted slopes and associated depth estimations in papers and presentations across the world. While this automated method is quick and easy for the user, and made more so by the various implementations in potential field data processing software systems, there are a number of assumptions detailed in the original and subsequent papers that should be considered. We will briefly review the Spector and Grant method and associated spectral methods and highlight the assumptions which are often overlooked in the drive to get a quick interpretation. Careful consideration of these assumptions when using spectral methods will always lead the interpreter to a more thoughtful and scientifically valid conclusion.

Workshop: Geophysical inversion modelling for resource exploration

Date: Thursday, October 15, 2015
Time: 10:30am - 2:00pm
Presenters: Ash Johnson, Geosoft Inc., Nasreddine Bournas, Geotech


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