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Canadian Micro Gravity
CMG is the exclusive supplier of the new GT-1 series of mobile scalar gravimeters for use on a wide variety of fixed or rotary-wing aircraft, or for use on most vessels at sea.
The gravimeters are designed and manufactured by the award-winning team of scientists and engineers at Gravimetric Technologies Ltd in Moscow together with the gravity post-processing specialists at Moscow State University, and are distributed world-wide by CMG.
The images below show ground data (left) and airborne data collected over the Vredefort Dome impact crater in South Africa. They illustrate the high quality of data which is routinely collected by the GT-1A in difficult survey conditions.
The Vredefort survey is divided into two areas - the larger area to the west is 200 kms N-S by 60 kms, while the smaller area to the east is 100 by 60 kms. The western area was flown with N-S survey lines spaced 12 kms apart, having just 7 lines, while the smaller area to the East was flown with 2 km spaced N-S survey lines, giving a total of 31 lines and a correspondingly much higher resolution. The town of Vredefort lies near the geometric centre of the dome.
The ground data is provided courtesy The Geoscience Council of South Africa. The airborne data was commissioned and flown by Fugro Airborne Surveys in 2004. The full report on the Vredefort Dome survey, "GT-1A Airborne Gravity: A Case History over the Vredefort Dome, South Africa", was presented by Adam Wooldridge, Fugro Airborne Surveys, at the ASEG Airborne Gravity Workshop 2004 held at the ASEG conference in Sydney during August 2004. For a reference to the history and geology of the Vredefort Dome, including images from the Space Shuttle, visit http://www.hartrao.ac.za/other/vredefort/vredefort.html
CMG Contact Information
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Canadian Micro Gravity Ltd
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