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SpatialNews.com Press Release
Is there another Broken Hill?
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Professionals working in the mineral exploration industry will be interested in the release of new
geophysical point-located gravity data for the Broken Hill - Menindee area in New South Wales.
The new data were acquired
as part of Geoscience
Australia's ongoing program
to add to the Australian
National Gravity Database.
Data from the new and
existing stations will assist in
the ground truth study of
recently acquired airborne
gravity data over the same
geographic area near Broken
Hill.
The Broken Hill - Menindee
gravity data set consists of
182 new gravity stations from
a May 2003 gravity survey
and 20,514 gravity stations
from pre-2003 gravity
surveys all located near Broken Hill. The diagram here shows the distribution of old and new gravity
data. This new data set is an adjunct to the Australian National Gravity Database, released in May
2003, which contains information on gravity surveys conducted in Australia and its offshore
territories.
The new data were acquired in May 2003 in three separate areas around Broken Hill. As part of the
contract, terrain corrections were calculated for the new data as well as for the 20,514 existing
gravity stations. This data release includes the terrain corrected gravity values presented as
Complete Bouguer Anomaly values for both new and existing data. The existing data sourced from
Geoscience Australia, NSW Department of Mineral Resources and industry surveys have previously
been released with Simple Bouguer Anomaly values only.
For full details on the data which is available in digital form on CD and also as a download see http://www.ga.gov.au/rural/projects/Gravity_25july03.jsp
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