Stallion. regarding your post, with exerts of a previous write-up, i saw some interesting points that i feel the readers out here should take note of...
In the paragraph that reads...
South Australia hosts the giant Olympic Dam copper-uranium-gold-silver orebody, and has the same terrain that contains the massive Broken Hill lodes. This area had been largely unexplored because of widespread sedimentary and soil cover. Major refinements in
aeromagnetic surveying techniques, data processing and computer-aided interpretation now provide a quick and efficient method of exploring these highly prospective terrains. In all, South Australia boasts 93 mines and mineral deposits. Perhaps, there are more to come - a diamond mine, for example?
Now reading these words above i'd like to draw your attention to yet another property that Caldera holds. It is called the Oodnadatta project and is located in the Northern region of south Australia.
Caldera holds a 75% interest in two exploration licences totalling 456 Square Kilometers in the Proterozoic Gawler Craton. These two licences were originally acquired on the basis of geological models that indicate potential for precious and base metal mineralization with very strong similarities to the Olympic Dam style of mineralization: iron metasomatism in the precambrian basement.
The Gawler Craton is currently the focus of greatly increased exploration activity with considerable optimism being generated for the gold potential of the region. Much of this exploration activity has been concentrated on testing of discrete magnetic and gravity anomalies . The very positive gold intersections announced by Helix Resources NL on its own tenements were obtained through blind drilling of a large magnetic feature.
In 1993, Caldera Australia conducted a regional aeromagnetic survey in this area with two types of targets as the objective: diamondiferous kimberlite/lamproite pipes and precious metal-base metal mineralization in the basement.
This survey identified 16 magnetic features that warranted further investigation. Of these targets, 8-10 are considered to have excellent potential for gold mineralization. A total of 12 magnetic anomalies have been selected for detailed follow-up evaluation.
The geophysical aeromagnetic data shows the selected targets as elatively simple, approximately circular anomalies varying in size from about 800-3,500 meters in diameter. This pattern would agree with the expected geological model for Olympic Dam style mineralisation.
However, the style of mineralisation is such that mineralisation rarely has a regular shape and its areal extent may be measured in a few hundreds of meters. The prospects for success in drill testing such targets may be significantly increased through conducting sufficient detailed target definition work before attemting drill testing. The regional aeromagnetic data is not sufficiently precise to site drill holes. The future proposal recommends detailed gravity surveys in conjunction with detailed ground magnetic surveys be undertaken as a matter of necessity to define targets more precisely for drill testing. Approximately $480,000 CDN has been earmarked for development of the Oodnadatta project which will be further developed in 1998.
Hope this sheds further light to the prospects within our holdings.
Jason |
