Proterozoic Gold Mineralising events on Australian Proterozoic Georgions base, 1:5 000 000 October 2007 Version (PDF and JPG)

A magnetic survey of the Kunimo creek area near Kuta in the Central Highlands of New Guinea was carried out between July 17th and July 28th, 1950. It was hoped that the survey would trace the course of the auriferous wash originally laid down in the bed of a former creek but now concealed by overburden of soil and unconsolidated volcanic ash. This report gives an account of the magnetic survey and its results.

Geological investigation by the Bureau commenced late in July, 1948, and continued until the end of October of that year. The objects of the survey were to lay the foundation for future detailed studies of the mining field, to study the factors controlling ore localization, to assess the quantity and value of ore exposed to date, and to estimate the potential value of the field. In the search for orebodies, a knowledge of the geological factors can be of great assistance, and it is felt that the information given in this report and in the accompanying plans should be of considerable help in this respect. However, the prospector's methods - loaming, dollying, panning etc. are still quite fundamental to success in a prospecting field such as Tennant Creek and the suggestions made in this report are intended to supplement this type of work. The climate, topography, vegetation, gold production, general geology, and gold deposits of the area are described in this report. Detailed descriptions are given of the individual mines examined to date.

The Cobar field was visited during the period 18th to 24th July, mainly in connection with the exploration programme which is taking place in that area. During this visit, however, some information was obtained concerning the operations of the mines controlled by New Occidental Gold Mines, N.L., which company is being assisted financially by the Commonwealth. Estimated operational costs, grade, and production figures are given. The development, exploration, and future of the field are discussed.

Gold Mining Lease 1075 is situated at the head of Rowlands Creek, a tributary of Barola Creek. The workings are on the hillside just south of the head of Rowlands Creek and approximately five miles west-south-west from Kainantu Sub-District Office and Airstrip in the Eastern Highlands of New Guinea. The elevation of the workings is approximately 6,200 feet above sea-level. The area was examined by the writer in April, 1953. [The history and development of the lease, transport and resources, general geology, ore geology, the occurrence of the gold, and further prospects, are discussed in this report].

No abstract available

A map showing the distribution of selected mines and mineral depsosits for a range of commodities. It also shows the distribution of petroleum resources in basic form. The map base is the Radiometric Map of the Australian Region

A map showing the distribution of selected mines and mineral depsosits for a range of commodities. It also shows the distribution of petroleum resources in basic form. The map base is the georegions of Australia

Geological regions with abnormally high endowment in metals appear to have resulted from the fortunate juxtaposition in space and time of numerous, possibly exceptional, processes. The gold mineral system of the Eastern Goldfields Superterrane (EGST) is an example. In order to understand why this is so, we have taken an approach that considers the mineral system as a series of integrated components known as the Five Questions: viz 1) geodynamics; 2) architecture; 3) sources & reservoirs; 4) drivers & pathways; and, 5) depositional mechanisms. In order to better understand these components and the geological processes that define them, a range of scales needs to be considered. However at each scale the relative benefits of considering any one of the five components varies. Ultimately the aim is to use this scale-integrated process-based understanding for prediction. Understanding why a region is particularly endowed or a deposit so rich is important but only half the question. The other half is where is the next favourable region and/or camp and deposit? In this regard, we 'Answer' the Five Questions.

The purpose of the presentation was to show mineral explorers how recent results from the Gawler Mineral Promotion Project may be used in their quest for blind iron-oxide copper gold (IOCG) deposits in the Gawler Craton. The Gawler Project ran from late 2000 to early 2006. The project developed new methods of exploring prospective basement beneath deep cover.