Two diamond drillholes were completed over the period January to July 1963 in the initial stages of investigation of the Dawesley aeromagnetic anomaly, aiming mainly to test two IP anomalies 1 mile apart that had been detected on SADM grid line 1000...

The sample received was a banded quartz-iron oxide ore containing 43.1% acid-soluble iron. The main iron oxide mineral present was martitised magnetite, the effective grainsize of which ranged from 0.01 x 0.02 mm to 1.23 x 1.63 mm, the bulk of the...

A gravity trough extending southerly from Lake Torrens suggests a possible subsurface escape route for brines from Lake Torrens. It is recommended that this gravity trough be drilled, however this recommendation may be modified by later seismic...

At the request of the S.A. Gas Co., a resistivity survey was carried out in an area suggested by the Gas Co. to test the ground for its acceptibility for installing a Cathodic Protection System. This system is to be used to minimise electrolytic...

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Geological mapping, on a scale of 1" represents 440 feet and sampling of Lower Marinoan and Upper Sturtian sediments was carried out as a result of anomalous aeromagnetic values occurring within the sections listed above. From surface investigations a...

A resistivity and I.P. Survey was carried out over the southern part of Spilsby Island, to test for molybdenite mineralisation in the granites. Inconclusive results were obtained, as the anomalies mapped could have been caused by the contacts of the...

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Ground geophysics suggests that the major structure is an overturned anticline or syncline, closed to the east-northeast, and with the axial plane striking east-northeast - west-southwest and dipping steeply to the north. High magnetic and residual...

A series of resistivity tests has been carried out in the Polda Basin in an attempt to determine whether it will be possible to map the sub surface aquifer by resistivity methods. Results indicate that this should be possible using logged boreholes...

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A resistivity and an Induced Polarization (I.P.) traverse along with an expanding Wenner spread was completed over the Arkose member which revealed an anomalous lead content from samples taken by the Regional Surveys Section. An I.P. anomaly was found...

A start has been made to an IP search for copper mineralisation in an area immediately surrounding Kapunda. Severe electrical noise conditions were encountered, which may result in much of the scheduled area of interest being abandoned...

A re-assessment has been made of IP results over the main grid area, and a redistribution of anomalies into a more comprehensive pattern has been carried out. Three new drill holes are suggested with a fourth proposed previously.

A potential iron ore deposit has been investigated in the upper horizon of jaspilite beds of the Hutchison Group, where a drag fold has caused a thickening of the jaspilite beds. Surface samples average 42.2% acid soluble iron. The deposit has a...

Aeromagnetic anomalies mapped at Mount Woods and to the south were investigated for their iron ore potential by conducting a low-level aeromagnetic survey and by performing a geological reconnaissance and acquiring ground magnetic and gravity data....

Detailed geological mapping has identified a metamorphosed iron formation though to be equivalent to the Middleback Group of Eyre Peninsula. Four diamond drillholes have given complete intersections of the Mount Christie, Fingerpost Hill and George...

The project followed a logical appraisal, from conducting high level aeromagnetics through low level aeromagnetics, ground geophysics, drilling and shaft sinking, to metallurgical testing. All geophysical methods used divide the anomaly into three...

The area previously surveyed by SADM in the “Racecourse” area near Burra, using a 400 foot dipole-dipole configured induced polarisation spread, was resurveyed using a 200 foot dipole-dipole IP sensor configuration. This was done to obtain closer...

10 miles north-west of Tumby Bay, a syncline of jaspilite, with a shallow southerly plunge, could contain 8-13 million tons of magnetic iron ore per vertical 100 feet. Unweathered jaspilite with magnetite occurs. Assessment of the potential of the...