Regional gravel sampling recovered 1 microdiamond from the Walpuppy Dam catchment but follow up sampling gave negative results.

Recent company reconnaissance studies have shown the presence of anomalously high Ta and Nb in sodic granites in the Mount Painter area. Herein a preliminary account is given of the field relationships, petrology, geochemistry, mineral chemistry and...

In a search for possible diamondiferous kimberlite in an area situated 110 km north-west of Woomera, an airborne magnetic and radiometric survey was flown in July 1984 across the entire licence. 4 of 10 magnetic anomalies were selected as low...

Within the retained portion of EL 598, exploration for possible Tertiary alluvial diamonds by conducting gravel sampling in the Koolunga area successfully located kimberlite indicator minerals, which are thought to have been derived from an area known...

Two low priority aeromagnetic anomalies were identified west of Abminga. Sampling at one of the sites for a suite of diamond indicator elements revealed no significant values.

No aeromagnetic targets were located within the surrendered area which was located west to north-west of Hawker. Consequently no field work was undertaken.

Diamond exploration undertaken south of Abminga commenced with a review of MESA's SAEI aeromagnetic data, which delineated 5 promising magnetic targets. Helimag surveying and loam sampling of these anomalies were next performed, the latter to check...

Diamond exploration undertaken south of Abminga comprised an interpretation of SAEI regional aeromagnetic data, plus loam sampling of 11 selected anomalies and a helimag survey over one of them. Heavy liquid separation and optical tests of soil...

No diamond indicator or base metal anomalies were revealed by the geochemistry of stream sediments sampled at 16 sites near Mount Brown.

Diamonds and base and precious metal exploration undertaken north-east of Port Kenny on western Eyre Peninsula comprised loam sampling for kimberlite indicator minerals, RC drilling (7 vertical holes, total 470 m), plus bedrock petrological, heavy...

Ground magnetic surveys were carried out over seven interpreted aeromagnetic anomalies located north-west of Port Augusta. Those with interpreted source depths that were shallow enough to be reached by RC drilling (6 holes, total 570 m) were found to...

Diamond exploration undertaken north-east of Marla, near Vernon Hill, comprised helimag and ground magnetic surveys plus drainage sampling. Magnetic sources were indicated at depths exceeding 200 m. One magnetic target was tested by a 117 m deep RC...

No diamonds or kimberlite indicator minerals were found in loam and subsurface samples collected from an area of strongly fractured volcanic rocks in the north-eastern Flinders Ranges, abutting the Lake Frome Plains south-east of Arkaroola. The basalt...

One dipolar anomaly of possible kimberlitic origin and 12 other magnetic features were recognised following processing of SAEI aeromagnetic data from an area 50 km west of Oodnadatta.

A manganese-rich Adelaidean stratigraphic unit outcropping along the western flank of the Mount Remarkable Range, which returned 1.8% Co, 1.5% Cu and 1.0% Zn in a grab sample from the Willowie Cobalt prospect, warrants further work because it is...

Diamond exploration undertaken in the Woomera area comprised an aeromagnetic / radiometric survey and gravel sampling. With the exception of three weak anomalies, all aeromagnetic features on checking were of cultural origin. A significant potassium...

Several potential buried diatreme targets, plus regional basement potential for northeast-trending Proterozoic Cu-Au and Ni-Cu mineralisation, were identified within the Nullarbor Regional Reserve and Yalata Aboriginal Lands on western Eyre Peninsula....

An aeromagnetic anomaly near Gidyea Bore, north of Abminga, was caused by cultural features.

No aeromagnetic anomalies deemed worthy of ground exploration follow-up, as indicating possible buried kimberlites, were located by an interpretation of SAEI data derived from an area 80 km west of Abminga Siding.

Exploration as part of a continuing regional search for possible diamondiferous kimberlites was undertaken 70 km west-northwest of Roxby Downs. Extensive sampling of current drainage lines in interdune swales, plus loam sampling in other...