The purpose of the work described was to compare and contrast the petrography, accessory minerals, and absolute ages of 25 granitic and allied rock samples collected from widely scattered localities in South Australia. The processes that are...

In the course of the programme of sampling of rocks for age determination on Northern Eyre Peninsula, an opportunity was taken to check certain stratigraphic relationships, with particular reference to the age of the Tent Hill Formation and Corunna...

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Examines numerous outcrops illustrating the geological and tectonic evolution of the region. This excursion is based on the EPIC tour of the Geological Society of Australia 8th Australian Geological Convention excursion series in February 1986. This...

Exploration for Mount Isa style, Fe-oxide associated Cu-Au mineralisation has targeted Whyalla Group metasediments and associated Hiltaba Suite granitic intrusions within a 110 km long x 15 km wide, north - south aligned corridor situated west of...

This report deals comprehensively with the physiography, prospect geology, and ore genesis, and includes an assessment of the iron ore reserves and other mineral resources of an area which has been almost the sole source of the iron ore used in...

Stratabound, metasedimentary iron ore was the principal target of exploration undertaken by BHP over a large area surrounding the Moonabie Range that extends along strike and borders the north-western side of Spencer Gulf. Base and precious metals...

Returns from copper and gold won from the Moonta-Wallaroo district supported the South Australian economy from 1860-1920. During those 60 years some 355,000 t of copper and 2 t of gold were extracted from the twin mining fields of Wallaroo and Moonta:...

This report presents the results of a Terranechron [registered brand name for this proprietary technique] study of detrital zircons from modern stream sediments of the Gawler Craton. The Terranechron approach involves obtaining uranium - lead decay...

Two basin systems in north-eastern Eyre Peninsula comprising Palaeoproterozoic metasedimentary and volcanic successions are described in terms of rock age and provenance. The older system comprises the Myola Volcanics and the Broadview Schist, which...

Exploration in the Moonabie area, located 40 km south-west of Whyalla, was aimed at possible concealed epithermal or Alligator Rivers (NT) type stratabound uranium occurrences within the Lower Proterozoic metasedimentary/metavolcanic sequence....

Infill aeromagnetic and ground gravity surveys undertaken approximately 50 km west of Port Augusta were followed by an IP survey and lag sampling. Anomalous Cu and Au values were returned, but only a minimal IP response was recorded. Regolith mapping...

Geochronology enables us to determine the age of rocks and minerals. The variety of isotopic geochronological techniques give complementary information on, for example, the timing of igneous or metamorphic crystallisation, as is often the case for the...

This work was undertaken to try to determine the age relationships between the various formations in the Moonabie Range, namely, the Moonabie Grit, the Moonabie Porphyry and the Corunna Conglomerate. The stratigraphic relationships that were observed...

An investigation of historic shallow workings on secondary copper mineralisation associated with a narrow fracture zone in the Moonabie Porphyry comprised 1:1000 scale surface mapping, geochemical sampling, petrographic studies and an IP survey. Minor...

Ground scintillometer work carried out by BHP over its SMLs in the Middleback Range area has been shown not to be an effective reconnaissance tool for finding uranium anomalies, but it does have demonstrated value for identifying sources of...

This guidebook is divided into two parts; a brief resume of the regional geology of the southern Gawler Craton; and descriptions for each of the excursion stops. The Gawler Craton is a large region of continental crust which was cratonized ca 1400...

Geochemical and isotopic data from mantle-derived mafic rocks provide important constraints on our understanding of the composition and evolution of the lithosphere through time. Since the lithosphere is sensitive to tectonic processes such as...