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Investigations in the Myponga Basin have shown that there is no direct evidence for groundwater depletion. Currently there are 45 irrigation wells pumping from an unconfined/confined limestone aquifer. The potentiometric surface drops 5-6 metres...

The major units present are Middle Proterozoic poorly foliated granite, suite of acid volcanics and alkali granite. Dyke rocks include dolerite, leucogranite and acid porphyry, overlain by Pleistocene calcarenites of the Bridgewater Formation and...

The CHILDARA 1:250 000 geological map covers part of the Precambrian Gawler Craton in north-western Eyre Peninsula, much of which is blanketed by Cainozoic and Mesozoic deposits. The oldest rocks are a complex assemblage of granitic gneisses and...

In South Australia the Gawler Province displays a history of early Proterozoic orogenic evolution and transitional tectonism leading to deposition of the Gawler Range Volcanics (ca 1500 Ma) on a relatively stable platform. A fragmentary record of...

Adelaidean (late Precambrian) sequences in the Kimberley Region, Western Australia, contain undisputed evidence of glaciation. In the East and West Kimberleys, only a single major glacial epoch is represented, but in the MOUNT RAMSAY area, there are...

The crystalline basement of COOBER PEDY comprises portion of the northern part of the Gawler Craton. Outcrop is scattered and is generally intensely weathered. Sediments, including sandstone, arkose and banded iron formation, were deposited on an...

Geochronological analyses of samples of the Willochra Subgroup and the Tapley Hill Formation, which unconformably overlie the Beda Volcanics, give ages of 724±40 Ma and 750±53 Ma respectively, thereby indicating that the original age determination of...

The Adelaidean is the youngest Precambrian subdivision of the Proterozoic in Australia. The Adelaide Geosyncline is its stratotype basin, since it contains the thickest sequences and the most complete record of late Proterozoic sedimentation in...

Major rock units on Cap Island are granitic gneisses and foliated granite of assumed Archaean to Early Proterozoic age (Sleaford Complex), and aeolianites and calcretes of Middle Pleistocene Bridgewater Formation. On Waldegrave Islands, similar...

Wilkinson 1 stratigraphic well was drilled by the SA Department of Mines and Energy in mid-1978, about 250 km south-west of Coober Pedy, in the Tallaringa Trough. Here a thick section of Cambrian claystones, limestones and evaporites, at least 594 m...

This draft paper presents field observations which can be used to qualify two Rb/Sr geochronological results obtained from biotites sampled in sheared migmatitic gneiss of the western Yilgarn Block in WA. The site visited lies in a quarry near...

This excursion guide is a refinement of a 6-day excursion led by Parker, Fanning and Flint in 1980 at the height of economic interest in the basement geology of the Gawler Craton. The interest in those days was for Alligator River - style uranium...

Amino acid racemization data provide the basis for a predictive model for relative dating of late Quaternary coastal sequences. The extent of racemization on Last Interglacial fossils represents a linear function of latitude in southern Australia....

Skeleton 2 penetrated sediments of the eastern Lake Eyre Basin, the Frome Embayment, and granitic basement of the Mount Painter Ridge. The hole records the southernmost known occurrence of Cadna-owie Formation in the Frome Embayment. Unexpectedly,...

Marginal marine strata of last interglacial age occur in a range of morphostratigraphic settings around the Australian coastline. Uranium-series ages for corals and molluscs are generally in accord with the accepted age for oxygen isotope substage 5e...

This report was prepared as a summary of all open file mineral exploration data from the KINGOONYA 1:250000 mapsheet area that are held in the SADME records management Envelope system. The aim of the holdings review was to describe past exploration,...

A paleomagnetic study of the mid- to Late Cambrian sedimentary rocks in the northern Delamerian fold belt reveals an overprint acquired after regional folding during the Cambro-Ordovician. The paleopole position, based on data from eight sites, is...

Two groups of samples from Eyre Peninsula have been analysed. The Elliston samples are correlative with the Polda Formation, probably in the latest Middle Jurassic. The younger Middle Eocene E04-1 sample indicates the presence of Pidinga Formation,...

Six sidewall core samples from the petroleum exploration drillhole McNicol 1 in the onshore part of the Tertiary Gambier Basin have been analysed using palynological techniques. The oldest sample (from 756 m depth KB) has been dated as Maastrichtian...