21 specimens of volcanics and felsic gneisses are heterogeneous in both original lithology and the extent of metamorphic and metasomatic alteration. Strong granitic metasomatism may indicate concealed granitoid plutons. Continuation of andesitic...

Background The establishment of a potassium-argon dating laboratory at Amdel was initiated in 1969, with the South Australian Department of Mines providing financial assistance towards the purchase of equipment and continuing operational support in...

For a project to determine the base metal potential of known copper-mineralised igneous rocks which outcrop in an area located approximately 59 km south-west of Olary, the South Australian Government has completed detailed mapping, geochemical...

Interprets Bridge Oil / Target Exploration seismic data and shipborne magnetic data.

In conjunction with an inter departmental committee and representatives, from local government, fifteen proposed solid waste disposal sites were investigated in the vicinity of Mt. Gambier. After subjecting each site to relevant pollution potential...

Small inlier of lower Ordovician rhyodacite in Baker Range in the South-East is an important source of road sealing aggregate. 750 000 tonnes of rhyodacite are inferred to underlie 220 000 tonnes of overburden. Diamond and rotary drilling is recommended.

Covers publications from 1960 to 1984. Main source was Bibliography and index of geology and AESIS Vax computer. INMAGIC software was used for compilation and printing. Main entries are in alphabetical order of first named author, with author and...

Known and inferred geological characteristics and age relationships of the rocks infilling the wholly deeply buried Palaeozoic Warburton Basin are described. Depositional, structural and alteration aspects of the rocks are also mentioned, as they may...

42 rock specimens collected from the open cut at Burra were examined in order to comment on a report received from a consulting organisation. Despite a high degree of alteration evident in the samples, it was possible to distinguish microscopically,...

Rocks examined in thin section are significant in indicating possible nature of concealed basement under the Eucla Basin, as well as in dating events in Archaean and Proterozoic.

Rocks are mainly from the Middle Proterozoic Gawler Range Volcanics. One may be from the Tarcoola Beds and one, not identified as it is too strongly altered by contact metamorphism, is of economic interest because of its highly mafic character.

Rocks from Saint Francis Island include trachyte, trachyandesite and rhyolite. Drill core from Dampier DDH1 includes 2 types of dolerite, and from Afmeco KGB3 fresh dolerite or basalt. Other specimens examined include basalt and gneiss from the...

Depot Creek is one of few localities with sedimentary contact between the Burra and Callanna Groups. The Depot Creek 1 drillhole [TD 874.35 m] provided subsurface control for making an interpretation of the structure of the eastern margin of the...

Narrow granodiorite dykes at Point Brown exhibit conspicuous banded margins and is cyclic showing systematic variation in mineralogy, geochemistry and grain size. These phenocryst poor, biotite rich layers originated by dynamic crystal sorting during...

Contains 3 half day excursion guides. The Quaternary volcanic province of SA occupies a small portion of the Lower Southeast, and constitutes a western extension to the Quaternary Newer Volcanics of central and western Victoria. This extension...

The SADM stratigraphic hole Roopena DDH1 was originally drilled near Roopena homestead in 1967 to TD 155.61 m, and was deepened to TD 249.59 m by SADME in 1978 (as DDH1a) to obtain relationships between the Roopena Volcanics and older units. At...

Porphyritic rhyolite adjacent to the Stuart Highway, 21 km east of Kingoonya was identified as a potential sealing aggregate deposit. It was tested by 3 holes totalling 26.3 metres. Large reserves (100 000 m3) below 30 cm of overburden were proved.

Applicability of radiometrics and the portable gamma ray spectrometer was tested over parts of the southern Gawler Craton. Use of total count and separate counts for potassium, uranium and thorium helped to distinguish lithologies e.g. to locate...

Volcanism associated with the Middle Proterozoic Gawler Range acid volcano-plutonic province was initiated in the Kokatha area by the construction on Archaean basement of a large stratovolcano composed mainly of tholeiitic basalt and potassic basaltic...

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