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In September 1964 and June 1965 an exploratory survey found good hydrological – geophysical correlation for the sedimentary formations in Southern Yorke Peninsula. Further work is warranted to delimit the boundaries of the aquifers and the extent of...

3 holes were drilled to 5 metres.

Regressive intertidal sequences, with well developed zonation of flora and fauna, occur extensively around the margins of the 2 major SA gulfs and within small embayments along the exposed coastline of Eyre Peninsula. This paper summarises and...

Gypsum reserves in Snow Lake and Spider Lake within Innes National Park on southern Yorke Peninsula have been delineated by core sampling and auger drilling. Snow Lake contains indicated geological reserves of 2.8 million tonnes of gypsum to an...

Discharge tests carried out on the caisson show that the supply is restricted by difficult entry conditions which are enhanced by the low water table. The transmissivity of the aeolianite aquifer is estimated at 1 000 m"/day/m. A pumping rate of 700 m...

Naracoorte town water supply can be increased by drilling additional production wells to the confined Knight Group sand aquifer which occurs at a depth of about 150 m below the town. D-rawdown interference from nearby production wells is expected to...

69 auger holes (303 metres) have shown deposit (2.9 km long, 300 x 400 metres wide and 2 x 10 metres thick) of coarse sand in Pleistocene Bridgewater Formation, largely on State Forest Reserve. Of existing pits, Proviss pit was closed and Gartners pit...

4 deposits with recorded production from Tertiary filter sand and gravel at Rowland Flat, Loxton and Berri and Quaternary sand at Murbko are described. Quaternary sand at Naracoorte is potential site. Sand is used for filtration of metropolitan water...

Based on 112 drill holes in 1959 and 32 in 1969, proved reserves were recalculated as 44 million tonnes in Lake Purdilla, 1 metre or more thick at average grade of 88.4% gypsum and 6 million tonnes in Lake Toorna, 1 metre or more thick at average...

Potable (over 1000 mg/l) groundwater occurs in 5 lenses. Annual yield totals 14 000 to 19 000 ML. Between 400 and 2 500 ML / year (seasonally dependent) is abstracted for reticulation. Diffuse, unquantified extraction for stock and domestic purposes...

Geophysical surveys at the City Council Depot site, delineated the extent of large depression, used as rubbish dump. Abrupt lateral terminations of volcanic ash and tuff sequence were correlated with the boundary of the depression. No solution...

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...

The Carribie Basin is in the western portion of Yorke Peninsula. The aquifer is unconfined Bridgewater Formation, recharged by direct infiltration of rainfall. Results of the interpretation of previous geophysical surveys, pump testing analysis and...

Major units present are 2 suites of Middle Proterozoic granite and Middle Pleistocene calcarenite. The older granite suite has an age of about 1585 Ma, while the other suite had intrusive age of 1457 +- 25 Ma. The granites are enriched in K2O and SiO2.

Drilling and testing of well HDO22 to 26 metres has confirmed relationship between high transmissivity and low hydraulic gradient within the basin.

7 drill holes (105 metres) and 2 well discharge tests were carried out.

Resistivity investigations were carried out on Wardang Island in an attempt to determine drilling sites favourable for fresh underground water. The thickness of the Bridgewater Formation (aeolianite) and basement elevations were mapped and contoured....

A monitoring programme has been established, in a paddock immediately north of the factory, to ascertain the effect of sprinkler disposal of partly treated factory effluent on soil, herbage and groundwater.composition. The aim of the investigation is...

Naracoorte Corporation area straddles two northwesterly trending dune ridges and their corresponding flats. Cemented limestones of the Bridgewater Formation and Gambier Limestone, occasionally mantled by windblown sands, form the two ridges; younger...