The investigation which is the subject of this report was carried out in response to a request from Mr. E.L. Mitton, Accountant, on behalf of Millers Lime Ltd. The property is owned by J.Hallett & Son Ltd., freehold, with mineral rights alienated...

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The deposit is worked for filling sand, but is suitable for replenishment of beaches, and with beneficiation, for glass and foundry. Reserves, based on 110 auger holes, are 835 000 tonnes (indicated) and 270 000 tonnes (inferred).

Cores taken from Barker Inlet and previous subsurface information, are used to interpret the shallow subsurface stratigraphy. Significant Holocene accumulation has taken place at Outer Harbour, Torrens Island, and the Saint Kilda intertidal flats....

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...

Likely excavation conditions during the proposed deepening of the boat channel at St. Kilda were investigated by drilling and seismic refraction surveys. Results showed 2 to 3 m of St. Kilda Formation (loose shelly sand) overlying up to 0.2 m of...

Series of beach ridges are of Holocene age, ranging in age from 6600 years to present and composed predominantly of shell fragments, average 78% calcium carbonate. Total recorded production from the deposits is 1.16 million tonnes. Auger drilling of...

Vibrocores from the samphire marshes south of the North Arm of the Port River are used to interpret the shallow subsurface stratigraphy. 2 marine sequences of Holocene and Late Pleistocene age, consist of saturated, unconsolidated and largely...

Mollusca recovered by Vibrocore drilling in Holocene sediments of the Saint Kilda Formation in 9 shallow bays on the far west coast are identified and the extent to which they reflect the tidal to supratidal environments in which they were deposited...

Investigation of cause of mangrove dieback, which is probably due to highly saline ground water.

A shallow refraction seismic survey was conducted along the causeway adjacent to the boat channel at St. Kilda, during its exposure at low tide. The aim of the survey was to determine the thickness of the St. Kilda Formation consisting of shelly sand,...

A seismic refraction survey at Redcliff Point on Spencer Gulf has confirmed the existence of a trough up to 450 m deep and 3.5 km wide, oriented north-south beneath the western portion of the promontory. Two internal refracting horizons have been...

Metropolitan Adelaide is founded on a wide variety of soils that overlie sediments and rocks. Some of the soils and sediments react to seasonal and human-induced changes in water content with marked changes in volume. The black earths and...

Drill core from samphire and mangrove marshes north of Gillman - Wingfield are used to interpret the shallow sub-surface stratigraphy of the region. A Holocene marine sequence up to 8 metres thick overlies Late Pleistocene alluvial (Pooraka Formation)...

The Robe-Naracoorte coastal plain provides a unique record of Quaternary sea level changes through the preservation of a large number of shoreline sequences corresponding to repetitive sea level high-stands. This record has resulted from a combination...

A series of arcuate beach ridges, lie within 1 km of the coastline between Port Germein and Tickera. These Holocene ridges range in age from 4400 years to present and are composed of shell fragments. Sporadic production from Hundreds Pirie and...

Shallow penetration, high resolution seismic profiling, with simultaneous sea floor coring found large areas of sea floor to be barren of unconsolidated Holocene sediment, or to be unsuitable for beach replenishment. Four prospects are identified...

About 87 percent of Port Lincoln's construction sand is obtained from the coastal zone about 20 km north of the city. The remainder, from Strawberry Hill, contains about 10% fines and is blended with clean sand from Louth Bay to meet specifications....

Significant anthropogenic land subsidence within the Port Adelaide estuary of up to 0.7 metres is inferred from the Holocene stratigraphy and associated radiocarbon dates on materials that act as palaeo-sea level indicators. Principal contributing...