A high resolution seismic reflection survey was completed by SADME on the SW margin of the Great Artesian Basin near Lake Eyre South. 38.9 line km of data was recorded from 17.9.85 to 14.12.85. Geophysical Service Inc. (Adelaide) were contracted for...

Results of mapping, particularly basal Mesozoic sandstone unit, description of sections and borehole study of cuttings from 14 holes.

5 spore / pollen zones and 3 dinoflagellate zones are recognised in Toodla 1, ranging from late Jurassic to Late Albian. The Mesozoic units penetrated by this well on palynological evidence are younger than traditionally recognised in other parts of...

Brief summary progress report.

This report virtually completes a systematic survey of mound springs around the south-western edge of the Great Artesian Basin in South Australia. There are as yet about 20 springs left unsampled, mostly on BILLAKALINA, in the Francis Swamp and...

During 1977-78, 32 fossiliferous Lower Devonian quartzite boulders were discovered entrained within Mesozoic sediments along the south-western margin of the Great Australian Basin. Previously only 2 specimens of such rocks had been discovered in South...

Two production water wells were drilled during March-May, 1974. The wells are located about 1 km apart within the Coober Pedy town area, and both draw upon the Cadna-Owie Formation. Salinity is uniformly high in both holes, at 16,600 - 16,700 mg/l....

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,...

Extensive field geological mapping, augmented by petrological and geochemical studies, reinterpretation of company drilling and water-bore logs and a nine-hole drilling programme has detailed the geology of the KINGOONYA area. The stratigraphy spans...

The sample from A68 E427190/53J N7068100 is Early Cretaceous (uppermost Barremian) in age and correlative with the Cadna-owie Formation. Open marine conditions are indicated, this being typical of the upper part of the formation in the southwestern...

Three grab samples of calcareous concretions were assigned an Early Aptian age.

Ten outcrop samples, including carbonaceous muds, siltstone and limestone concretions, were collected as part of a study of Early Cretaceous palaeoclimate. The samples were all of Bulldog Shale from a shallow water marine environment, except for...

Data collected from 116 flowing and 24 non-flowing wells included shut in pressure, temperature, flow rate, pH, headworks condition and full chemical analyses of water samples. An observation network is to monitor controlled flowing wells every 2 years.

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Samples of calcareous concretions, mudstone, siltstone and sandstone were assigned an Aptian age.

All mineable opal has been found in Bulldog Shale, mostly within a bleached profile at the contact of sandy claystone (Kopi) and underlying, grey-brown clay (Mud) near the base. Normally this interface (Level) is marked by a pebble or conglomerate...

Eighteen samples were collected from outcrop along the north bank of the Neales River in the Eromanga Basin, as part of the mapping programme for the WARRINA 1:250 000 map sheet. Where palynological dating was possible the sediments were found to...

3 diamond and 15 rotary-percussion holes were drilled in 1987 by CRA within EL 1330 on the southern part of the Field (PSF), this licence having been granted to the company for the exploration of strata below 50 metres depth in the subsurface. The...

SADME stratigraphic drillhole Ruby Hill 1 was sited 10.4 km east of William Creek, and was designed to penetrate Early Cretaceous rocks of the Eromanga Basin and to sample pre-Mesozoic basement. It intersected 191 m of the Eromanga Basin sedimentary...

Palynological evidence indicates that all 13 submitted drill core sedimentary rock samples, excepting one (taken at 138.2 metres depth in hole A68-1), are late Aptian to earliest Albian in age. The sediments were deposited in environments ranging...