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RB 77/00074 Seismic refraction investigations in the Polda Coalfield.
A seismic cross-section along the Lock-Tuckey portion of the Polda Basin shows that bedrock is between 600 m and 900 m deep. Bedrock probably, consists of either Mt. Wedge type grits and con-glomerates or weathered crystalline basement. The basin...-
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Published: 01 Jan 1977
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RB 80/00056 Report on the relinquished areas of EL 280, outside the area of EL 434.
Report summarises drilling and geology. Regional drilling programme included rotary drilling near Lock coal deposit. Only P21 intersected coal.-
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Published: 01 Aug 1980
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RB 80/00145 Mucka Cudla no. 1 well completion report.
Based on results of SADM seismic refraction surveys Mucka Culda no. 1, 17 km NE of Colton, was drilled on shotpoint 6W of the Mount Wedge seismic traverse, for coal potential of the Polda Basin. Lignite was found in the thick Tertiary section. Absence...-
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Published: 01 Jan 1980
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RB 79/00093 Lock Coalfield hydrogeological study - Progress report no. 1 (Volume 1 of 2).
Hydrogeological investigations undertaken by SADME at the Lock Coalfield have shown that significant aquifer systems occur above and beneath the coal, and that the coal itself has negligible permeability. Permeability of both aquifers is low,...-
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Published: 01 Jan 1979
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RB 77/00057 Experimental resistivity survey over the Lock coal prospect, Eyre Peninsula.
An experimental survey over the Lock coal prospect has demonstrated that vertical electrical soundings can be used to indicate the depth of a resistivity boundary which corresponds to the bottom of the main coal horizon. The actual presence or...-
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Published: 01 Jan 1979
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Data release - as updated : Lock. Annual reports plus final report to licence's full surrender, for the period 16/12/2008 to 13/4/2017.
No field work was done during all of licence Years 6 to 13, until the tenement was eventually surrendered. An office -based assessment was performed on ground geophysical data collected during the earliest years of tenure, allowing some new targets to...-
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Published: 28 Mar 1917
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Data release - as updated [made at SA Director of Mines’ discretion] : Lock. Annual and combined annual reports for the period 22/4/2010 to 21/4/2014.
An exploration licence comprising three separate sub-blocks has been taken up with the primary goal of assessing the potential for additional coal resources to occur in proximity to the Lock coal deposit. During licence Year 1, the licensee sourced...-
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Published: 22 Mar 1913
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Lock Coal Deposit. Progress reports and final report to licence full surrender, for the period 24/1/1977 to 20/10/1978.
The 1976-1978 drilling programme carried out in the Lock district was designed to establish the quantity, quality and extent of the known brown coal occurrence there. Exploration Licence (EL) 280, taken out by the Director-General, SA Department of...-
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Data release - as updated [made at SA Director of Mines' discretion] : Lock [Coalfield]. Annual reports and technical reports for the period 24/5/1993 to 26/10/2014.
The Lock Jurassic sub-bituminous coal deposit was discovered by the South Australian Department of Mines and Energy in 1977. The Lock Coal deposit lies within the eastern portion of the Polda Basin on the Eyre Peninsula. The deposit covers an area of...-
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Published: 01 Nov 1913
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McLachlan, Tuckey, Sheringa and Lock. Joint progress reports and joint final report to licences' joint expiry/full surrender, for the period 8/7/1980 to 17/4/1985.
In mid-1980, CRA Exploration took out four mineral tenements in the Polda Basin area of western Eyre Peninsula to explore for Tertiary and Jurassic lignites and also for possible Permian sub-bituminous coal. Interest in this area had been generated by...-
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Published: 25 Mar 1985
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Combined report on the full surrender of Sheringa EL 688 and partial surrenders for McLachlan EL 670 and Tuckey EL 687, Polda Basin, South Australia, 17th May 1982.
Relinquishment of parts of the licenses held in the Lock, Tuckey and Tooligie area was made following drilling (31 holes totalling 2 960 metres) to investigate lignite occurrence in the Polda Basin. Possible reserves of Jurassic and Eocene coals in...-
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Published: 01 Jan 1982
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McLachlan. Progress and final report to licence surrender for the period 7/9/82 to 6/3/83.
The search for stratiform / stratabound base metals of the Broken Hill / Aggeneys type was extended from Warramboo to the McLachlan area because of similar magnetic features. 11 RAB holes (total 664 m) drilled over magnetic and geochemical anomalies...-
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Published: 09 May 1983
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Wombat Flat. Progress reports and final report to licence full surrender, for the period 19/2/1980 to July 1982.
The subject area, which covered the western onshore portion of the Polda Trough, was initially acquired to explore buried probable Carpentarian sediments for base metals and uranium, but a subsequent review of available information suggested that...-
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RB 90/00001 Explanatory Notes for the KIMBA 1:250 000 geological map.
The KIMBA 1:250 000 geological map sheet (hereafter referred to as KIMBA) lies in central Eyre Peninsula, extending between latitudes 33° to 34° S and longitudes 135° to 136°30'E (Fig 1). The principal towns are Kimba and Cleve, with smaller towns at...-
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Published: 01 Dec 1989
