Calca [part of CML's Poochera Project]. First partial surrender report, for the period 12/7/1993 to 11/7/1997.

Published: 08 Aug 1997 Created: 28 Oct 2024 Revised: 07 Dec 2024

Author: Barnes, L.

Exploration for kaolin, gold and base metals in the Colley Hill - Witera area, centred 40 km south-east of Streaky Bay, comprised aircore drilling (23 holes, total 379 m) and calcrete geochemical sampling on a regional 1 km x 1 km grid. Despite the widespread and promising clay mineralisation in the area, kaolin obtained from composited drill cuttings samples had poor raw and fired whiteness, due to intercalated fine quartz and disseminated black iron oxide and biotite. Only four calcrete samples assayed >3 ppb Au.

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About this record

Record No	mesac14539
Topic	Geoscientific Information
Type of Resource	Document
Category Type	Basement Geology Civil Engineering Drilling Engineering Earth Sciences Engineering Exploration Geochemistry Geochemistry Geology Geomatic Engineering Geophysics Information And Computing Sciences Mineral Exploration Mineral Resource Geology Mineralogy And Crystallography Petrology Physical Geography Policy And Administration Quarry And Extractive Resource Geology Regional Geology Resource Geology Resources Engineering Soil Chemistry Soil Science Stratigraphy Surface Geology Surface Processes
Document Type	Mineral Company Report - Mineral Exploration
Contributor	South Australia. Department of Mines and Energy;University of South Australia;Commonwealth Scientific and Industrial Research Organization;Analabs Ltd
Sponsor	Commercial Minerals Ltd
Tenement	EL 1843
Tenement Holder	Commercial Minerals Ltd
Operator
Geological Province	Gawler Craton
Mine Name
Stratigraphy	Calca Granite Hiltaba Suite
Commodity	Critical minerals gold halloysite industrial material kaolin precious metal
Notes	Geographic Locality: North-western Eyre Peninsula;Streaky Bay;Poochera;Port Kenny;Colley Hill;Witera Farm;Mount Cooper Doc No: Env 09199 Drillhole: CO1 - CO23;(166547 - 166564) Geographic Locality: North-western Eyre Peninsula;Streaky Bay;Poochera;Port Kenny;Colley Hill;Witera Farm;Mount Cooper Doc No: Env 09199 Drillhole: CO1 - CO23;(166547 - 166564)
Language	English
Metadata Standard	ISO 19115-3

Citations

Use constraints	License
License	Creative Commons Attribution 4.0
Persistent identifier	https://pid.sarig.sa.gov.au/document/mesac14539
Citation	Barnes, L. 1997. Calca [part of CML's Poochera Project]. First partial surrender report, for the period 12/7/1993 to 11/7/1997. Mineral Company Report - Mineral Exploration https://pid.sarig.sa.gov.au/document/mesac14539

Technical information

Status
Maintenance and Update Frequency
Geographic Reference	GDA2020 (EPSG:7844)
Geo bounding box	{"type":"Polygon","coordinates":[[[134.36806,-33.131897],[134.75139,-33.131897],[134.75139,-32.965225],[134.36806,-32.965225],[134.36806,-33.131897]]]}
Purpose
Lineage