RB 87/00061 Calca granite deposits - Discovery, geology and production. Calca quarry section - EML 4469, section 46, Hundred Rounsevell. Calca South - EML 5068, section 48, Hundred Wrenfordsley.

Published: 01 Mar 1987 Created: 07 Nov 2024 Revised: 07 Nov 2024

Author: Barnes, L.C.;Young, D.A.

Middle Proterozoic red granite is quarried near Calca, 35 km SE of Streaky Bay on western Eyre Peninsula. It is ideally suited as dimension and monumental stone, being fresh, uniform in texture and colour, and comparatively free of defects. It is hard, durable, takes an excellent polish, and has largely replaced imported red granite. To the end of 1985, 72000 tonnes (2 800 m3) of granite have been produced since 1975. Annual production has increased to 2 000 tonnes / year and is expected to increase further. Indicated recoverable reserves total 19 000 m3 or 50 000 tonnes. Additional reserves are available either by deepening the quarry or extending outside the outcrop to the NE. Calca granite quarry is well sited to minimise environmental impact, and several other environmentally acceptable quarry sites exist. At Calca South deposit, joints and xenoliths are more abundant than at Calca quarry and relatively thick overburden will restrict quarry development.

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About this record

Record No	rb8700061
Topic	Geoscientific Information
Type of Resource	Document
Category Type	Civil Engineering Earth Sciences Engineering Exploration Geochemistry Geochemistry Geology Geomatic Engineering Geophysics Mineral Resource Geology Mineral Resources (Excl. Energy Resources) Mineralogy And Crystallography Petrology Petrophysics Primary Mining And Extraction Of Mineral Resources Quarry And Extractive Resource Geology Resource Geology
Document Type	Departmental Publication - Geological Survey Geoscience Publication
Contributor
Sponsor
Tenement	EML 4469 EML 506 PM 246
Tenement Holder
Operator
Geological Province	Gawler Craton
Mine Name	Calca Granite Quarry;Calca South Granite Quarry
Stratigraphy	Hiltaba Suite
Commodity	granite
Notes	Notes: Includes: - Schultz, P K, 1978. Investigation into the cause of the red colour of Calca granite. Amdel rep GS1491/76(2). Appx D. - Cooper, R; Brown R N; Schultz, P K; 1974. Investigation into the reason for fading of Calca red granite.... Notes: Includes: - Schultz, P K, 1978. Investigation into the cause of the red colour of Calca granite. Amdel rep GS1491/76(2). Appx D. - Cooper, R; Brown R N; Schultz, P K; 1974. Investigation into the reason for fading of Calca red granite. Amdel reps MP676/75, 721/75. Appx E. - Schultz, P K, 1976. An investigation to determine the cause of fading of the Eyre Peninsula rose-red granite. Amdel rep GS1491/76. Appx. E. - Steveson, B G, 1976. "Fading tests on red granites from Eyre Peninsula", from Eyre Peninsula inselberg study. Amdel rep 1124. Appx E. Geographic Locality: Streaky Bay;Colley Hill;Hd Rounsevell, secn 46;Hd Wrensfordsley, secn 48;Hd Witera, secn 19 Doc No: RB 87/00061 More +
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/rb8700061
Citation	Barnes, L.C.;Young, D.A. 1987. RB 87/00061 Calca granite deposits - Discovery, geology and production. Calca quarry section - EML 4469, section 46, Hundred Rounsevell. Calca South - EML 5068, section 48, Hundred Wrenfordsley. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia. https://pid.sarig.sa.gov.au/document/rb8700061

Technical information

Status
Maintenance and Update Frequency
Geographic Reference	GDA2020 (EPSG:7844)
Geo bounding box	{"type":"Polygon","coordinates":[[[134,-33.5],[135,-33.5],[135,-33],[134,-33],[134,-33.5]]]}
Purpose
Lineage