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RB 86/00069 Precious opal and the weathered profile at Coober Pedy.
Published: 01 Nov 1986 Created: 07 Nov 2024 Revised: 07 Nov 2024
Author: Robertson, R.S.;Scott, D.C.

The Coober Pedy Precious Stones Field is the largest producer of precious opal in the world. The opal is the product of weathering processes and is localised within the weathered profile. It occurs in early Cretaceous marine claystone of the...

The Coober Pedy Precious Stones Field is the largest producer of precious opal in the world. The opal is the product of weathering processes and is localised within the weathered profile. It occurs in early Cretaceous marine claystone of the Bulldog Shale (Marree Subgroup) deposited on the western margin of the Great Australian (Eromanga) Basin, and is overlain by Pliocene (?) - Quaternary Russo Beds. The opalfields extend along a 40 - 50 metres high east facing escarpment and gently west sloping tableland called the Stuart Range.

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About this record

Record No rb8600069
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - Geological Survey Geoscience Publication
Contributor
Sponsor
Tenement
Tenement Holder
Operator
Geological Province Eromanga Basin
Mine Name Coober Pedy Opal Field
Stratigraphy
Commodity
Notes 
Notes: Paper presented to the Eighth Australian Geological Convention, Flinders University, Adelaide, February 16-21, 1986. Extended abstract and text accompanying 40 slides.
Geographic Locality: Coober Pedy
Doc No: RB 86/00069
Notes: Paper presented to the Eighth Australian Geological Convention, Flinders University, Adelaide, February 16-21, 1986. Extended abstract and text accompanying 40 slides.
Geographic Locality: Coober Pedy
Doc No: RB 86/00069
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/rb8600069
Citation Robertson, R.S.;Scott, D.C. 1986. RB 86/00069 Precious opal and the weathered profile at Coober Pedy. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
https://pid.sarig.sa.gov.au/document/rb8600069

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[134.5,-29.5],[135.5,-29.5],[135.5,-28.5],[134.5,-28.5],[134.5,-29.5]]]}
Purpose 

                    
                    

                    
                  		
                

              
                
                

                  
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