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RB 84/00047 Origin and formation of matrix opal from Andamooka, South Australia.
Published: 01 Jul 1984 Created: 06 Nov 2024 Revised: 06 Nov 2024
Author: Keeling, J.L.;Farrand, M.G.

Two specimens were probably formed by partial dissolution of Andamooka Limestone erratics within Cretaceous marine sandy clay, followed by replacement of the remaining carbonate rock by fine grained silica together with growth and deposition of...

Two specimens were probably formed by partial dissolution of Andamooka Limestone erratics within Cretaceous marine sandy clay, followed by replacement of the remaining carbonate rock by fine grained silica together with growth and deposition of silica spheres in existing solution cavities.

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About this record

Record No rb8400047
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 Andamooka Opal Field
Stratigraphy Marree Subgroup
Commodity gemstone
Notes 
Notes: Published in Quarterly Geological Notes, 90, 1984.
Geographic Locality: Andamooka
Doc No: RB 84/00047
Notes: Published in Quarterly Geological Notes, 90, 1984.
Geographic Locality: Andamooka
Doc No: RB 84/00047
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/rb8400047
Citation Keeling, J.L.;Farrand, M.G. 1984. RB 84/00047 Origin and formation of matrix opal from Andamooka, South Australia. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
https://pid.sarig.sa.gov.au/document/rb8400047

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[137,-30.5],[137.5,-30.5],[137.5,-30],[137,-30],[137,-30.5]]]}
Purpose 

                    
                    

                    
                  		
                

              
                
                

                  
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