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RB 85/00020 Genesis of jade and host rocks in DDH14 at outcrop 15 Cowell Jade Province, South Australia.
Published: 01 Apr 1985 Created: 06 Nov 2024 Revised: 06 Nov 2024
Author: Farrand, M.G.

The jade is produced by series of episodes of recrystallization and replacement during the retrograde metamorphism of prograde amphibolite facies assemblages in impure carbonate sediments. The quality is partly controlled by the original sediment...

The jade is produced by series of episodes of recrystallization and replacement during the retrograde metamorphism of prograde amphibolite facies assemblages in impure carbonate sediments. The quality is partly controlled by the original sediment composition, with silica content the major control and the ratio of magnesium to calcium secondary. The physical control of quality is the fineness of grain size of the nephrite, with the best jade being a finely felted mesh of tufted nephrite.

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About this record

Record No rb8500020
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 Gawler Craton
Mine Name Cowell Jade Deposit
Stratigraphy
Commodity
Notes 
Geographic Locality: Cowell
Doc No: RB 85/00020
Geographic Locality: Cowell
Doc No: RB 85/00020
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/rb8500020
Citation Farrand, M.G. 1985. RB 85/00020 Genesis of jade and host rocks in DDH14 at outcrop 15 Cowell Jade Province, South Australia. Departmental Publication - Geological Survey Geoscience Publication. Government of South Australia.
https://pid.sarig.sa.gov.au/document/rb8500020

Technical information

Status
Maintenance and Update Frequency
Geographic Reference GDA2020 (EPSG:7844)
Geo bounding box {"type":"Polygon","coordinates":[[[136.5,-33.5],[137,-33.5],[137,-33],[136.5,-33],[136.5,-33.5]]]}
Purpose 

                    
                    

                    
                  		
                

              
                
                

                  
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