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RB 77/00001 Test drilling at Mount Gambier sewage outfall, Cape Northumberland.
Published: 01 Jan 1977 Created: 06 Nov 2024 Revised: 06 Nov 2024
Author: Williams, A.F.

A shallow test hole was drilled near Cape Northumberland to check the feasibility of tunnelling through the Gambier Limestone beneath the sea bed. The drilling showed widespread flint throughout the limestone, and comparison with nearby outcrop...

A shallow test hole was drilled near Cape Northumberland to check the feasibility of tunnelling through the Gambier Limestone beneath the sea bed. The drilling showed widespread flint throughout the limestone, and comparison with nearby outcrop indicates that flint lenses may be metres long and up to 1.5m thick. Tunneling through such a formation would prove difficult. However flooding of the tunnel as a result of solution cavities in the Gambier Limestone is likely to be much more hazardous.

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About this record

Record No rb7700001
Topic Geoscientific Information
Type of Resource Document
Category Type
Document Type Departmental Publication - Engineering Geology Publication
Contributor
Sponsor
Tenement
Tenement Holder
Operator
Geological Province
    Mine Name
    Stratigraphy Gambier Limestone
    Commodity
      Notes 
      Geographic Locality: Cape Northumberland;Middle Point;Mount Gambier;Hd MacDonnell
Doc No: RB 77/00001
      Geographic Locality: Cape Northumberland;Middle Point;Mount Gambier;Hd MacDonnell
Doc No: RB 77/00001
      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/rb7700001
      Citation Williams, A.F. 1977. RB 77/00001 Test drilling at Mount Gambier sewage outfall, Cape Northumberland. Departmental Publication - Engineering Geology Publication. Government of South Australia.
      https://pid.sarig.sa.gov.au/document/rb7700001

      Technical information

      Status
      Maintenance and Update Frequency
      Geographic Reference GDA2020 (EPSG:7844)
      Geo bounding box {"type":"Polygon","coordinates":[[[140.5,-38.5],[141,-38.5],[141,-37.5],[140.5,-37.5],[140.5,-38.5]]]}
      Purpose 
      
                    
                    
      
                    
                        		
                
      
              
                
                
      
                  
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