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SGRV EGP WPA Total Magnetic Intensity and Gravity
Created: 19 Nov 2024 Revised: 15 Jan 2025

SGRV_EGP_WPA_TMI (& RTP, 1VD & Residual) data processed by DEM Geophysicists from 292 government and company geophysical (magnetic) surveys completed in October 2015. A first vertical derivative was produced from SGRV_EGP_WPA_TMI. A...

SGRV_EGP_WPA_TMI (& RTP, 1VD & Residual) data processed by DEM Geophysicists from 292 government and company geophysical (magnetic) surveys completed in October 2015. A first vertical derivative was produced from SGRV_EGP_WPA_TMI. A residual (SGRV_EGP_WPA_TMI_RESIDUAL) grid was produced using subtraction of 1000m upward continued image from SGRV_EGP_WPA_TMI. RGB images (TIF format) were generated for all grids.SGRV_EGP_WPA_GRAVITY (& 1VD & UC1000_Residual) grids processed by the Geological Survey of South Australia from over 300 government and company geophysical (gravity) surveys. A first vertical derivative was produced from SGRV_EGP_WPA_GRAVITY. A residual (SGRV_EGP_WPA_GRAVITY_UC1000_RESIDUAL) grid was produced using subtraction of 1000m upward continued image from SGRV_EGP_WPA_GRAVITY. RGB images (TIF format) were generated for all grids. Grids interpolated from geo-located survey data are supplied in high precision 32 or 64 bit ERS format, processed to support data analytics.
ESRI layer files are provided for rendered display of ERS grids in ArcGIS.
Images derived from the ERS format grids are provided in 3 band, 8 bit Geotiff format, to support display and illustration.

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About this record

Record No mesac232
Topic Geoscientific Information
Type of Resource Dataset
Category Type
Document Type
Contributor
Sponsor
Tenement
Tenement Holder
Operator
Geological Province
    Other
    Mine Name
    Stratigraphy
    Commodity
      Notes 
      
                    
                    
      
                    
                        		
                
      
              

                
      
                  
                    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/dataset/mesac232
         
          
      
    
      
    
      
      
          Citation        
      
      
        
          SGRV EGP WPA Total Magnetic Intensity and Gravity
          
      
          https://pid.sarig.sa.gov.au/dataset/mesac232
              
         
        
            		
    
      
  
        
  
      
  
      
            
      
            
      
              
      
  
      Technical information
      
    
  
    
                
      
                  
                    Status
                  
                  Completed
                
      
              
                
      
                  
                    Maintenance and Update Frequency
                  
                  
                
      
              
                
      
                  
                    Geographic Reference
                  
                  GDA2020 (EPSG:7844)
                
      
              
      
                
                  Geo bounding box        
                
                
                  {"type":"Polygon","coordinates":[[[131.82128727,-35.33984375],[138.50097477,-35.33984375],[138.50097477,-27.69335938],[131.82128727,-27.69335938],[131.82128727,-35.33984375]]]}
                
              
      
                
                
      
                  
                    Purpose
                  
                  
                    
      To aid in geological exploration.
      
                    
                    
      To aid in geological exploration.
      
                    
                        		
                
      
              
                
                
      
                  
                    Lineage
                  
                  
                    
      The data was originally collected by government and company geophysical surveys. The data was processed in ArcGIS and Encom PA to produce the grid.
Positional accuracy:Original data were located using GPS. GPS units are accurate to tens of metres....
      
                    
                    
      The data was originally collected by government and company geophysical surveys. The data was processed in ArcGIS and Encom PA to produce the grid.
Positional accuracy:Original data were located using GPS. GPS units are accurate to tens of metres.
Attribute accuracy:Not Known
Logical consistency:A GIS package (ArcMap) has been used to check for any flaws in the spatial data. 
Completeness:This surveys that comprise the grid are complete

Geotiff image(s) were derived from the ERS grid(s) by rendering the ERS grid with a non-linear colour stretch and sun-shading (45 degree azimuth and sun direction), before exporting to the tif image format.
      
                    
                      
      
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      Attribute details