GSC Geologic Symbol Standard Style File - Bedrock Symbols

These symbols accompany the GSC Bedrock Geodatabase model version 2.8.6 and is up to date as of October 13, 2017

MAP UNIT BOUNDARIES FOLDS FOLDS (continued) OVERPRINTS PLANAR ORIENTATIONS Measured Estimated Measured Estimated Contact Anticline   Syncline, homeoclinic, upright   Fault zone Younging known Younging known Younging unknown Younging unknown Bedding                                               Bedding: overturned <180                 Shear zone                                       Bedding: overturned >180                          Limit of mapping, geology                Bedding: vertical     Anticline, overturned   Syncline, contraclinic, overturned   Limit of mapping, neatline Breccia zone Bedding: horizontal        

                             Mapping precision change Eutaxitic or Igneous layering         Nomenclature change                             Possible Centroids Mineral Code Dol Eutaxitic or Igneous layering: overturned <180       Alteration zone, mineralization zone, gossan Other unit construct               Centroid must be added as Annotation Gossan G Eutaxitic or Igneous layering: vertical     Depositional escarpment Antiform, homeoclinic, upright            Anticline, asymmetrical      Eutaxitic or Igneous layering: horizontal                    Drift FAULTS     colour can be changed with CartoRep  Igneous layering, pillows     Normal           Igneous layering, pillows: overturned <180                                Igneous layering, pillows: vertical       Porphyritic zone -option 1             Anticline, synformal Antiform, contraclinic, overturned colour can be changed with CartoRep                                Igneous layering, pillows: horizontal                       Flow and Compositional layering         Porphyritic zone -option 2  colour can be changed with CartoRep Flow and Compositional layering: overturned <180   Reverse                  Flow and Compositional layering: vertical     Anticline, synformal, overturned   Synform, homeoclinic, upright        Flow and Compositional layering: horizontal               Crossbed foreset         STATIONS Visited station  Thrust Crossbed foreset: overturned <180            

       Remote ground observation Crossbed foreset: vertical     Syncline   Synform, contraclinic, overturned         Crossbed foreset: horizontal         Archival observation       Stylolitic surface         Photograph only  Thrust, overturned      Stylolitic surface: vertical               Isolated outcrop 

           Stylolitic surface: horizontal     Syncline, overturned             Contact             LAB RESULTS       THIN LITHOLOGY Contact: overturned <180     Fossil  Contact: overturned >180 Dextral strike-slip     Vein - option 1   label optional Geochronology    Contact: vertical     Syncline, asymmetrical         Vein - option 2 Contact: horizontal label optional Measured Estimated     MINERAL OCCURRENCES Drillhole  Dyke or Sill margin     Distinctive Lithology or Marker bed          Sinistral strike-slip label optional, colour can be changed with CartoRep   Dyke or Sill margin: vertical   Gossan      Thin unit, Dyke, Sill colour of the unit changed with CartoRep Dyke or Sill margin: horizontal   Syncline, antiformal      Prospect, showing Vein margin       Developed prospect, active    Vein margin: vertical   Oblique-slip dextral, extensional Developed prospect, inactive         Vein margin: horizontal     Thin unit, discontinuous          colour of the unit changed with CartoRep        Joint or Fracture   Syncline, antiformal, overturned   WELLS        Injection or Joint or Fracture: vertical     Producing Suspended Abandoned Disposal        Joint or Fracture: horizontal     TRACE Oil     Oblique-slip dextral, contractional          Fracture zone margin   Form lines Gas     colour can be changed with CartoRep        Fracture zone margin: vertical   Antiform Oil and gas              Fracture zone margin: horizontal   Water              Fault plane: unknown sense     Steam     Oblique-slip sinistral, extensional        Fault plane: normal     Joint / Fracture  Dry            Fault plane: reverse     Antiform, overturned Unknown              Fault plane: thrust             Fault plane: thrust, overturned < 180     Oblique-slip sinistral, contractional        Fault plane: dextral     Geophysical anomaly, positive            Fault plane: sinistral Geophysical anomaly, negative              Antiform, asymmetrical  

Structural line of section ￿￿ ￿￿ Fault plane: dextral extensional            Seismic or Geophysical survey line Fault plane: dextral contractional     LINEAR ORIENTATIONS Detachment, extensional                         Other trace Measured Estimated   Fault plane: sinistral extensional         Lineament: motion undefined  Symmetrical ripple crest   Fault plane: sinistral contractional Synform            Asymmetrical ripple paleoflow   Fault plane: horizontal            Imbrication paleoflow Fault plane: vertical dip-slip        Detachment, contractional         Flute, down plunge   Shear band or Shear zone: unknown sense        

Synform, overturned   Shear band or Shear zone: normal         Flute, up plunge     MEASURED SECTION       Shear band or Shear zone: reverse  

Prod mark      Measured section  Shear band or Shear zone: dextral Back-thrust           Parting lineation   Shear band or Shear zone: sinistral         Trough axis Synform, asymmetrical        Shear band or Shear zone: horizontal     ISOGRAD Igneous flow lineation           Shear band or Shear zone: vertical dip-slip   Isograd codes on high temperature side    Fold hinge          Shear zone: dextral-normal Back-thrust, overturned                            Slump fold hinge, S      Shear zone: dextral-reverse                Monocline, anticlinal bend   Shear zone: sinistral-normal    Slump fold hinge, Z                      Shear zone: sinistral-reverse      Fold hinge, anticline        Generic Axial plane: not defined        Fold hinge, syncline   . . . Axial plane: anticline      Fold hinge, antiform   Monocline, anticlinal bend, overturned        Axial plane: syncline          Fold hinge, synform      Axial plane: crenulation       Generic, downthrown known    Fold hinge, minor S         Axial plane: kink band                   Fold hinge, minor Z   Axial plane: minor s fold           Monocline, synclinal bend      Fold hinge, minor U   Axial plane: minor z fold           Fold hinge, crenulation   Axial plane: minor u fold     SHEARS Cleavage: normal, slaty, spaced Axis of sheath fold       LIMITS (line symbols) Normal       Cleavage: crenulation  

                                                       Axis of sheath antiform Outcrop extent            Monocline, synclinal bend, overturned          Schistosity or Foliation                   Gas field Axis of sheath synform          Gneissosity                           Oil field        Intersection lineation       Bitumen extent Foliation: mylonitic   Reverse  Fault striae   Geothermal field Foliation: transposed bedding            Anticlinorium        Surface Mine, Quarry Mineral lineation                   Sinkhole, crater, caldera                             Stretching lineation                          

  Penetrative Strain    Boudinage axis   Thrust 

Front of alteration    Mullions                 Anticlinorium, overturned  

                Glacial Striae  

                        LIMITS (polygon symbols)                          Dextral strike-slip       

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Outcrop extent 

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         

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Synclinorium 

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  

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  

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                     

                          Gas field   Sinistral strike-slip 

         Synclinorium, overturned   Oil field

               

                      Bitumen extent   Oblique-slip dextral, extensional        

                 Arch  Geothermal field                       

                               Possible Centroids  Surface Mine, Quarry Active   Centroid must be added as Annotation  Inactive  Oblique-slip dextral, contractional        Trough                              Possible Centroids   

  Sinkhole  

 Sinkhole, crater, caldera  

               Crater 

  Centroid must be added as Annotation  CR





 

    

  Caldera CA                         



 Penetrative Strain  Oblique-slip sinistral, extensional         Recumbant, anticlinal  

                   

             

      

Alteration    

                              

Oblique-slip sinistral, contractional  Recumbant, synclinal              LIMITS (digitzing lines only)               Fault zone                              Shear zone      

Detachment, extensional  Breccia zone             Anticline, homeoclinic, upright                  Gossan                                    Drift                               Porphyritic      

 Detachment, contractional       Anticline, contraclinic, overturned                  

                                             

Generic 

       

          

                     