Miscellaneous Release—Data 128 – Revised Surficial Geology of Southern Ontario Project Summary and Technical Document Originally released as MRD 128 in October 2003 Revised version of MRD 128 (MRD 128—Revised) released April 2010 Table of Contents ABSTRACT ...................................................................................................................................................3 INTRODUCTION...........................................................................................................................................4 GENERAL QUATERNARY GEOLOGY OF SOUTHERN ONTARIO...........................................................4 DATA SOURCES..........................................................................................................................................5 QUATERNARY/SURFICIAL GEOLOGY MAPS......................................................................................................5 OTHER DATA SOURCES ............................................................................................................................6 FIELD INVESTIGATIONS .................................................................................................................................6 BEDROCK GEOLOGY MAPS............................................................................................................................6 AERIAL PHOTO INTERPRETATION...................................................................................................................6 AGGREGATE RESOURCES INVENTORY PAPERS (ARIPS).................................................................................6 DIGITAL ELEVATION MODELS (DEMS)............................................................................................................6 WATER WELL DATA ......................................................................................................................................6 SOIL SURVEY MAPS ......................................................................................................................................6 PERSONAL COMMUNICATIONS.......................................................................................................................6 PROCESS.....................................................................................................................................................6 SECTION A (PHASE I AND II) .........................................................................................................................6 Phase I – Summary: Processing Individual Maps .................................................................................7 Task 1 – Original Map Edits ...............................................................................................................7 Task 2 – Standardization of Attribute Tables .....................................................................................7 Task 3 – Append each coverage to a single provincial coverage......................................................8 Phase II – The Seamless Map: Methodology........................................................................................8 Translation table.................................................................................................................................8 Tracking Edits.....................................................................................................................................9 SECTION B (COVERAGES AND SYMBOLOGY) ................................................................................................11 Coverages and Attributes (Geological)................................................................................................11 SGU_POLY ......................................................................................................................................11 SGU_POINT.....................................................................................................................................14 SGU_LINE........................................................................................................................................15 SGU_MOR .......................................................................................................................................15 SGU_MISC.......................................................................................................................................16 OGS_PITS .......................................................................................................................................16 SGU_ANNO .....................................................................................................................................17 Coverages and Attributes (Other)........................................................................................................17 SHADED RELIEF.............................................................................................................................17 INDEX ..............................................................................................................................................18 ROADS.............................................................................................................................................19 WATER ............................................................................................................................................19 MUNICIPAL......................................................................................................................................19 Feature Codes and Symbology ...........................................................................................................19 Feature Codes..................................................................................................................................19 Symbology........................................................................................................................................21 Legend .............................................................................................................................................23 LIMITATIONS AND CAUTIONS ON MAP USAGE ....................................................................................26 REFERENCES............................................................................................................................................27 APPENDIX A: MAP SOURCES AND REFERENCES ...............................................................................29 APPENDIX B: PROVINCIAL LEGEND.......................................................................................................36 APPENDIX C: ORIGINAL MAP LEGEND EDITS.......................................................................................37 1 APPENDIX D: ATTRIBUTES (SGU_POLY) ...............................................................................................39 APPENDIX E: PERMEABILITY RANKING SYSTEM.................................................................................41 APPENDIX F: GLOSSARY.........................................................................................................................42 FIGURES Figure 1. Attribute and translation tables for M2400.....................................................................................9 Figure 2. Editing example (linear features).................................................................................................10 Figure 3. Editing example (polygonal features) ..........................................................................................10 Figure 4. Feature Class Properties (sgu_poly.pat) .....................................................................................11 Figure 5. Feature Class Properties (sgu_poly.aat) .....................................................................................13 Figure 6. Feature Class Properties (sgu_point.pat)....................................................................................14 Figure 7. Feature Class Properties (sgu_line.aat). .....................................................................................15 Figure 8. Feature Class Properties (sgu_mor.pat)......................................................................................15 Figure 9. Feature Class Properties (sgu_misc.pat). ...................................................................................16 Figure 10. Feature Class Properties (ogs_pits.pat). ...................................................................................16 Figure 11. Feature Class Properties (sgu_anno.tatgeol)............................................................................17 Figure 12. Raster dataset properties ..........................................................................................................18 Figure 13. Feature Class Properties (index.pat).........................................................................................18 Figure 14. Rotational properties.................................................................................................................21 Figure 15. Bedrock vs Bedrock-drift............................................................................................................23 Figure 16. Materials map:Precambrian bedrock in red, Paleozoic bedrock in purple. ...............................24 Figure 17. Legend layer file displaying bedrock and