1 Some fundamentals of geological maps. - 1. 1 Introduction. - 1. 2 The topographic base map. - 1. 3 Geological aspects. - 1. 4 Summary chapter. - 1. 5 Selected further reading. - 2 The nature of geological maps: the Ten Mile map of the UK and the 1: 2 500 000 map of the USA. - 2. 1 Introduction: cartographic matters. - 2. 2 Interpretation of the maps: geology and relief. - 2. 3 Map patterns and geological structure. - 2. 4 Conclusion. - 2. 5 Summary of chapter. - 3 The three-dimensional aspect: structure contours. - 3. 1 Introduction. - 3. 2 The nature of structure contours. - 3. 3 Examples of structure contours on maps. - 3. 4 Structure contours derived from borehole/well information. - 3. 5 Structure contours derived from topography: the theory. - 3. 6 Structure contours derived from topography: the practice. - 3. 7 Structure contours from topography and boreholes. - 3. 8 Straight structure contours. - 3. 9 Summary of chapter. - 3. 10 Selected further reading. - 4 Measurements in three dimensions: strike and dip formation thickness and depth. - 4. 1 Introduction. - 4. 2 Strike and dip. - 4. 3 Apparent dip. - 4. 4 Formation thickness. - 4. 5 Formation depth. - 4. 6 The three-point' method. - 4. 7 Summary of chapter. - 4. 8 Selected further reading. - 5 Geological cross-sections. - 5. 1 Introduction. - 5. 2 Line of section. - 5. 3 Scale and vertical exaggeration. - 5. 4 Manual drawing of cross-sections. - 5. 5 Structure and stratigraphic sections. - 5. 6 Three-dimensional diagrams. - 5. 7 Summary of chapter. - 5. 8 Selected further reading. - 6 Visual assessment of outcrop patterns. - 6. 1 Introduction. - 6. 2 Horizontal formation. - 6. 3 Dipping formations. - 6. 4 Vertical formations. - 6. 5 Assessment of formation thickness. - 6. 6 Summary of chapter. - 6. 7 Exercises on visual assessment. - 7 Unconformities. - 7. 1 Introduction. - 7. 2 Terminology. - 7. 3Recognition on maps. - 7. 4 Associated features. - 7. 5 Use on maps. - 7. 6 Palaeogeological maps. - 7. 7 Summary of chapter. - 7. 8 Selected further reading. - 8 Folds. - 8. 1 Introduction. - 8. 2 Description from maps. - 8. 3 Visual assessment on maps. - 8. 4 Measurements on maps. - 8. 5 Summary of chapter. - 9 Faults: the fundamentals. - 9. 1 Introduction. - 9. 2 Fault parts orientation and dimensions. - 9. 3 Fault displacement. - 9. 4 Classification of faults. - 9. 5 Visual assessment on maps. - 9. 6 Measurements on maps. - 9. 7 Summary of chapter. - 10 More on faults: contraction (thrust) extension and strike-slip faults. - 10. 1 Introduction. - 10. 2 Contraction (thrust) faults. - 10. 3 Extension faults. - 10. 4 Strike-slip faults. - 10. 5 Summary of chapter. - 10. 6 Selected further reading. - 11 Igneous and metamorphic rocks; mineral deposits. - 11. 1 Introduction. - 11. 2 Igneous rocks. - 11. 3 Metamorphic rocks. - 11. 4 Mineral deposits. - 11. 5 Summary of chapter. - 11. 6 Selected further reading. - 12 Geological history from maps. - 12. 1 Introduction. - 12. 2 Sedimentary successions. - 12. 3 Deformed rocks. - 12. 4 Non-sedimentary rocks. - 12. 5 Reading a geological map. - 12. 6 Writing a map report. - 12. 7 Summary of chapter. - 13 The production of geological maps. - 13. 1 Introduction. - 13. 2 The field survey. - 13. 3 Preparation of maps for publication. - 13. 4 Map reports. - 13. 5 Availability of maps. - 13. 6 Conclusions. - 14 The heritage of geological maps. - 14. 1 Introduction. - 14. 2 A short history of geological maps. - 14. 3 The contributions of some individuals. - 15 Current trends in geological maps. - 15. 1 Introduction. - 15. 2 New technologies in geologicam mps. - 15. 3 New forms in geological maps. - 15. 4 Specialised and thematic maps. - 15. 5 Summary of chapter. - 15. 6 Selected further reading. - References. Language: English