Stereographic projection techniques for geologists and civil engineers/
Richard J. Lisle, Peter R. Leyshon.
- 2nd ed.
- Cambridge, UK ; Cambridge University Press, 2004.
- viii, 112 p. : ill. ; 29 cm.
1 Geological structures of planar type 2 Measuring and recording the orientation of planar structures 3 Geological structures of linear type 4 Measuring and recording the orientation of lines 5 Why do we need projections? 6 Idea of stereographic projections 7 Approximate method of plotting lines and planes 8 Exercises 1 9 The stereographic net 10 Precise method of plotting planes 11 Precise methods for plotting lines 1 Where the plunge of the line is known 12 Precise methods for plotting lines 2 Where the line is known from its pitch 13 Intersection of two planes 14 Plane containing two lines 15 Apparent dip 16 The angle between two lines 17 The angle between two planes 18 The plane which bisects the angle between two planes 19 Projecting a line onto a plane 20 Stereographic and equal-area projections 21 The polar net 22 Analysing folds 1 Cylindricity and plunge of axis 23 Analysing folds 2 Inter-limb angle and axial 24 Analysing folds 3 Style of folding 25Analysing folds 4 The orientation of folds 26 Folds and cleavage 27 Analysing folds with cleavage 28 Faults 1 Calculating net slip 29 Faults 2 Estimating stress directions 30 Cones/small circles 31 Plotting a cone 32 Rotations about a horizontal axis 33 Example of rotation about a horizontal axis 34 Example of rotation 35 Rotation about an inclined axis 36 Example of rotation about an inclined axis 37 Density contouring on stereograms 38 Superposed folding 1 39 Superposed folding 2 Sub-area concept 40 Example of analysis of folds 41 Geometrical analysis of folds 42 Example of analysis of jointing 43 Geotechnical applications 44 Assessing plane failure. Rock slope stability 45 Assessing plane failure. Daylighting 46 Assessing wedge failure 47 Exercises 2 48 Solutions to exercises