PRACTICAL 4: THE MAGIC OF STEREOGRAPHIC PROJECTION, THE POWER OF 3D MAP ANALYSIS...

Please Note: For all practical reports 25% of the total mark is allocated to the neatness of the work presentation as well as the clarity of the explanation. As a rule of thumb, a clear practical report should include enough information so any reader could understand the aim of the exercise and the path to the solution. The lecturer will not assess any report with a low standard of presentation.

At completion of this practical you will be able to rotate planar and linear elements around horizontal axes. This is a useful exercise to find out the attitude of planar and linear elements before folding for instance. Also, you will be able to determine the strike-dip and dip direction of a fold axial surface and to locate the fold axis on a map. You will also gain more experience with contructing cross-section.

Rotation around an horizontal axis...

...and around an inclined axis.

Exercice 1:

Exercice 2 and 3: Cross-sections