Planar fabric Linear fabric and the size and elements In one dimension is Are parallel to much Longer than that in one another the other two dimensions

INTRODUCTION TO STEREOGRAPHIC PROJECTIONS Basic principles Basic procedures Exercise in class

hinge lines axis A axial plane axial surface B (imaginary) Axis axial plane and axial surface

Determination of the relative movement of the two walls from the tension joints

TERMINOLOGY FOR DISPLACEMENT a is the rake angle

Main Bedding Types Bedding Shape level bedding ripple bedding Main Types of plate laminae

Review Show the homework and note book on your desk Practise measurement of attitude of planes and lines in the models

Determination of the top sur faces of the beds from the scour surfaces

Chapter 2 Primary Sedimentary Structures Main types of bedding Determination of younger direction of beds from primary structures Types of stratigraphic break Angular unconformity Soft sedimentary structures

Chapter One Introduction Goals Outline Two supports Types of structures QA uantitative techniques pplication Suggestion