The Outcrop Quiz

Can you always tell the difference between anticlines and synclines, themselves. You can often tell whether you're dealing with joints and faults, unconformities and disconformities, concretions sedimentary, igneous or metamorphic rocks, and that's usually all and conglomerates, bedding and cleavage, strike and dip, you need in order to recognise structures and sort out their apparent dip and true dip? If your answer to all that is a firm yes, orientation. Details in the rocks themselves may enable you to then stop reading right now. If not . . . distinguish, say, a limestone from a sandstone or a granite from a This book offers entertainment and challenge, satisfaction and basalt, but you'll be surprised how often you can decipher the enlightenment, to anyone who knows a bit of geology but hasn't essentials of a story without needing to know just what the rocks had much chance to study rocks in outcrop. The entertainment are. and challenge come from looking at the pictures and trying the An outcrop can be interesting without being spectacular. The questions. The satisfaction comes from the answers you get right, superficially dull roadside cutting, for instance, generally repays a the enlightenment from finding out where you went wrong. second look.