2.2 - Why Does Geological Orientation Matter Flashcards
Jointing
Fractures in the rock created without displacement
Dipping
The angle of inclination of a rock down its steepest slope
Folding
A bend in the rock strata
4 Situations Of Dip
Horizontal Dip
Seaward Dip (High Angle)
Seaward Dip (Low Angle)
Landward Dip
Horizontal Dip
Veritcla or near vertical with notches reflecting those strate more easily eroded.
Seaward Dip (High Angle)
Sloping, low angle cliff profile, with one rock layer facing the sea, vulnerable to rock slides down the slope.
Seaward Dip (Low Angle)
Profile may exceed 90 degrees producing areas of overhanging rock, very vulnerable to rockfall.
Landward Dip
Steep profiles of 70-80 degrees producing a very stable cliff with reduced rock falls.
Laterite Compared To Basalt
Laterite is less consolidated, more permeable and so water is able to move through