Joints perpendicular to the axes of folds are common in orogenic belts, such joints are called
Oscillation ripple marks can readily be used to identify whether a bed is right-side-up or
In a fold, the downward-facing beds are
The strike direction is commonly recorded like -------- using quadrant bearing from the north point.
The tangent of the angle between horizontal and the inclined surface is called
An increase in the continuing (or) lithostatic pressure causes
(1) a decrease in the volume of rocks
(2) an increase in the density of the rock