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Dip is the inclination of a given feature, and is measured from the steepest angle of descent of a tilted bed or feature relative to a horizontal plane. [5] [6] True dip is always perpendicular to the strike. It is written as a number (between 0° and 90°) indicating the angle in degrees below horizontal.
The Law of Original Horizontality states that beds are deposited horizontally due to gravity. If the beds are not horizontal, then that is an indication that they have been tilted or warped by geologic processes. [21] The Law of Lateral Continuity states that the bed deposits extend laterally in all directions. This implies that two places ...
English: Apparent dip is shown when a tilted geologic feature is exposed along a face which is not perpendicular to the strike direction. This is a diagram illustrating the difference between true dip and apparent dip on a tilted sedimentary bed
However, to get a true reading, the axis of the beds must be visible. It is also difficult to distinguish between the cross-beds of a dune and the cross-beds of an antidune. (Dunes dip downstream while antidunes dip upstream.) [1] The direction of motion of the cross-beds can show ancient flow or wind directions (called paleocurrents).
Homocline near Lulworth Cove, England Diagram of a homocline Homocline in Aberdeenshire, Scotland. In structural geology, a homocline or homoclinal structure (from old Greek: homo = same, cline = inclination), is a geological structure in which the layers of a sequence of rock strata, either sedimentary or igneous, dip uniformly in a single direction having the same general inclination in ...
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Cuesta in Italy Schematic cross section of three cuestas, dip slopes facing left, and harder rock layers in darker colors than softer ones Cuesta in Crimea Magaliesberg Range, Transvaal, South Africa. A cuesta (Spanish for 'slope') is a hill or ridge with a gentle slope on one side, and a steep slope on the other.