What is linear in geology?

A lineation is any linear feature or element in a rock , and can occur as the product of tectonic, mineralogical, sedimentary, or geomorphic processes. Lineations are the one-dimensional counterparts of foliations, and both are part of the fabric (geometric organization of features) of a rock.

What is linear attitude in geology?

Orientation. The attitude of a linear structure is described by its trend, which is the compass direction of the lineation projected on a horizontal plane, and its plunge. The plunge is the angle made by the linear structure with the horizontal, in the vertical plane parallel to its trend.

What are planar and linear structures in geology?

Structural geologists measure a variety of planar features (bedding planes, foliation planes, fold axial planes, fault planes, and joints), and linear features (stretching lineations, in which minerals are ductilely extended; fold axes; and intersection lineations, the trace of a planar feature on another planar …

What are the three types of geologic structures?

Geologists recognize three main classes of structure caused by deformation in Earth’s crust: unconformities, faults and fractures, and folds.

What is the difference between linear and planar?

As adjectives the difference between linear and planar is that linear is linear (in mathematics, of first-degree polynomial) while planar is of or pertaining to a plane.

What is non foliated metamorphic rocks?

Overview. Nonfoliated metamorphic rocks lack foliated texture because they often lack platy minerals such as micas. They commonly result from contact or regional metamorphism. Examples include marble, quartzite, greenstone, hornfel, and anthracite.

What does dip azimuth mean?

Dip azimuth is the direction (relative to north) that plane is dipping, where values range from 0 to 360. Specifically, dip magnitude and azimuth are calculated from the apparent dips of inlines and crosslines.

What is a linear structure?

A linear or chronological structure is where the story is told in the order it happens. With a chronological or linear structure, the reader finds out what happens in the ‘correct’ order – this can lead the reader through events clearly.

What is a linear feature on a map?

A Linear Feature can denote a single or multiple Themes along a line. By changing the ‘From’ and ‘To’ Data Fields along the length of the Linear Feature, different Themes can be allocated to a single line along different parts of the length.