What are Foliations and lineations?

What are Foliations and lineations?

If they lie on a plane with mica, but with no common or preferred direction, this is foliation. If the minerals line up and point in a common direction, but with no planar fabric, this is lineation. When minerals lie on a plane AND point in a common direction; this is both foliation and lineation.

What is an example of lineation?

Examples of lineations. (a) Bedding-cleavage intersection lineation, (b) crenulation lineation, (c) rodding, (d) mineral lineation defined by coarse actinolite crystals.

How does a metamorphic lineation form?

Minerals and mineral aggregates can form a linear fabric by means of recrystallization, dissolution/precipitation, or rigid rotation. Stretching of minerals and mineral aggregates into a penetrative stretching lineation forms the most common type of lineation in deformed metamorphic rocks.

What is lineation in rocks?

Lineation is a general term to describe any repeated, commonly penetrative and parallel alignment. of linear elements within a rock (to envision lineation, imagine packages of spaghetti). A lineation. may be a primary igneous or sedimentary fabric element, such as an array of elongate K-feldspar.

What is lineation in a rock?

What are the types of lineation?

There are several types of lineations, intersection lineations, crenulation lineations, mineral lineations and stretching lineations being the most common. Lineation field measurements are recorded as map lines with a plunge angle and azimuth.

How is lineation created?

Lineation may be formed during deformation by the parallel alignment of minerals, fossils, or pebbles; by parallel crenulation cleavages; or by striations and grooves resulting from the movement of a rock over a plane, e.g. a fault surface (see SLICKENSIDE), or flexural slip during folding.

What is a lineation poem?

The technique of making lines of verse that involves also the rationale for breaking the lines, whether by closure (coming to the end of the phrase, clause, or sentence at the end of the line) or by enjambment (continuing the sentence beyond the line boundary, into the next line) (Kinzie, 1999).

What is the purpose of lineation?

The purpose of lineation in verse is to establish a rhythm of expectation that heightens the listener’s attention and apprehension. The purpose of poetic technique, especially meter, is to enchant the listener—to create a gentle hypnotic state that lowers the listener’s resistance and heightens attention.

Why is lineation important in poetry?

In poetry, knowing where and why a line breaks or ends is crucial to a full understanding of the poem they are a part of, for both reader and poet. Line breaks are what distinguish poetry from prose, so the length of a line and its relationship to other lines is a crucial aspect of the art.

Where is lineation formed?

What is lineation poem?