Rock Cleavage (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Rock Cleavage

Rock cleavage, as commonly defined in geological text-books, in effect, is a rock structure by virtue of which the rock has the capacity to part along certain parallel surfaces more easily than along others. It is possessed by a considerable proportion of the rocks of the litho sphere. It is usually distinguished from actual partings Of a similar nature. The parallel structures may be original or secondary.

Original structures are induced in the rock mainly during its solidification from a magma or deposition in water, though perhaps modified by subsequent static metamorphism. They comprise sedi mentary bedding, flow structure Of lavas, certain gneissic structures and pegmatite structures.

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