Diaclase
The term of diaclase , of the Greek dia (in two) and klasis (fracture, rupture) is used to indicate the episode during which a Roche splits without that the disjoined parts move away one from the other (not to confuse with the Faille). There is neither displacement (not rejection), nor filling. This type of fracture is often directed perpendicular to the limits of stratification.
A diaclase can appear because of the Pression S to which the rock is subjected: lithostatic Pressure and forced local related to the movements. But in general, of low tectonic constraints are necessary and the diaclases are formed easily.
This term is commonly used to indicate the very deep furrows which were formed in the calcareous rock of the solid mass of the Tsingy of Bemaraha, with Madagascar. It is also used in Médecine to indicate some fractures caused to correct a deformation.
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