Crenulation - Wikipedia
In a geological context, crenulation or crenulation cleavage is a fabric formed in metamorphic rocks such as phyllite, schist and some gneiss by two or more stress directions causing the formation of the superimposed foliations.
Crenulation cleavage - ALEX STREKEISEN
Crenulation cleavage is the most common type of cleavage in multiply deformed, intermediate to high-grade metapelitic rocks. Crenulation cleavage is characterized by phyllosilicate-rich (P) domains, in which phyllosilicates deï¬ ne the overall cleavage, separated by quartz and feldspar-rich (QF)domains (Fig.1).
Crenulated Definition & Meaning - Merriam-Webster
: having an irregularly wavy or serrate outline. a crenulated shoreline. crenulation. ˌkren-yə-ˈlā-shən. noun. Examples of crenulated in a Sentence.
Crenulation Cleavage - an overview | ScienceDirect Topics
Crenulation cleavage is the deformation of finely foliated rocks, characterized by the buckling of mica layers and the dissolution and re-precipitation of quartz along interphase boundaries, resulting in compositional layering parallel to the new schistosity.
Cleavage (geology) - Wikipedia
Crenulation cleavage contains microlithons that were warped by a previous foliation. Folding occurs when there are multiple phases of deformation, the latter one causes symmetric or asymmetric microfolds that deform previous foliations. [1]
Crenulation cleavages - SpringerLink
Crenulation cleavages are zones of mineral differentiation that are coincident with the limbs of microfolds in crenulated fabrics. They consist of subplanar domains of highly oriented micaceous material that constitute preferred sites of parting in the rock.
Features from the field: crenulation cleavage
Apr 27, 2020 · As a result, a foliation which developed earlier may be overprinted by a new foliation, with a brand new orientation, that refolds the previous structure. This second foliation is called ‘ crenulation cleavage ‘. Schistose rocks with a nice continuous foliation.
Foliation and Cleavage. A fabric is built of minerals and mineral aggregates with a preferred orientation that penetrates the rock at the microscopic to centimeter scale. Linear fabric – elongate elements with a preferred orientation.
CRENULATION Definition & Meaning - Dictionary.com
noun. a minute crenation. the state of being crenulate. crenulation. / ˌkrɛnjʊˈleɪʃən / noun. any of the teeth or notches of a crenulate structure. a crenulate formation.
Morphologic Classification of Crenulation Cleavage
Crenulation cleavages are zones of mineral differentiation coincident with the limbs of microfolds in crenulated rock fabrics. They are subplanar domains of highly oriented micaceous material which constitute preferred sites of parting in the rocks.
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