Simple Lithology

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phyllonite

http://resource.geosciml.org/classifier/cgi/lithology/phyllonite

definition

Mylonitic rock composed largely of fine-grained mica that imparts a sheen to foliation surfaces; may have flaser lamination, isoclinal folding, and deformed veins, which indicate significant shearing. Macroscopically resembles phyllite, but formed by mechanical degradation of initially coarser rock.

source

NADM metamorphic rock vocabulary SLTTm1.0; Marshak and Mitra 1988

type

Resource
Concept

broader

mylonitic rock

	narrower	phyllonite

in scheme

simplelithology

is primary topic of

phyllonite& properties=type