Simple Lithology

metamorphic rock

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

star this property definition Rock formed by solid-state mineralogical, chemical and/or structural changes to a pre-existing rock, in response to marked changes in temperature, pressure, shearing stress and chemical environment. more like this
star this property example
buchite more like this
fulgurite more like this
star this property narrower amphibolite
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chlorite actinolite epidote metamorphic rock
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eclogite
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foliated metamorphic rock
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glaucophane lawsonite epidote metamorphic rock
star this property broader metamorphic rock
granofels
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granulite
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marble
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migmatite
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quartzite
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serpentinite
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star this property note Robertson (1999) defines the boundary between diagenesis and metamorphism in sedimentary rocks as follows: “…the boundary between diagenesis and metamorphism is somewhat arbitrary and strongly dependent on the lithologies involved. For example changes take place in organic materials at lower temperatures than in rocks dominated by silicate minerals. In mudrocks, a white mica (illite) crystallinity value of < 0.42D.2U obtained by X-ray diffraction analysis, is used to define the onset of metamorphism (Kisch, 1991). In this scheme, the first appearance of glaucophane, lawsonite, paragonite, prehnite, pumpellyite or stilpnomelane is taken to indicate the lower limit of metamorphism (Frey and Kisch, 1987; Bucher and Frey, 1994; Frey and Robinson, 1998). Most workers agree that such mineral growth starts at 150 ± 50° C in silicate rocks. Many lithologies may show no change in mineralogy under these conditions and hence the recognition of the onset of metamorphism will vary with bulk composition.” more like this
star this property source Jackson 1997 more like this
unstar this property type
Resource
Concept
star this property broader composite genesis rock
star this property narrower metamorphic rock
star this property in scheme simplelithology
star this property is primary topic of metamorphic rock& properties=type