Keywords

Gneiss



Keyword Definition

Foliated metamorphic rock with bands or lenticles rich in granular minerals alternating with bands or lenticles rich in minerals with a flaky or elongate prismatic habit. Mylonitic foliation or well developed, continuous schistosity (greater than 50 percent of the rock consists of grains participate in a planar or linear fabric) precludes classification with this concept.

Neuendorf et al. 2005

Parents: Foliated metamorphic rock (110)

Children: Orthogneiss (182); Paragneiss (184)

[Description taken from GeoSciML SimpleLithology201012.rdf]



Hierarchical classification

Sample >> Lithosphere >> Rock >> Whole >> Rock >> Composite genesis >> Metamorphic >> Foliated >> Gneiss

Children

Orthogneiss | Paragneiss


Category: Analysed material

The different kinds of sample material collected in the field have been classified hierarchically. Examples: “till”, “soil”, “vegetation”. Taken from the “Sample_Types_SHARED” database table.


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