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| TECTONITES, S, LS AND L TYPE
S-tectonites - rocks with dominantly planar fabrics
elements. A schidt may not contain a distinct lineation of quartz grains
or
other minerals such as hornblende. Essentially very dominantly
oblate. However, such fabrics may develop by two superimposed deformations
with maximum stretch changing orientetion through 90 degrees within the
same fabric plane with previous lineation destroyed due to later stronger
metamorphism and deformation. L-S tectonites - rocks with both types of fabric elements. A schistose
rock with equally well formed lineation. The deformatuin may range from
general oblate to general prolate through plane strain. L-tectonites - rocks with dominantly linear fabric elements such as
conglomerates tectonically deformed bu lacking planar fabric. Such
deformation is proltae. Granites may become lineated without development
of discrete planar fabric. Lineations (L-tectonites) are indications of constrictional strain Foliations (S-tectonites) are an indication of flattening strain LS tectonites (including plane strain) have both elongation and
flattening strains
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