How To Use Illimani In A Sentence
- Associated units are sillimanite-bearing aluminous metasediments, quartzites, and arnphibolites.
- Sillimanite, which occurs both as fibrolite and as prismatic grains, grows across the L-S fabric in part defined by biotite, and is clearly post-kinematic with respect to the type - 1 tectonites.
- The aluminium silicate minerals andalusite, kyanite, and sillimanite are good examples of this phenomenon of polymorphism.
- Growth of titanite took place during the metamorphic climax in rocks from the kyanite and sillimanite zones.
- Later, shallower and hotter metamorphism produced widespread sillimanite grade gneisses, migmatites and in situ partial melting.
- The envelope consists of garnet gneiss, migmatite, sillimanite gneiss, fibrolite schist, andalusite schist and quartzite, phyllite and unmetamorphosed Palaeozoic to Cretaceous sedimentary rocks.
- Sericite is fine-grained muscovite formed by alteration of such minerals as feldspar, cordierite, and sillimanite.
- Muscovite and aluminosilicates are almost entirely absent although, where present, the aluminosilicate is sillimanite.
- Relative to one another, kyanite forms in a lower temperature/higher pressure environment; andalusite forms in a lower temperature/lower pressure environment, and sillimanite forms in a higher temperature/higher pressure environment. Kyanite
- Kyanite and sillimanite may also be present but only as minor components.
