Metamorphites
The metamorphic rocks are derived from pre-existing sedimentary and magmatic rocks by mineralogical, chemical, and structural changes, essentially in the solid state, in response to marked changes in temperature and/or pressure (both hydrostatic and oriented), during deeper burial into deeper parts of the Earth´s crust. During these processes parallel orientation of newly formed minerals generally forms (schistosity). Hydrothermal metamorphism represents a special type, because it is related to the migration of solutions near ore veins. Contact metamorphism results from temperature effect near contact with magmatite bodies.
List of exhibitsmramor, jeden kus, krystalinikum záp. Sudet g793mramor, jeden kus, krystalinikum záp. Sudet g796 sillimaniticko-biotit.pararula, jeden kus g975 sillim.-biotit. migm. rula, jeden kus g996 biotitická migmatitická rula, jeden kus g999 krystalický vápenec, jeden kus, vrtné jádro g1036 ortorula (podolská), jeden kus g1444 kontaktní rohovec, jeden kus g1446 kvarcit - polohy v břidl. rul., jeden kus g1447  rula biotitická granátická, jeden kus g1449 břidlice plodová jílovitá, jeden kus g1456 ortorula starosedelská, jeden kus g1457 erlán /vložky v pararulách/, jeden kus g1458 porfyroid, jeden kus g1460 fylit drobový, jeden kus g1503 fylit drobový, jeden kus g1504 metadiabas, jeden kus g1505 fylit sericitický, jeden kus g1506 rula jemnozrnná dvojslídná, jeden kus g1507 rula biotit. muskovit. migmat., jeden kus g1508 | ||
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Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]