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 exhibitspararula biotitická, jeden kus g1430pararula biotit.- sillimanit., jeden kus g1432 rula grafitická, jeden kus g1435 ortorula s aplitickou žilkou, jeden kus g1436 erlán, jeden kus g1438 pararula, s kvarcit. vložkami, jeden kus- vrtné jádro g1299 rula zábřežské serie, jeden kus, vrtné jádro g1302 muskovitický kvarcit, jeden kus - Moldanubikum g1390 aplitická ortorula, jeden kus - Krystalinikum g1249 svor s granáty, jeden kus - Moldanubikum g1084 erlan, jeden kus - Moldanubikum g1088 amfibolit, jeden kus - Moldanubikum g1091 biotitická ortorula, jeden kus - Moldanubikum g1101 biotititická pararula, jeden kus - Moldanubikum g1105 biotiticko-sillimanická pararula, jeden kus - Moldanubikum g1109 žulorula, jeden kus - Moldanubikum g1113 biotitická svorová rula, jeden kus - Moldanubikum g1120 svor, jeden kus - Moldanubikum g1133 kvarcit, jeden kus - Moldanubikum g1134 žulorula, jeden kus - Moldanubikum g1135 | ||
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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]