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 exhibitsdvojslídná rula, jeden kus - Moldanubikum g1136biotitická rula, jeden kus - Moldanubikum g1140 amfibolitický granodiorit, jeden kus - Moldanubikum g1142 krystalický vápenec, jeden kus - Moldanubikum g1145 erlan, jeden kus - Moldanubikum g1152 skarn, jeden kus - Moldanubikum g1160 svor, jeden kus - Moldanubikum g1180 hadec s pyropem, jeden kus - Moldanubikum g1183 turmalinická žulorula, jeden kus - Moldanubikum g1210 žulorula, jeden kus - Moldanubikum g1211 turmalinická žulorula, jeden kus - Moldanubikum g1212 žulorula, jeden kus - Moldanubikum g1234 aplitická ortorula, jeden kus - Krystalinikum g1235 svorová rula, jeden kus - Krystalinikum g1236 drobová rula, jeden kus - Krystalinikum g1244 okatá pararula, jeden kus - Krystalinikum g1245 plástevná ortorula, jeden kus - Krystalinikum g1247 porfyritová brekcie, jeden kus, vrtné jádro, kambrium g349 svor, jeden kus, muskoviticko-granátický g461 mramor, jeden kus, krystalinikum záp. Sudet g791 | ||
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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]