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 exhibitsrula svorová, jeden kus g7474ortorula migmatitická, jeden kus g7475 pararula - středně zrnitá, jeden kus g7477 amfibolit, jeden kus g7035 ortorula, jeden kus g7038 fylit - svorový, jeden kus g7040 svor, jeden kus g7041 rula,migmatitická s granátem, jeden kus g7042 žulorula, biotitická, jeden kus g7049 amfibolit, jeden kus g7050 pararula, jeden kus g7064 žulorula /ortorula/,biotitická, jeden kus g7065 pararula, jeden kus g7066 ortorula - bítešská, jeden kus g7072 rula až amfibolit, jeden kus, vrtné jádro g7073 fylit - /porfyroid/, jeden kus g7074 porfyroid, dva kusy g7075 ortorula - granátická,muskovit, jeden kus g7076 svor - živcový, jeden kus g7077 amfibolit - granátický, jeden kus g7051 | ||
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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]