• Home
• Taxonomy
• Map search
• Palaentology-search
• Stratigraphy
• Minerals
• • Minerals
  • Rocks
  • • Unconsolidated
    • Consolidated
    • Caustobioliths
    • Volcanics
    • Plutonites
    • Hypabyssal
    • Metamorphites
• Links
• References
• Contacts
• Site map

      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.

kvarcit - polohy v břidl. rul.

No. of sample:	g1447
Rock:	kvarcit, metamorfity
Description:	jeden kus
Localization:	Levý břeh Vlt. ř.km 39.00
Author:	?
Comment:

Next