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Hypabyssal magmatites

      The hypabyssal magmatites resulted by magma penetration into fissure or fracture zones (dikes) or into discontinuities along bedding planes (sills). They are often bound to the plutonite bodies and their surroundings. They sometimes occur in groups, so called dike swarms, which might be as much as several dozens of kilometres long (their composition correponds mostly to basic basaltoids).


porfyr křemenný v nadloží west

No. of sample: g1763
Rock: porfyr, magmatity žilné
Description: jeden kus
Localization: Teplice v Čechách, ochr. pásmo
Author: leg. Krásný, 1960
Comment: odkryv mezi hospodou Na Vyýšce a tunelem žel. Trati Mikulov - Moldava
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1763
porfyr křemenný v nadloží west
g1763

Virtual museum of the Czech Geological Survey, www.geology.cz, (C) Czech Geological Survey, 2011, v.0.99 [13.12.2011]