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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).


Exhibition detail no. 5882

No. of sample: g5882
Rock: porfyr, magmatity žilné
Description: jeden kus, vrtné jádro
Localization: Všestary u Hradce Králové
Author: leg. Vodička 1963
Comment: podloží české křídy vrt VY-1, hloubka 535,50

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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]