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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. 8147

No. of sample: g8147
Rock: porfyr, magmatity žilné
Description: jeden kus
Localization: Měcholupy, o. Plzeň-jih, JV obce, J od cesty k Dubči, 160m SZ k. 586,6,
Author: leg.Fiala,1968
Comment: Proterozoikum - svrchní, S okraj malé třešňovky, výbrus č. 83179-I

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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]