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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. 8079

No. of sample: g8079
Rock: spessartit, magmatity žilné
Description: jeden kus
Localization: Mítov /Nové Mitrovice/, o. Plzeň- jih, Z osady, lom na JZ úpatí k.541,6,
Author: leg.Fiala, 1964
Comment: proterozoikum - spilitový vulkanismus, bod č. 531-1, výbrus 33785-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]