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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. 3958

No. of sample: g3958
Rock: mikrogranit, magmatity žilné
Description: dva kusy - vrtné jádro
Localization: Cínovec, vrt C11, hl. 367.8m
Author: leg.M.Štemprok,1961
Comment: žilky m. v křemenném porfyru

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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]