Česká geologická služba
Virtual museum
Home  > Minerals > Rocks > Hypabyssal

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. 8226

No. of sample: g8226
Rock: porfyr, magmatity žilné
Description: jeden kus
Localization: Skryje, o. Rakovník, S obce, l. břeh Berounky, asi 200m Z od mostu
Author: leg. Fiala, 1961
Comment: Proterozoikum - spilitový vulkanismus, výbrus 115113-I

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