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Plutonites

      The plutonic magmatites (plutonites) resulted from the solidification and crystallization of magma in major depth below the surface. During this process progressive crystallization of silicate melt takes place. This fractionated crystallization cased a magma differentiation and formation of a suite of plutonites. Also assimilation of materials from surrounding rocks of the magmatic chamber affects the composition of plutonites.


Exhibition detail no. 7632

No. of sample: g7632
Rock: granit (žula), magmatity hlubinné
Description: dva kusy
Localization: Krupka, štola č.2
Author: leg.Janečka 1971
Comment: greisen drobnozrnné žuly s hnízdy rozloženého topazu,bohatě impregnovanými kassiteritem, východní překop, žíla 3 sever, u b. 267

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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]