O występowaniu migmatytów w Karpatach

Abstract

OCCURRENCE OF MIGMATITES IN THE CARPATHIANS

This paper presents the petrographical and chemical characteristic of an exotic rock of migmatitic type from Brzeziny (Strzyżów sheet) and Jastrzębia (Wadowice sheet).

G e o log i c a l  c o n d i t i o n s  o f  o c c u r a n c e. The investigated rocks occur, in the shape of exotics blocks in Flysch sediments. The block at Brzeziny has a length of about 30 meters. It is located in Lower Lgota (Ellgoth) conglomerates and is superimposed on Wierzowice (Wernsdorf) beds. The migmatite at Jastrzębia is located in a waste clay. Its sharp-edged shape, large size and its occurrence in a zone of tectonic disturbances proves it being a xenolith split off during the shearing of nappes from the crystalline substratum of the Flysch (M. Książkiewicz, 1951).