Kolumnowa oddzielność porwaków piaskowca w bazalcie z okolicy Wlenia

Stanisław Wagner

Abstract


COLUMNAR JOINTING OF SANDSTONE XENOLITHS IN BASALT OF REGION OF WLEŃ

The subject of this paper is the description of an interesting phenomenon observed by·the author in a small basalt quarry west of Wleń (Góry Kaczawskie, Lower Silesia), Fig. 1.

Intruded into nepheline basalt is a great number of xenoliths of Cretaceous sandstone, the "Quadersandstein"; in the shape of small and large fragments reaching at times a diameter of over 2 meters; they may be considered to be epixenoliths (Fig. 2).


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