On a Dolerite in the Dutch Carboniferous.

Abstract

In 1928 Dr. P. Tesch published a note on the occurrence of an igneous rock in Dutch Coal-measures (1).1 As this is the first occurrence of an igneous rock in Holland, the present authors have decided to publish a more detailed petrographical description of the rock, together with an attempt to correlate it with similar rocks in Great Britain and Germany.