High precision photogrammetric methods used in geological mapping

Abstract

As part of a programme of experimental photogrammetric mapping we present results of geological mapping using advanced photogrammetric instruments in order to test the applicability of such sophisticated methods to geology. Two experiments are described. They were performed to test the methods on regional and detailed mapping respectively. In both cases vertical aerial photographs at an approximate scale of 1:50000 were used. Different types of photogrammetric instruments constructed for and normally employed in topographical mapping were used. For photograllllpetric principles and instruments see for instance Schwidefsky & Ackermann (1976).