Toward a Further Hypothesis on the Scandinavian Caledonides

Abstract

A synopsis is prepared of the strike of 1474 lineations and 796 sub-vertical s-surfaces indicated on published maps of areas in the Scandinavian Caledonides. The material seems to support the hypothesis that parts with different strike were largely deformed during different phases, and that a given phase of deformation gave origin to about the same strike wheresoever it had effects. It is suggested that there were at least three main deformation phases, first one with transport toward about ESE, then one with transport toward about SSE, and finally one with transport toward S (and E). The first phase is taken to have affected the whole of the mountain chain. Its traces are best preserved and dominate in the central parts. The second phase had its chief effects in the north and in the southwest, where its strike directions dominate in the maps. The last phase dominates locally in different parts of the mountain chain.