The Bamble amphibolite to granulite facies transitions zone, Norway

Abstract

Granulites are likely candidates to be major constituents of the middle to lower continental crust. Whereas we are unable to directly explore the lower levels of the current continents, the root zones of former orogens are exposed in many Precambrian (4.38-0.59 Ga) cratons, that still constitute large parts of the current continents. The present thesis deals with the transition from amphibolite to granulite facies rocks in one of these areas, the MidProterozoic Bamble Sector in southern Norway.