Structural evolution of basement and basin rocks in the Jervois Range Special 1:100 000 mapsheet

Abstract

The structural evolution of basement and basin rocks in the Jervois Range Special 1:100 000 mapsheet has been investigated as part of a holistic re-interpretation of the geological history of that area. This project was carried out in conjunction with the regional geological mapping project by the Northern Territory Geological Survey. Published structural data and newly collected data of ductile and brittle structures from foliation, lineation, folds, and fault and shear zones throughout the map area were analysed and interpreted using a system-focused approach. Information on the relative and absolute timing of formation of structures was integrated with data on their spatial relationships. These data were used to identify local and regional tectonic processes involved in the formation of certain groups of structures. Available regional geophysical datasets were integrated and interpreted to identify structures in the subsurface.