Large Scale Faulting in the Auckland Region

Abstract

Here we present a detailed study of the pre-volcanic topography of Auckland, using borehole and geophysical data, and combine this with structural information gleaned from current topography and exposed geology to identify previously unrecognised concealed faults in the Auckland region. The main aims of the study are to: 1. Develop new fault maps for the Auckland Region that include concealed faults 2. Gain a better understanding of the crustal structure beneath Auckland, in particular depths to key geological boundaries 3. Investigate whether there is any relationship between the faults in Auckland and the location of past AVF vents.