ALT Fault Parallel profile, showing the good correlation between InSAR uplift, modelled interseismic, coseismic, and total uplift, and exhumation model nodes

ALT Diagram showing the variation of the sub-surface structure of the Alpine Fault that has been inverted from East, North, and Up velocities. The dip of the Alpine Fault is shallowest in the south, causing a bend in the fault that focuses uplift

ALT G23A-05: Localised Uplift of New Zealand's Southern Alps Follows Long Term Exhumation Patterns and Rates Tue, Dec 13 11:40am - 11:50am (Central) Author(s): Jack McGrath, University of Leeds, COMET John Elliott, University of Leeds, COMET Tim Wright, University of Leeds Ian Hamling, GNS Science An important component of moutain growth is the role played by long-term motion on faults. How faults effect this growth depends on their orientation and amount they slip. We use satellite remote sensing to measure ground motion in three components, allowing us to inversely model the structure and slip-rates of the Alpine Fault, New Zealand, and show how variations in the uplift rate of the Southern Alps can be explained through variable slip-rates on the fault, rather than structural changes. We show that the current pattern of uplift correlates well with exhumation models and geological mapping, indicating that present day processes are representative of the long-term mountain building.