Articles | Volume 8, issue 1
https://doi.org/10.5194/esurf-8-177-2020
https://doi.org/10.5194/esurf-8-177-2020
Research article
 | 
28 Feb 2020
Research article |  | 28 Feb 2020

River patterns reveal two stages of landscape evolution at an oblique convergent margin, Marlborough Fault System, New Zealand

Alison R. Duvall, Sarah A. Harbert, Phaedra Upton, Gregory E. Tucker, Rebecca M. Flowers, and Camille Collett

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Cited articles

Amos, C. B., Burbank, D. W., and Read, S. A. L.: Along-strike growth of the Ostler fault, New Zealand: Consequences for drainage deflection above active thrusts, Tectonics, 29, TC4021, https://doi.org/10.1029/2009TC002613, 2010. 
Babault, J., Van Den Driessche, J., and Teixell, A.: Longitudinal to transverse drainage network evolution in the High Atlas (Morocco): The role of tectonics, Tectonics, 31, TC4020, https://doi.org/10.1029/2011TC003015, 2012. 
Baker, J. and Seward D.: Timing of Cretaceous extension and Miocene compression in northeast South Island, New Zealand: Constraints from Rb-Sr and fission-track dating of an igneous pluton, Tectonics, 15, 976–983, https://doi.org/10.1029/96TC00626, 1996. 
Bai, Y., Lay, T., Cheung, K. F., and Ye, L.: Two regions of seafloor deformation generated the tsunami for the 13 November 2016, Kaikōura, New Zealand earthquake, Geophys. Res. Lett., 44, 6597–6606, https://doi.org/10.1002/2017GL073717, 2017. 
Beeson, H. W., McCoy, S. W., and Keen-Zebert, A.: Geometric disequilibrium of river basins produces long-lived transient landscapes, Earth Planet. Sc. Lett., 475, 34–43, https://doi.org/10.1016/j.epsl.2017.07.010, 2017. 
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Short summary
In this study, we examine river patterns and the evolution of the landscape within the Marlborough Fault System, South Island, New Zealand, where the Australian and Pacific tectonic plates collide. We find that faulting, uplift, river capture and the long-lived nature of the drainage network all dictate river patterns at this site. Based on these results and a wealth of previous geologic studies, we propose two broad stages of landscape evolution over the last 25 million years of orogenesis.