Journal article
Influence of topography and basement depth on surface rupture morphology revealed from LiDAR and field mapping, Hope Fault, New Zealand
N Khajavi, M Quigley, RM Langridge
Tectonophysics | ELSEVIER | Published : 2014
Abstract
High-resolution airborne LiDAR and field mapping were used to investigate a 29. km-long section of the Hurunui segment of the Hope Fault concealed beneath beech forest. Approximately 20. km of the dextral strike-slip principal slip zone (PSZ) was identified as a series of 69 individual fault strands on the LiDAR DEM. Mapping revealed 70 normal, 55 dextral-reverse, and 100 secondary faults, many of which were previously unrecognized. Secondary faults are kinematically linked with the PSZ and comprise a complex surface fault deformation zone (FDZ). A Rose diagram weighted by the lengths of the PSZ strands shows that the Hurunui segment strikes between 070° and 075° and is optimally oriented fo..
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Awarded by NZ Natural Hazards Research Platform Grant
Funding Acknowledgements
We wish to thank NZ Natural Hazards Research Platform Grant 2010-GNS-01-NHRP and the New Zealand Earthquake Commission Capability Fund for funding this research. We thank the Department of Conservation and land owner of the Poplar Station Kevin Henderson for site access. We thank our field assistants Amir Rezanejad and Fidel Martin Gonzalez and acknowledge Jocelyn Campbell, Chris Smart, Jarg Pettinga, Brendan Duffy, and Nic Barth for academic discussions. We also thank Mike Oskin and An Yin for constructive comments on this manuscript.