@article{a36752603cec45eaa99cefa5bbe90f5e,
title = "Variable In Situ Stress Orientations Across the Northern Hikurangi Subduction Margin",
abstract = "We constrain orientations of the horizontal stress field from borehole image data in a transect across the Hikurangi Subduction Margin. This region experiences NW-SE convergence and is the site of recurrent slow slip events. The direction of the horizontal maximum stress is E-W at an active splay thrust fault near the subduction margin trench. This trend changes to NNW-SSE in a forearc trench slope basin on the offshore accretionary wedge, and to NE-SW in the onshore forearc. Multiple, tectonic, and geological processes, either individually or in concert, may explain this variability. The observed offshore to onshore stress rotation may reflect a change from dominantly compressional tectonics at the deformation front, to a strike-slip and/or extensional tectonic regime closer to the Taupo Volcanic Zone, further inland. In addition, the offshore stress may be affected by topography and/or stress rotation around subducting seamounts, and/or temporal stress changes during the slow slip cycle.",
author = "McNamara, {D. D.} and E. Behboudi and L. Wallace and D. Saffer and Cook, {A. E.} and A. Fagereng and M. Paganoni and Wu, {Hung Yu} and G. Kim and H. Lee and Savage, {H. M.} and P. Barnes and I. Pecher and LeVay, {L. J.} and Petronotis, {K. E.}",
note = "Funding Information: We gratefully acknowledge IODP, Texas A&M University staff, Schlumberger Drilling and Measurements, the crew of the Joides Resolution, and the Expedition 375 and 372 science parties. We also thank Dr Annika Greve and Dr Weiren Lin for manuscript reviews and constructive critiques. D. D. McNamara is funded by Geological Survey Ireland for this work. M. Paganoni is funded by NERC grant NE/R016615/1. L. Wallace, P. Barnes, and I. Pecher acknowledge funding from the New Zealand Ministry for Business, Innovation, and Employment's Endeavor fund (contract CO5X1605 to GNS Science). A. Fagereng acknowledges funding from ERC Horizon 2020 Starting Grant 715836. K. E. Petronotis and L. J. LeVay received funding from the IODP JRSO (NSF Grant 1326927). This work was carried out in part using the Techlog Wellbore Software provided for research purposes by Schlumberger Limited. Publisher Copyright: {\textcopyright} 2021. The Authors.",
year = "2021",
month = mar,
day = "16",
doi = "10.1029/2020GL091707",
language = "English (US)",
volume = "48",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "5",
}