Articles | Volume 9, issue 2
Solid Earth, 9, 469–489, 2018
https://doi.org/10.5194/se-9-469-2018
Solid Earth, 9, 469–489, 2018
https://doi.org/10.5194/se-9-469-2018

Research article 23 Apr 2018

Research article | 23 Apr 2018

Controls on fault zone structure and brittle fracturing in the foliated hanging wall of the Alpine Fault

Jack N. Williams et al.

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AR: Author's response | RR: Referee report | ED: Editor decision
AR by Jack Williams on behalf of the Authors (04 Mar 2018)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (17 Mar 2018) by Bernhard Grasemann
AR by Jack Williams on behalf of the Authors (18 Mar 2018)  Author's response    Manuscript
ED: Publish as is (19 Mar 2018) by Bernhard Grasemann
ED: Publish as is (19 Mar 2018) by Federico Rossetti(Executive Editor)
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Short summary
We present new data on the orientation of fractures, their fill, and their density around the Alpine Fault, a plate boundary fault on the South Island of New Zealand. Fractures < 160 m of the fault are filled and show a range of orientations, whilst fractures at greater distances (< 500 m) are open and parallel to the rock's mechanical weakness. We interpret the latter fracture set to reflect near-surface processes, whilst the latter are potentially linked to deep-seated Alpine Fault seismicity.