Slow slip along the Hikurangi margin linked to fluid-rich sediments trailing subducting seamounts

NL Bangs, JK Morgan, RE Bell, S Han, R Arai… - Nature …, 2023 - nature.com
Large seamounts and basement relief cause permanent deformation when they collide with
the overriding plate at subduction zones. The resulting structural and compositional …

Fluid pressurisation and earthquake propagation in the Hikurangi subduction zone

S Aretusini, F Meneghini, E Spagnuolo… - Nature …, 2021 - nature.com
In subduction zones, seismic slip at shallow crustal depths can lead to the generation of
tsunamis. Large slip displacements during tsunamogenic earthquakes are attributed to the …

Fluid-rich subducting topography generates anomalous forearc porosity

C Chesley, S Naif, K Key, D Bassett - Nature, 2021 - nature.com
The role of subducting topography on the mode of fault slip—particularly whether it hinders
or facilitates large megathrust earthquakes—remains a controversial topic in subduction …

Biostratigraphically constrained chronologies for Quaternary sequences from the Hikurangi margin of north-eastern Zealandia

MP Crundwell, A Woodhouse - New Zealand Journal of Geology …, 2024 - Taylor & Francis
New biostratigraphically constrained chronologies have been developed to help elucidate
the sedimentary and tectonic history of Quaternary sequences on the Hikurangi margin of …

Seafloor overthrusting causes ductile fault deformation and fault sealing along the Northern Hikurangi Margin

JK Morgan, EA Solomon, A Fagereng… - Earth and Planetary …, 2022 - Elsevier
IODP Site U1518, drilled during IODP Expeditions 372 and 375, penetrated a large-offset (∼
6 km) thrust, the Pāpaku fault, rising from a megathrust that hosts recurring slow slip events …

Physical properties and gas hydrate at a near‐seafloor thrust fault, Hikurangi Margin, New Zealand

AE Cook, M Paganoni, MB Clennell… - Geophysical …, 2020 - Wiley Online Library
The Pāpaku Fault Zone, drilled at International Ocean Discovery Program (IODP) Site
U1518, is an active splay fault in the frontal accretionary wedge of the Hikurangi Margin. In …

A unified effective medium modeling framework for quantitative characterization of hydrate reservoirs

H Pan, H Li, X Wang, J Cai, J Qian, JJ Howard, Q Gao - Geophysics, 2022 - library.seg.org
Quantitative characterization of hydrate reservoirs is essential for evaluating hydrate
resources and monitoring environmental hazards. Rock-physics models provide the …

Expedition 372B/375 summary

DM Saffer, LM Wallace, PM Barnes… - Proceedings of the …, 2019 - oceanrep.geomar.de
Slow slip events (SSEs) at the northern Hikurangi subduction margin, New Zealand, are
among the best-documented shallow SSEs on Earth. International Ocean Discovery …

Composition of fine‐grained sediment in the Hikurangi Trough: Evidence for intermingling among axial gravity flows, transverse gravity flows and margin‐parallel …

MB Underwood - Sedimentology, 2023 - Wiley Online Library
ABSTRACT The International Ocean Discovery Program cored five sites during Expeditions
372 and 375 to investigate the Hikurangi margin, offshore Poverty Bay, North Island, New …

[HTML][HTML] Expedition 372B/375 methods

LM Wallace - Expedition, 2019 - publications.iodp.org
Site U1518 is located on the lower continental slope near the Hikurangi Trench
approximately 62 km from shore in~ 2630 m water depth. The site lies on the frontal …