The causes of continental arc flare ups and drivers of episodic magmatic activity in Cordilleran orogenic systems

JB Chapman, JE Shields, MN Ducea, SR Paterson… - Lithos, 2021 - Elsevier
Continental arcs in Cordilleran orogenic systems display episodic changes in magma
production rate, alternating between flare ups (70–90 km 3 km− 1 Myr− 1) and lulls (< 20 km …

An updated catalogue of New Zealand's mantle peridotite and serpentinite

JM Scott - New Zealand Journal of Geology and Geophysics, 2020 - Taylor & Francis
New Zealand has a remarkably large number of exhumed mantle occurrences for a small
exposed landmass. Since the last regional syntheses of peridotite (1987) and serpentinite …

Continent stabilisation by lateral accretion of subduction zone-processed depleted mantle residues; insights from Zealandia

JM Scott, J Liu, DG Pearson, GA Harris… - Earth and Planetary …, 2019 - Elsevier
To examine how the mantle lithosphere stabilises continents, we present a synthesis of the
mantle beneath Zealandia in the SW Pacific Ocean. Zealandia, Earth's “8th continent” …

Peridotitic lithosphere metasomatized by volatile-bearing melts, and its association with intraplate alkaline HIMU-like magmatism

JM Scott, M Brenna, JA Crase, TE Waight… - Journal of …, 2016 - academic.oup.com
The role of lithospheric mantle metasomatized by CO2-bearing melts in the genesis of HIMU-
like alkaline intraplate basalts is investigated using a suite of peridotite xenoliths from New …

Variable sources for Cretaceous to recent HIMU and HIMU-like intraplate magmatism in New Zealand

QHA Van der Meer, TE Waight, JM Scott… - Earth and Planetary …, 2017 - Elsevier
Continental intraplate magmas with isotopic affinities similar to HIMU are identified
worldwide. Involvement of an asthenospheric HIMU or HIMU-like source is contested …

Formation of Ultra‐Depleted Mantle Peridotites and Their Relationship With Boninitic Melts: An Example From the Kamuikotan Unit, Hokkaido, Japan

I Nishio, T Morishita, A Tamura, K Itano… - Journal of …, 2023 - Wiley Online Library
The extent of partial melting of peridotites is a function of temperature, pressure, and fluid
supply. Understanding the petrogenesis of ultra‐depleted peridotites is important for …

Late Cretaceous (99-69 Ma) basaltic intraplate volcanism on and around Zealandia: Tracing upper mantle geodynamics from Hikurangi Plateau collision to …

K Hoernle, C Timm, F Hauff, V Tappenden… - Earth and Planetary …, 2020 - Elsevier
Margins resulting from continental breakup are generally classified as volcanic (related to
flood basalt volcanism from a starting plume head) or non-volcanic (caused by tectonic …

Abrupt spatial and geochemical changes in lamprophyre magmatism related to Gondwana fragmentation prior, during and after opening of the Tasman Sea

QHA van der Meer, M Storey, JM Scott, TE Waight - Gondwana Research, 2016 - Elsevier
Abstract High-precision 40 Ar/39 Ar dating of lamprophyre dike swarms in the Western
Province of New Zealand reveals that these dikes were emplaced into continental crust prior …

Lattice-preferred orientation (LPO) of olivine and amphibole in amphibole peridotites and neighboring hornblendites from Gapyeong, South Korea and implications for …

J Lee, H Jung - Journal of Geodynamics, 2023 - Elsevier
Amphibole peridotites and neighboring hornblendites are often found in subduction zones.
To understand the effect of amphibole-rich rocks on seismic anisotropy in subduction zones …

Slab-triggered arc flare-up in the Cretaceous Median Batholith and the growth of lower arc crust, Fiordland, New Zealand

M Decker, JJ Schwartz, HH Stowell… - Journal of …, 2017 - academic.oup.com
The Mesozoic continental arc in Fiordland, New Zealand, records a c. 110 Myr history of
episodic, subduction-related magmatism that culminated in a terminal surge of mafic to …