Regional volcanism of northern Zealandia: post-Gondwana break-up magmatism on an extended, submerged continent

N Mortimer, PB Gans, S Meffre, CE Martin, M Seton… - 2018 - pubs.geoscienceworld.org
Volcanism of Late Cretaceous–Miocene age is more widespread across the Zealandia
continent than previously recognized. New age and geochemical information from widely …

Imprints of modal metasomatism in the post-Deccan subcontinental lithospheric mantle: petrological evidence from an ultramafic xenolith in an Eocene lamprophyre …

R Pandey, NVC Rao, D Pandit, S Sahoo, P Dhote - 2018 - pubs.geoscienceworld.org
We report here on the occurrence of an interesting mantle-derived ultramafic xenolith
entrained in an Eocene (c. 55 Ma) lamprophyre dyke from the Dongargaon area of the …

Alkalinity of ocean island lavas decoupled from enriched source components: A case study from the EM1-PREMA Tasmantid mantle plume

S Ruttor, O Nebel, Y Nebel-Yacobsen… - … et Cosmochimica Acta, 2021 - Elsevier
The alkalinity of ocean island basalts (OIB), which form by upwelling thermo-chemical
instabilities in the mantle, is often associated with the degree of melting. Yet it remains to be …

[HTML][HTML] The isotopic origin of Lord Howe Island reveals secondary mantle plume twinning in the Tasman Sea

A Rogers, M Flanigan, O Nebel, Y Nebel-Jacobsen… - Chemical …, 2023 - Elsevier
Thermochemical convective instabilities in the mantle, often referred to as mantle plumes,
cause mantle melting that give rise to ocean island basalts (OIB) in intraplate settings. The …

Magma production along the Lord Howe seamount chain, northern Zealandia

M Seton, S Williams, N Mortimer, S Meffre… - Geological …, 2019 - cambridge.org
One of the world's most notable intraplate volcanic regions lies on the eastern Australian
plate and includes two age-progressive trails offshore (Tasmantid and Lord Howe seamount …

The morphology of the Tasmantid Seamounts: Interactions between tectonic inheritance and magmatic evolution

FD Richards, LM Kalnins, AB Watts… - Geochemistry …, 2018 - Wiley Online Library
Basement structure is known to exert strong magmatic and morphological control on
continental volcanoes, but relatively little is known about the structural control of submarine …

Miocene central volcanoes, NW New South Wales: genesis over a Lithospheric cavity (?)

FL Sutherland, BE Cohen… - Proceedings of the …, 2019 - search.informit.org
Basalt fields and central volcanoes form a curved south-migrating trace through NW New
South Wales. A segment of East Australian intraplate volcanism, it traces Australia's northern …

Geophysical and geological characterisation of dredge locations from RV Southern Surveyor voyage ss2012_v06 (ECOSATI): hotspot activity in northern Zealandia

M Seton, S Williams, N Mortimer, S Meffre… - ASEG Extended …, 2018 - CSIRO Publishing
In October-November 2012 a geophysical mapping and dredging campaign in the eastern
Coral Sea was conducted on the RV Southern Surveyor during voyage ss2012_v06 …