[HTML][HTML] Reconciling the Cretaceous breakup and demise of the Phoenix Plate with East Gondwana orogenesis in New Zealand
SHA van de Lagemaat, PJJ Kamp, LM Boschman… - Earth-Science …, 2023 - Elsevier
Following hundreds of millions of years of subduction in all circum-Pacific margins, the
Pacific Plate started to share a mid-ocean ridge connection with continental Antarctica …
Pacific Plate started to share a mid-ocean ridge connection with continental Antarctica …
The Dunedin Volcanic Group and a revised model for Zealandia's alkaline intraplate volcanism
The intraplate rocks of the Dunedin Volcanic Group (DVG) in New Zealand's South Island
erupted in two discrete areas between 25 and 21 Ma before becoming distributed over> …
erupted in two discrete areas between 25 and 21 Ma before becoming distributed over> …
Two-phase Cretaceous–Paleocene rifting in the Taranaki Basin region, New Zealand; implications for Gondwana break-up
The break-up of Gondwana resulted in extension of New Zealand continental crust during
the Cretaceous–Paleocene. Offshore the geometry and rift history are well imaged by new …
the Cretaceous–Paleocene. Offshore the geometry and rift history are well imaged by new …
Reconnaissance basement geology and tectonics of South Zealandia
We report new U‐Pb zircon ages, geochemical and isotopic data for Mesozoic igneous
rocks, and new seismic interpretations of mostly submerged South Zealandia (1.5 Mkm2) …
rocks, and new seismic interpretations of mostly submerged South Zealandia (1.5 Mkm2) …
Subduction-related petrogenesis of Late Archean calc-alkaline lamprophyres in the Yilgarn Craton (Western Australia)
We present a comprehensive petrographic, mineralogical and geochemical study of calc-
alkaline lamprophyres (CAL) from the Archean Yilgarn Craton, Western Australia. Previous …
alkaline lamprophyres (CAL) from the Archean Yilgarn Craton, Western Australia. Previous …
Late Cretaceous oceanic plate reorganization and the breakup of Zealandia and Gondwana
N Mortimer, P van den Bogaard, K Hoernle, C Timm… - Gondwana …, 2019 - Elsevier
Abstract New 40 Ar/39 Ar ages of igneous rocks clarify the nature, timing and rates of
movement of the oceanic Pacific, Phoenix, Farallon and Hikurangi plates against Gondwana …
movement of the oceanic Pacific, Phoenix, Farallon and Hikurangi plates against Gondwana …
Peridotitic lithosphere metasomatized by volatile-bearing melts, and its association with intraplate alkaline HIMU-like magmatism
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 …
like alkaline intraplate basalts is investigated using a suite of peridotite xenoliths from New …
Platinum-group element and Au geochemistry of Late Archean to Proterozoic calc-alkaline and alkaline magmas in the Yilgarn Craton, Western Australia
Abstract The Yilgarn Craton of Western Australia is one of the largest Archean cratons in the
world and is well-known for its metal endowment. In order to provide new insights into its …
world and is well-known for its metal endowment. In order to provide new insights into its …
Intraplate basalt alkalinity modulated by a lithospheric mantle filter at the Dunedin Volcano (New Zealand)
Systematic variations in the crystal cargo and whole-rock isotopic compositions of mantle-
derived basalts in the intraplate Dunedin Volcano (New Zealand) indicate the influence of a …
derived basalts in the intraplate Dunedin Volcano (New Zealand) indicate the influence of a …
Mantle depletion and metasomatism recorded in orthopyroxene in highly depleted peridotites
Although trace element concentrations in clinopyroxene serve as a useful tool for assessing
the depletion and enrichment history of mantle peridotites, this is not applicable for …
the depletion and enrichment history of mantle peridotites, this is not applicable for …