Browsing by Author "Evans, Noreen J."
Now showing items 1-5 of 5
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Emplacement age and thermal footprint of the diamondiferous Ellendale E9 lamproite pipe, Western Australia
(Springer-Verlag, 2013)The diamondiferous Ellendale 9 (E9) pipe is a funnel-shaped maar-diatreme volcano consisting of inward-dipping tuff sequences intruded by lamproite plugs and dykes. The host rocks for the E9 pipe are Permian sandstones. ... -
Re-anchoring the late Pleistocene tephrochronology of New Zealand based on concordant radiocarbon ages and combined ²³⁸U/ ²³ºTh disequilibrium and (U-Th)/He zircon ages
(Elsevier, 2012)The caldera-forming Rotoiti eruption from Okataina volcano was one of the largest rhyolite events of the last 100ka in the Taupo Volcanic Zone, New Zealand. Its associated widespread tephra layer (Rotoehu tephra) is a ... -
Sub-millennial eruptive recurrence in the silicic Mangaone Subgroup tephra sequence, New Zealand, from Bayesian modelling of zircon double-dating and radiocarbon ages
(Elsevier, 2020)Accurate dating of young (<1 Ma) volcanic eruptions has long been a challenge for modern geochronology given the scarcity of datable mineral phases and low quantities of radiogenic daughter products. Combined U-Th-Pb and ... -
The tetrad effect and geochemistry of apatite from the Altay Koktokay No. 3 pegmatite, Xinjiang, China: implications for pegmatite petrogenesis
(Springer, 2013)In order to better constrain the evolution and petrogenesis of pegmatite, geochemical analysis was conducted on a suite of apatite crystals from the Altay Koktokay No. 3 pegmatite, Xinjiang, China and from the granitic and ... -
(U–Th)/He chronology of the Robe River channel iron deposits, Hamersley Province, Western Australia
(Elsevier, 2013)There have been some news releases claiming that Professor Henle in Germany has found the chemical identity of UMF, and that in future chemical analysis will be used instead of assays of antibacterial activity to indicate ...
