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Improved laser ablation U‐Pb zircon geochronology through robust downhole fractionation correction
Elemental fractionation effects during analysis are the most significant impediment to obtaining precise and accurate U‐Pb ages by laser ablation ICPMS. Several methods have been proposed to minimize
Precise U–Pb titanite age constraints on the emplacement of the Bushveld Complex, South Africa
The c. 2.06 Ga Bushveld Complex intrudes the Transvaal Supergroup, South Africa. Calcsilicate xenoliths within the mafic phase of the Bushveld Complex (Rustenburg Layered Suite, or RLS) preserve
Late Holocene drought responsible for the collapse of Old World civilizations is recorded in an Italian cave flowstone
A severe drought in parts of low-latitude northeastern Africa and southwestern Asia ∼4200 yr ago caused major disruption to ancient civilizations. Stable isotope, trace element, and organic
Lu–Hf and Sm–Nd isotope systems in zircon
As a significant carrier of uranium, thorium and the rare earth elements (REEs) at ppm level, and hafnium at the percent level, zircon hosts a remarkable number of long-lived radioactive isotopes and
In situ Sr-isotope analysis of carbonates by LA-MC-ICP-MS: interference corrections, high spatial resolution and an example from otolith studies
In situ Sr-isotope analysis by laser ablation multi-collector ICP-MS is a potentially powerful tracer technique with widespread application to many fields of study. The usefulness of the method,
Cretaceous felsic volcanism in New Zealand and Lord Howe Rise (Zealandia) as a precursor to final Gondwana break-up
Abstract We report new, highly precise, U–Pb and Ar/Ar ages for seven Cretaceous rhyolites, tuffs and granites from across Zealandia spanning a 30 Ma period from arc magmatism to continental
Evidence for Obliquity Forcing of Glacial Termination II
TLDR
A new speleothem-based North Atlantic marine chronology is presented that shows that the penultimate glacial termination commenced 141,000 ± 2500 years before the present, too early to be explained by Northern Hemisphere summer insolation but consistent with changes in Earth’s obliquity.
The Anatomy of an Andesite Volcano: a Time–Stratigraphic Study of Andesite Petrogenesis and Crustal Evolution at Ruapehu Volcano, New Zealand
s of the 18th Annual V. M. Goldschmidt Conference, Vancouver, Canada, July, 2008. Geochimica et Cosmochimica Acta, Special Supplement 72, A529. Lepage, L. D. (2003). ILMAT: an Excel worksheet for
Isotopic and Elemental Imaging of Geological Materials by Laser Ablation Inductively Coupled Plasma‐Mass Spectrometry
Laser ablation ICP‐MS represents a promising new development for the acquisition of elemental and isotopic images from a variety of different materials. Compared to existing methods for imaging, it
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