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Mass-spectrometric mining of Hadean zircons by automated SHRIMP multi-collector and single-collector U/Pb zircon age dating: The first 100,000 grains

Holden, Peter; Lanc, Peter; Ireland, Trevor; Harrison, Timothy; Foster, John; Bruce, Zane


The identification and retrieval of a large population of ancient zircons (>4 Ga; Hadean) is of utmost priority if models of the early evolution of Earth are to be rigorously tested. We have developed a rapid and accurate U-Pb zircon age determination protocol utilizing a fully automated multi-collector ion microprobe, the ANU SHRIMP II, to screen and date these zircons. Unattended data acquisition relies on the calibration of a digitized sample map to the Sensitive High Resolution Ion...[Show more]

CollectionsANU Research Publications
Date published: 2009
Type: Journal article
Source: International Journal of Mass Spectrometry
DOI: 10.1016/j.ijms.2009.06.007


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