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dc.contributor.authorLoader, ML
dc.contributor.authorWilkinson, J
dc.contributor.authorArmstrong, R
dc.identifier.citationMatthew A. Loader, Jamie J. Wilkinson, Robin N. Armstrong, The effect of titanite crystallisation on Eu and Ce anomalies in zircon and its implications for the assessment of porphyry Cu deposit fertility, Earth and Planetary Science Letters, Volume 472, 2017, Pages 107-119, ISSN 0012-821X,
dc.description.abstractThe redox sensitivity of Ce and Eu anomalies in zircon has been clearly demonstrated by experimental studies, and these may represent an important tool in the exploration for porphyry Cu deposits which are thought to be derived from oxidised magmas. These deposits are significant because they are the source of much of the world's copper and almost all of the molybdenum and rhenium, key elements in many modern technologies. However, Ce and Eu anomalies in zircon are also affected by the co-crystallisation of REE bearing phases, such as titanite. Here, we report the trace element chemistry of zircons from titanite-bearing intrusions associated with mineralisation at the world class Oyu Tolgoi porphyry Cu–Au deposit (Mongolia). Based on these data, we suggest that neither zircon Eu/Eu⁎, nor Ce4+/Ce3+ are robust proxies for melt redox conditions, because they are both too strongly dependent on melt REE concentrations, which are usually poorly constrained and controlled by the crystallisation of titanite and other REE-bearing phases. In spite of this, Eu/Eu⁎ can broadly distinguish between fertile and barren systems, so may still be an indicator of porphyry magma fertility, and a useful tool for exploration.en_US
dc.titleThe effect of titanite crystallisation on Eu and Ce anomalies in zircon and its implications for the assessment of porphyry Cu deposit fertilityen_US
dc.typeJournal Articleen_US
dc.identifier.journalEarth and Planetary Science Lettersen_US
dc.identifier.startpage107 - 119en_US
dc.internal.reviewer-notePlease approve with embargo to 31 May 2019 and CC-BY-NC-ND. ACH 14.8.18en
pubs.organisational-group/Natural History Museum
pubs.organisational-group/Natural History Museum/Science Group
pubs.organisational-group/Natural History Museum/Science Group/Earth Sciences
pubs.organisational-group/Natural History Museum/Science Group/Earth Sciences/Economic and Environmental Earth Sciences
pubs.organisational-group/Natural History Museum/Science Group/Functional groups
pubs.organisational-group/Natural History Museum/Science Group/Functional groups/Research
dc.embargoNot knownen_US
elements.import.authorLoader, MAen_US
elements.import.authorWilkinson, JJen_US
elements.import.authorArmstrong, RNen_US
dc.description.nhm©2017 Elsevier B.V. All rights reserved. The attached document is the authors’ final accepted version of the journal article. This manuscript version is made available under the CC-BY-NC-ND 4.0 license You are advised to consult the publisher’s version if you wish to cite from it.en_US
dc.subject.nhmporphyry Cuen_US
dc.subject.nhmrare earth elementsen_US
dc.subject.nhmeconomic geologyen_US

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