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Zircon behaviour in deeply subducted rocks

Daniela Rubatto and Joerg Hermann
Zircon behaviour in deeply subducted rocks
Elements (February 2007) 3 (1): 31-35

Abstract

Zircon is of fundamental importance in the investigation of deeply subducted crustal rocks in which it is a trace constituent. Tiny mineral inclusions within zircon may be the only indicators that rocks were subducted to a depth of up to 150 km. Because zircon is resistant to physical and chemical changes, it preserves stages of the subduction and exhumation history within submillimetre-size grains. Advanced in situ techniques allow us to date zircon domains and to determine their trace element composition. We can thus acquire a detailed knowledge of the temperature-pressure-time paths that these extraordinary rocks have experienced. Zircon studies provide evidence that subduction and exhumation act at plate tectonic speeds of 1-3 cm/year.


ISSN: 1811-5209
Serial Title: Elements
Serial Volume: 3
Serial Issue: 1
Title: Zircon behaviour in deeply subducted rocks
Affiliation: Australian National University, Research School of Earth Sciences, Canberra, A.C.T., Australia
Pages: 31-35
Published: 200702
Text Language: English
Publisher: Mineralogical Society of America and Mineralogical Society of Great Britain and Ireland and Mineralogical Association of Canada and Geochemical Society and Clay Minerals Society, International
References: 24
Accession Number: 2007-094587
Categories: Solid-earth geophysicsGeochronology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus.
Country of Publication: International
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute.
Update Code: 200720
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