A cross correlation method for chemical profiles in minerals, with an application to zircons of the Kilgore Tuff (USA)

Article Article scientifique Article A cross correlation method for chemical profiles in minerals, with an application to zircons of the Kilgore Tuff (USA) eng 2018 author Probst Line 685997 author Sheldrake Thomas Edward 0000-0002-7192-4273 847421 author Gander Martin Jakob 134664 author Wallace G. author Simpson Guy 653721 author Caricchi Luca 0000-0001-9051-2621 782324 10.1007/s00410-018-1448-3 0010-7999 http://link.springer.com/10.1007/s00410-018-1448-3 Magmatic crystals are characterised by chemical zonation patterns that re ect the thermal and chemical conditions within magma reservoirs in which they grew. Crystals that exhibit similar patterns of zonation are often interpreted to have experi- enced similar conditions of growth. These patterns of zonation may represent continuous processes such as cooling, or more instantaneous events such as magma injection, and provide an insight into the structure and evolution of a magmatic system, both temporally and spatially. We have developed an algorithm that is objectively able to quantify the similarity within and between suites of magmatic crystals from di erent samples. Signi cantly, the algorithm is able to identify correlation that occurs between the interiors of two crystals, but does not extend to the rim, which provides an opportunity to understand the long-term evolution of magmatic systems. We develop and explain the mathematical basis for our algorithm and introduce its application using cathodoluminescence images of zircons from the Kilgore Tu (USA). The results allow us to correlate samples from two di erent outcrops that are found over 80 km apart. Dewey 510 Dewey 550 Swiss National Science Foundation The architecture of subvolcanic reservoirs 162503 CH Project funding European Commission Forecasting the recurrence rate of volcanic eruptions 677493 FEVER EU H2020 25 Section de mathématiques 11 42 Département des sciences de la Terre 154 false 665 Petrology and Volcanology Contributions to Mineralogy and Petrology 173 23 0f1a66c3-e08a-49a8-bd08-ecfe963e91fd Article (Published version) Restricted 10.1007-s00410-018-1448-3.pdf 1867651 application/pdf 427039f7-8c42-47a1-859a-a39f650daf88 Article (Accepted version) Public Pub_7_accepted.pdf 4539197 application/pdf openAccess Faculté des sciences / Section de mathématiques Faculté des sciences / Section des sciences de la Terre et de l'Environnement / Département des sciences de la Terre

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A cross correlation method for chemical profiles in minerals, with an application to zircons of the Kilgore Tuff (USA)	Contributions to Mineralogy and Petrology			2018	686	198

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