Oxygen isotope fractionation factors involving cassiterite (SnO<sub>2</sub>): II. determination by direct isotope exchange between cassiterite and calcite期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Oxygen isotope fractionation factors involving cassiterite (SnO₂): II. determination by direct isotope exchange between cassiterite and calcite

Authors:	Guixing Hu Robert N Clayton Veniamin B Polyakov

Institution:	¹ Enrico Fermi Institute, University of Chicago, Chicago, IL 60037, USA ² Department of Chemistry, University of Chicago, Chicago, IL 60637, USA ³ Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637, USA ⁴ V. I. Vernadsky Institute of Geochemistry and Analytical Chemistry, Russian Academy of Sciences, Kosygin Street 19, Moscow, 119991, Russia

Abstract:	Direct oxygen isotope fractionation between cassiterite and calcite has been investigated experimentally at 15 kbar with temperature ranging from 800 to 1000°C. Combined with the quartz-calcite fractionation measured with the same technique (Clayton et al., 1989), the calcite-cassiterite and quartz-cassiterite oxygen isotope fractionations can be expressed as:

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