The structure of haplobasaltic glasses investigated using X-ray absorption near edge structure (XANES) spectroscopy at the Si, Al, Mg, and O K-edges and Ca, Si, and Al L2,3-edges
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- 作者：Benjamin J.A. Moultona ; bja.moulton@utoronto.ca" class="auth_mail" title="E-mail the corresponding author ; Grant S. Hendersona ; Camille Sonnevilleb ; Cedrick O'Shaughnessya ; Lucia Zuinc ; Tom Regierc ; Dominique de Lignyd
- 关键词：Haplobasalt ; Anorthite ; Diopside ; X-ray absorption near-edge structure ; Glass structure ; Melts
- 刊名：Chemical Geology
- 出版年：2016
- 出版时间：20 January 2016
- 年：2016
- 卷：420
- 期：Complete
- 页码：213-230
- 全文大小：1848 K
文摘
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We investigated the XANES edge(s) for every element in the diopside–anorthite system.
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Both Mg and Ca decrease their coordination between the diopside and anorthite end members.
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Silicon shows a diverse behavior in the bond length, inter-tetrahedral angle and oxygen neighbors.
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Al results suggest constant changes in the inter-tetrahedral angle across the join.
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The links between the chemical structure and the bulk properties reveal complex interplay.