Oxygen isotopes reveal crustal contamination and a large, still partially molten magma chamber in Chaîne des Puys (French Massif Central)
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- 作者：Lydé ; ric Francea ; lyde@crpg.cnrs-nancy.fr" class="auth_mail" title="E-mail the corresponding author ; Mickael Demacona ; Andrey A. Gurenkoa ; Danielle Briotb
- 关键词：Magma chamber processes ; Crustal contamination ; Oxygen isotopes ; Trachyte ; Chaî ; ne des Puys ; Zircons
- 刊名：Lithos
- 出版年：2016
- 出版时间：1 September 2016
- 年：2016
- 卷：260
- 期：Complete
- 页码：328-338
- 全文大小：2891 K
文摘
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Silica-rich magmas from Chaîne des Puys (France) are characterized for O isotopes.
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Crustal contamination played a key role in the genesis of those destructive magmas.
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Crustal contamination does not play any role in triggering the studied eruptions.
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Puy de Dôme and Sarcoui volcanoes were fed by a single large magma chamber.
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This magma chamber is likely still partially molten and can contain Si-rich melts.