Datation ⁴⁰Ar/³⁹Ar des leucogranites sous couverture du complexe plutonique de Charroux–Civray (Vienne)

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• 作者：Alexandre ; Paul ; Le Carlier de Veslud ; Christian ; Cuney ; Michel ; Ruffet ; Gilles ; Virlogeux ; Denis ; et. al.
• 关键词：Variscan leucogranites ; ‘ ; Seuil du Poitou’ ; ⁴⁰Ar/³⁹Ar thermochronology ; France ; leucogranites hercyniens ; seuil du Poitou ; datations ⁴⁰Ar/³⁹Ar ; France ; Gé ; ochimie ; Geochemistry
• 刊名：Comptes Rendus Geoscience
• 出版年：2002
• 出版时间：December, 2002
• 年：2002
• 卷：334
• 期：16
• 页码：1141-1148
• 全文大小：554 K

文摘

⁴⁰Ar/³⁹Ar dating on muscovites, performed on leucogranitic intrusions of Charroux–Civray plutonic complex, points out the existence of two peraluminous magmatic activities, whose equivalents are known in the Limousin: (1) garnet-bearing leucogranitic veins at ca. 340 Ma; (2) a specialised leucogranite associated with W ± Sn deposits at ca 310 Ma. However, available ⁴⁰Ar/³⁹Ar data do not allow us to provide further data concerning the age and the geometry at depth of a large leucogranitic body identified by geophysics. To cite this article: P. Alexandre et al., C. R. Geoscience 334 (2002) 1141–1148.