40Ar/39Ar dating of leucogranites in the sediment-covered Charroux-Civray complex (Vienne)

被引：12

作者：

Alexandre, P

de Veslud, CL

Cuney, M

Ruffet, G

Virlogeux, D

Cheilletz, A

机构：

[1] CNRS, CRPG, F-54501 Vandoeuvre Les Nancy, France

[2] INPL, ENSG, F-54501 Vandoeuvre Les Nancy, France

[3] Univ Henri Poincare, UMR G2R, Cregu, F-54506 Vandoeuvre Les Nancy, France

[4] Univ Rennes 1, Geosci Rennes, F-35042 Rennes, France

[5] Andra, F-92298 Chatenay Malabry, France

来源：

COMPTES RENDUS GEOSCIENCE | 2002年 / 334卷 / 16期

关键词：

variscan leucogranites; 'Seuil du Poitou'; 40Ar/39Ar thermochronology; France;

D O I：

10.1016/S1631-0713(02)01859-X

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

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) gamet-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. (C) 2002 Academie des sciences / Editions scientifiques et medicales Elsevier SAS.

引用

页码：1141 / 1148

页数：8

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