文章基本信息

标题：Th-U-total Pb timing constraints on the emplacement of the granitoid pluton of Stolpen, Germany
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作者：Katarzyna Lisowiec ; Bartosz Budzyń ; Ewa Słaby 等
期刊名称：Acta geologica Polonica
印刷版ISSN：0001-5709
出版年度：2014
卷号：64
期号：4
页码：457-472
语种：English
出版社：Institute of Geology, University of Warsaw
摘要：Monazite from the Stolpen monzogranite (SE Germany) was studied to constrain the Th-U-total Pb age of pluton formation. Monazite grains demonstrate subtle to distinct patchy zoning related to slight compositional variations. Textural and compositional characteristics indicate that the monazite formed in a single magmatic event in a slightly heterogeneous system, and was only weakly affected by secondary alteration, which did not disturb the Th-U-Pb system. Chemical dating of the monazite gave a consistent age of 299 ± 1.7 Ma. The current study presents the first geochronological data for the Stolpen granite. It provides evidence that Stolpen is the youngest Variscan granitic intrusion in the Lusatian Granodiorite Complex and indicates that magmatic activity related to post-collisional extension in this region lasted at least 5my longer than previously assumed.
关键词：Monazite;Th-U-Pb chemical dating;Lusatian Granodiorite Complex;Stolpen Granite;Variscan granitoids.