• 责任者：Liu Changfeng (Institute of Geological Survey ; China University of Geosciences ; Beijing 100083 ; China) ; Zhou Zhiguang
• 刊名：Journal of Mineralogy and Petrology
• 出版年：2011
• 卷期：31(4)
• 关键词：侵入体 ; intrusions ; 内蒙古 ; Inner Mongolia
• 页码：p.34-43
• 图表：6 illus., 2 tables, 27 refs.
• 分类号：0801
• 出版序号：20122305
• issnNo：ISSN1001-6872
• isbnNo：CN51-1143/TD

Wuertagaolemiao granitoid in the Siziwangqi area of Inner Mongolia tectonically belongs to the Xing-Meng orogenic belt and south of the Erdaojing-Chaganwula-Honggeer suture zone. The granitoid is predominantly composed of hornblende-syenite, monzogranite and syenogranite. LA-ICP-MS U-Pb zircon dating and petrochemical analysis are used to study and understand its formation age and nature. As a result, zircons from hornblende-syenite, monzogranite, syenogranite, yield U-Pb ages of (271±18) Ma (MSWD=4.1), (256 ±3) Ma (MSWD=2.7), (261±2) Ma (MSWD=1.2). Petrochemical data indicate that monzogranite and syenogranite belong to calc-alkaline, while hornblende-syenite to alkaline series.oft-com:office:office" />