地质通报2017，Vol.36Issue(9)：1514-1524,11.
内蒙古额济纳旗涌珠泉海西期侵入岩年代学特征及构造意义
Chronological characteristics and tectonic significance of Her-cynian intrusive rocks at Yongzhuquan, Ejina Banner, Inner Mongolia
摘要
Abstract
The Yongzhuquan intrusive rocks to the north of the Yueyashan tectonic melange zone in Inner Mongolia constitute a large intrusive body. 1:50000 regional geological survey shows that the rock mass is decomposed into granodiorite, monzonitic gran-ite and syenogranite. The zircon U-Pb age of the monzogranite is 330.7±2.9 Ma, suggesting Early Carboniferous and indicating that the Late Paleozoic magmatism in the Beishan area was very active. Through the analysis of rock chemistry and geochemical character-istics, the authors hold that it was formed in a tension tectonic setting and that the tectonic setting of the Beishan area in the Early Carboniferous entered into a stretching environment. This conclusion is of great significance for the study of the crustal evolution of Late Paleozoic in Beishan area.关键词
北山/涌珠泉/花岗岩/地球化学特征/锆石U-Pb年龄/早石炭世/伸展拉张环境Key words
Beishan area/Yongzhuquan/granite/geochemical characteristics/zircon U-Pb age/Early Carboniferous/stretching envi-ronment分类
天文与地球科学引用本文复制引用
王德强,薛鹏远,张正平,潘志民,梁国庆,刘广..内蒙古额济纳旗涌珠泉海西期侵入岩年代学特征及构造意义[J].地质通报,2017,36(9):1514-1524,11.基金项目
中国地质调查局项目《内蒙古1:5万旱山、小尘包、望京山、涌珠泉幅区域地质矿产调查》(编号:212011220463) （编号:212011220463）
