Columbia超大陆汇聚在扬子陆块西南缘的响应——来自热液石英脉锆石U-Pb年龄的证据

基金项目:

云南省1∶5万撒马基幅、因民幅、贵城幅、舒姑幅区域地质调查 D201905

详细信息

Response of Columbia supercontinent convergence to the southwestern margin of Yangtze Block: Evidence from zircon U-Pb age of hydrothermal quartz vein

1.
Yunnan Institute of Geological Survey, Kunming 650216, Yunnan, China
2.
School of Earth Science and Resources, China University of Geosciences, Beijing 100083, China
3.
Key Laboratory of Sanjiang Metallogeny and Resources Exploration and Utilization, MNR, Kunming, 650051, Yunnan, China

图 1 采样位置、锆石阴极发光图像及锆石测年谐和图

Ar₂e-元江群鹅头厂组；Pt₁a-易门群阿不都组；Pt₁l-易门群罗洼垤组；Pt₁ls-易门群亮山组；Pt₁y-易门群永靖哨组；Pt₁x-易门群西山村组；Pt₁s-易门群杉木箐组；a-总谐和图；b-岩浆年龄谐和图；c-锆石阴极发光图像；d-采样剖面图；e-大地构造位置图；f-研究区地质简图

Figure 1. Sampling sites, CL images and zircon dating concordia diagram of hydrothermal quartz vein

Ar₂e-Etouchang formation of Yuanjiang group; Pt₁a-Abudu formation of Yimen group; Pt₁l-Luowadie formation of Yimen group; Pt₁ls-Liangshan formation of Yimen group; Pt₁y-Yongjingshao formation of Yimen group; Pt₁x-Xishancun formation of Yimen group; Pt₁s-Shanmuqing formation of Yimen group; a-General harmonic map; b-Harmonic map of magma age; c-CL images; d-Sectional map of samples; e-Geotectonic location map; f-Geological sketch map of the research area

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表 1 云南易门地区热液石英脉样品锆石U-Pb LA-ICP-MS同位素分析数据

Table 1 LA-ICP-MS zircon U-Pb age data of hydrothermal quartz vein in the Yimen area, Yunnan

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