- 责任者：Zhang Zhixin (Key Laboratory of Metallogeny and Mineral Assessment ; Ministry of Land and Resources ; Institute of Mineral Resources ; Chinese Academy of Geological Sciences ; Beijing 100037 ; China) ; Yang Fuquan
- 刊名：Geological Review
- 出版年：2011
- 卷期：57(3)
- 关键词：铁矿 ; iron ores ; 花岗岩 ; granite ; 新疆 ; Xinjiang
- 页码：p.350-365
- 图表：11 illus., 2 tables, 51 refs.
- 分类号：1001
- issnNo：ISSN0371-5736
- isbnNo：CN11-1952/P
LA-ICP-MS U-Pb zircon dating on the plagiogranite and biotite plagiogranite from the Wutubulake iron deposit district, southern margin of Altay, Xinjiang, yielded concordant ages of 385.6～2.3 Ma (MSDW=0.13) and 387.7～2. 1 Ma (MSDW=0.23), indicates that the two comagmatic plutons were formed at the beginning of the Middle Devonian. The Wutubulake iron deposit is closely related to the magmatic intrusion, the authors hereby confine the iron deposit formed at the beginning of the Middle Devonian appreciably later than 388~386 Ma. Geochemically, the Wutubulake granites are enriched in Th, Ta, Hf, but depleted in Rb, Ba, K, Sr, P. The REE patterns are characterized by enrichment of LREE[(La/Yb)N=2.46-7.24], with moderately or significantly Eu negative anomalies.