Lithium Isotopic Characteristics of Ore-Bearing and Barren Intrusions in the Jinshajiang-Honghe Alkali-Rich Intrusive Belt
详细信息
- 责任者：Zhou Ting (State Key Laboratory of Ore Deposit Geochemistry ; Institute of Geochemistry ; Chinese Academy of Sciences ; Guiyang 550002 ; China) ; Bi Xianwu
- 刊名：Acta Mineralogica Sinica
- 出版年：2013
- 卷期：33(2)
- 页码：p.221-230
- issnNo：ISSN1000-4734
- isbnNo：CN52-1045/P
摘要
In this paper, lithium isotope geochemistry was used to study ore-bearing Wandongshan intrusion and ore-barren Jianchuanbei intrusion in Jinshajiang-Honghe alkaline-rich intrusive belt. The results show that the Li/Yb ratio ranges of Wandongshan intrusion and Jianchuanbei intrusion are 7.20~9.58 and 11.18~20.0, respectively.δ7Li values of Wandongshan intrusion and Jianchuanbei intrusion are +0.3‰~+6.2‰ and -6.5‰~+0.1‰, respectively. This result may due to the different degrees of slab-derived fluid metasomatism between ore-bearing Wandongshan intrusion and ore-barren Jianchuanbei intrusion.bidi-font-size: 12.0pt">