广西师范大学学报（自然科学版） ›› 2012, Vol. 30 ›› Issue (1): 115-124.

• • 上一篇    

新疆大型蛭石矿床综合成矿模式及找矿指示意义

周可法1,2, 孙宝生3, 王金林2, 张楠楠2, 张海波2, 汪玮2, 廖世斌2   

  1. 1.北京大学造山带与地壳演化重点实验室,北京100871;
    2.中国科学院新疆生态与地理研究所,新疆乌鲁木齐830011;
    3.新疆大学地质与勘查工程学院,新疆乌鲁木齐830046
  • 收稿日期:2011-11-30 出版日期:2012-01-20 发布日期:2018-12-03
  • 通讯作者: 周可法(1972—),男,河南南阳人,中国科学院新疆生态与地理研究所研究员,博士。E-mail:zhoukf@ms.xjb.ac.cn
  • 基金资助:
    国家科技支撑计划资助项目(2011BAB06B08-01);国家自然科学基金-新疆联合基金资助项目(U1129302);国家自然科学基金资助项目(40871028)

Ore-Forming Model of Super-large Vermiculite Ore Deposits in Xinjiang,China

ZHOU Ke-fa1,2, SUN Bao-sheng3, WANG Jin-lin2, ZHANG Nan-nan2, ZHANG Hai-bo2, WANG Wei2, LIAO Shi-bin2   

  1. 1.Key Laboratory of Orogen and Crust Evolution,Peking University,Beijing 100871,China;
    2.Xinjiang ResearchCenter for Mineral Resources,Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences,UrumqiXinjiang 830011,China;
    3.College of Geology and Exploration Engineering,Xinjiang University,Urumqi Xinjiang 830046,China
  • Received:2011-11-30 Online:2012-01-20 Published:2018-12-03

摘要： 新疆尉犁且干布拉克蛭石矿床是中国最大、世界上为数不多的超大型蛭石矿床之一。通过与世界同类矿床对比研究发现,尉犁且干布拉克超大型蛭石矿床无论是含矿杂岩体的岩石组合类型,还是形成的矿物系列都与世界同类矿床不尽一致,世界上产有超大型蛭石矿床的杂岩体均发育有典型的过碱性岩类,如霓霞岩、磷霞岩、霞石正长岩类等,但且干布拉克杂岩体不含典型的过碱性岩类,矿床与富碱质超基性岩－碳酸岩有关。本文通过野外和室内研究,对含矿杂岩体的区域地质背景、岩体地质及含矿性特征、岩石化学、微量元素、稀土元素、稳定和放射性同位素进行研究,进而建立该矿床的成岩成矿模式,即地幔交代、裂谷作用、岩浆活动、热液蚀变和表生作用,对进一步在塔里木周边寻找和研究该类矿床具有理论指导与实践价值。

关键词: 新疆尉犁, 超大型蛭石矿床, 成矿模式

Abstract: The Yuli vermiculite deposit is the largest vermiculite deposit in China and also one of the Super-large vermiculite deposits in theworld.Through comparative studies on similar deposits in other areas of the word,other Super-Large vermiculite deposits are characterized by existence of associated peralkaline rocks,e.g.ijolite,urtite and nepheline syenite etc.,indicating that vermiculite mineralization are linked to peralkaline magmatism.However,the Yuli vermiculite deposit has different rock type and mineral series.Because ofabsence of such kind of peralkaline rocks,the Yuli vermiculite deposit is suggested to have a close relation with alkali-rich ultramafic rocks and carbonatites.Based on detailed studies on regional geological background,rock,petrochemistry and geochemistry,a petrogenic and metallogenic model of this deposit is established.The metallogenetic process is followed by mantle metasomatism,rifting,magmatic activity,hydrothermal alteration and supergene weathering.This model has both profound theoretical and practical significance to survey new vermiculite deposits around the Tarim Basin.

Key words: Yuli,Xinjiang,China, super-large vermiculite deposits, ore-forming model

中图分类号: 

  • P571
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