首页 | 本学科首页   官方微博 | 高级检索  
     检索      

新疆喀拉通克基性杂岩体的地球化学特征及其对矿床成因的约束
引用本文:张招崇,闫升好,陈柏林,何立新,何永胜,周刚.新疆喀拉通克基性杂岩体的地球化学特征及其对矿床成因的约束[J].岩石矿物学杂志,2003,22(3):217-224.
作者姓名:张招崇  闫升好  陈柏林  何立新  何永胜  周刚
作者单位:1. 中国地质科学院地质研究所,北京,100037
2. 中国地质科学院矿产资源研究所,北京,100037
3. 中国地质科学院地质力学研究所,北京,100081
4. 新疆地质矿产局第四地质大队,新疆,阿尔泰,836500
基金项目:国家 30 5资助项目 (2 0 0 1BA6 0 9A_0 7_0 2 ),973资助项目 (2 0 0 1CB40 980 7)
摘    要:对与喀拉通克铜镍硫化物矿床密切相关的基性杂岩体的地球化学研究表明,该岩体以低Ti、亏损Nb和Ta、富集轻稀土元素和大离子亲石元素为特征。结合其同位素特征,提出该岩体的形成与西伯利亚板块和准噶尔板块碰撞后的拉张作用有关,岩浆起源于亏损的软流圈地幔,并在高位岩浆房中遭受了地壳的混染作用,从而导致岩浆中Si的增加,并引起富硫化物矿浆与富硅酸盐岩浆的不混熔作用。

关 键 词:基性杂岩体  地球化学  地壳混染  矿床成因  喀拉通克  新疆
文章编号:1000-6524(2003)03-0217-08
修稿时间:2003年2月21日

Geochemistry of the Kalatongke basic complex in Xinjiang and its constraints on genesis of the deposit
ZHANG Zhao-chong,YAN Sheng-hao,CHEN Bai-lin,HE Li-xin,HE Yong-sheng and ZHOU Gang.Geochemistry of the Kalatongke basic complex in Xinjiang and its constraints on genesis of the deposit[J].Acta Petrologica Et Mineralogica,2003,22(3):217-224.
Authors:ZHANG Zhao-chong  YAN Sheng-hao  CHEN Bai-lin  HE Li-xin  HE Yong-sheng and ZHOU Gang
Institution:ZHANG Zhao-chong 1,YAN Sheng-hao 2,CHEN Bai-lin 3,HE Li-xin 4,HE Yong-sheng 4 and ZHOU Gang 4
Abstract:Abstract: The Kalatongke Ni-Cu sulfide deposit is an important Cu-Ni-rich deposit in western China. Geochemical studies of the basic complex closely associated with the deposit show that it is characterized by low Ti, depletion of Nb or Ta and enrichment of LREE and large lithosphile elements. These features, combined with their isotope geochemistry, have led the authors to believe that the magma occurred under an extensional condition following the collision between the Siberian plate and the Junggar plate, and was derived from the depleted asthenospheric mantle, contaminated however by crustal materials within high-level magma chamber. Thus, the addition of crustal silicate material was sufficient to trigger the immiscibility between the sulfides-rich liquid and the silicate-rich liquid.
Keywords:basic complex  geochemistry  crustal contamination  genesis of deposit  Kalatongke  Xinjiang
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《岩石矿物学杂志》浏览原始摘要信息
点击此处可从《岩石矿物学杂志》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号