东北大学学报（自然科学版）

东北大学学报:自然科学版 ›› 2014, Vol. 35 ›› Issue (7): 1039-1042.DOI: 10.12068/j.issn.1005-3026.2014.07.028

• 资源与土木工程 • 上一篇    下一篇

黑龙江鹿鸣钼矿床成矿岩体岩石地球化学特征

张春鹏1，王恩德1，毕中伟2，陈江2   

  1. (1. 东北大学 资源与土木工程学院， 辽宁 沈阳110819； 2. 沈阳地质矿产研究所， 辽宁 沈阳110034)
  • 收稿日期:2013-09-04 修回日期:2013-09-04 出版日期:2014-07-15 发布日期:2014-04-11
  • 通讯作者: 张春鹏
  • 作者简介:张春鹏(1982-)，男，吉林四平人，东北大学博士研究生；王恩德(1957-)，男，辽宁盖州人，东北大学教授，博士生导师.
  • 基金资助:
    教育部高等学校博士学科点专项科研基金资助项目(20110042110032)；中国地质调查局省部合作项目(1212011085236)；中国地质调查局矿产地质调查项目(1212011120687).

Geochemical Characteristics of Mineralization Rock from the Luming Molybdenum Deposit in Heilongjiang Province

ZHANG Chunpeng1， WANG Ende1， BI Zhongwei2， CHEN Jiang2   

  1. 1. School of Resources & Civil Engineering， Northeastern University， Shenyang 110819， China; 2. Shenyang Institute of Geology and Mineral Resources， Shenyang 110034， China.
  • Received:2013-09-04 Revised:2013-09-04 Online:2014-07-15 Published:2014-04-11
  • Contact: ZHANG Chunpeng
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摘要： 鹿鸣钼矿床产于燕山早期二长花岗岩-花岗斑岩岩体中，对其岩石学和地球化学特征进行分析.结果表明:SiO2质量分数在6384%~7132%之间，全碱质量分数为69%~84%，w(K2O)/w(Na2O)平均为137.岩体大部分属于偏铝-过铝质高钾钙碱性花岗岩.稀土元素总量值高，轻稀土富集，稀土分配模式为右倾曲线，同时Eu出现弱到中等程度的亏损.研究认为与成矿有关的二长花岗岩-花岗斑岩的岩浆属壳源岩浆演化形成的A2型花岗岩岩石组合，其形成背景应属于陆-陆碰撞之后的伸展体系.

关键词: 鹿鸣钼矿, A2型花岗岩, 地球化学, 燕山早期

Abstract: The Luming molybdenum deposit occurs in early Yanshanian pluton consisting of adamellite and granite porphyry. The data of petrography and geochemistry show that the SiO2 content varies from 6384% to 7132%， total alkali content varies from 69% to 84%， and w(K2O)/w(Na2O) has an average value of 137. Most of the rocks belong to metaluminousperaluminous high potassium calcallkaline granite. The rocks have high total REE content. LREE is relatively enriched. The chondritenomalized REE patterns show that the curves of REE are right dip types with slightlymoderate negative Eu anomalies. The adamellite and granite porphyry magma which relates to mineralization belong to A2 type granite formed by the crust material source magma evolution. It is inferred that the pluton was formed by the conversion from a postcollisional environment to an extensional environment.

Key words: Luming molybdenum deposit, A2 type granites, geochemistry, early Yanshanian

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