| 胥迎红,王晨昇,王向兰.加拿大安大略省奈恩铜镍矿区岩相学、矿相学及稀土元素地球化学特征[J].矿产勘查,2012,3(4):537-544 |
| 加拿大安大略省奈恩铜镍矿区岩相学、矿相学及稀土元素地球化学特征 |
| Petrographic,ore microscope and REE geochemical characteristics of the Narin Cu-Ni mining area,Ontaria,Canada |
| 投稿时间：2011-10-27 |
| DOI： |
| 中文关键词: 加拿大 Coxheath 隐伏斑岩型 铜钼矿 找矿突破 |
| 英文关键词: Narin Cu-Ni deposit gabbro sideronitic texture REE |
| 基金项目: |
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| 中文摘要: |
| 奈恩铜镍矿区受区域上的尼帕辛(Nipissing)岩套控制,与萨德贝里(Sudbury)火成杂岩体无关。Ⅰ、Ⅱ岩体主要由辉长岩相、辉石岩相、闪长岩相组成。区内铜镍矿化主要与辉长岩相有关,受其控制。矿石结构以海绵陨铁结构和水滴状、团斑状结构为主,属于岩浆深部熔离—贯入成矿特征。通过Ⅰ号岩体样品的稀土元素测试分析发现,ΣREE变化大(26.65～241.00),富集LREE且(La/Yb)N 为1.75～10.30,球粒陨石标准化配分曲线属右倾型,这是其深部岩浆充分分异的结果,对成矿非常有利。 |
| 英文摘要: |
| The development of Nairn copper-nickel mining area is under the control of the regional Nipissing suite. Ⅰ,Ⅱ rock complex in the Nairn property mainly is composed of gabbro phase,pyroxenite phase,diorite phase. Copper-nickel mineralization in the Nairn property is mainly related to gabbro phase which dominates the mineralization distribution. Ore texture is composed of sideronitic texture,the teardrop-shaped texture,patchy texture,which suggests that minerals were formed in a complex environment during the process of early deep liquation. Based on the REE analysis of samples from No. 1 complex,it is found that: ΣREE varys largely from 26.65 to 241.00; LREE enriches and ((La/Yb)N varys from 1.75 to 10.30); REE distribution patterns is part of the right-inclined distribution patterns,which is the result of deep magmatic differentiation,which implys greatly potential for mineralization. |
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