| 李甲平,汪立今,任伟,朱海宾.新疆东天山天宇、白石泉杂岩体岩石学、矿物学特征对比研究[J].地质找矿论丛,2010,25(2):134-140 |
| 新疆东天山天宇、白石泉杂岩体岩石学、矿物学特征对比研究 |
| PETROLOGICAL AND MINERALOGICAL CHARACTERISTICS OF TIANYU AND BAISHIQUAN MAFIC-ULTRAMAFIC COMPLEXES IN THE MIDDLE TIANSHAN OF XINJIANG |
| 投稿时间：2009-03-03 |
| DOI：10.6053/j.issn.1001-1412.2010.2. 008 |
| 中文关键词: 镁铁-超镁铁质杂岩体 岩石学特征 矿物学特征 新疆 |
| 英文关键词:mafic-ultramafic complex petrological characteristics mineralogical characteristics xinjiang |
| 基金项目:新疆维吾尔自治区高校科研计划科学研究重点资助项目(XJEDU2007I09);新疆维吾尔自治区重点学科建设"矿产普查及勘探"科研基金联合资助 |
| 作者 | 单位 | E-mail | | 李甲平 | 新疆大学, 地质与勘查工程学院, 乌鲁木齐, 830046 | lw668w@yahoo.com.cn | | 汪立今 | 新疆大学, 地质与勘查工程学院, 乌鲁木齐, 830046 | | | 任伟 | 新疆大学, 地质与勘查工程学院, 乌鲁木齐, 830046 | | | 朱海宾 | 新疆大学, 地质与勘查工程学院, 乌鲁木齐, 830046 | |
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| 中文摘要: |
| 天宇和白石泉铜镍矿区含矿镁铁-超镁铁质杂岩体是东疆铜镍成矿带的重要组成部分。天宇矿区杂岩体以角闪辉长岩、角闪单辉橄榄岩、橄榄辉石岩、二辉辉石岩为主;白石泉矿区杂岩体则以辉石闪长岩、角闪辉长岩、橄榄辉石岩、辉石辉长岩、辉石橄榄岩、橄长岩为主;天宇矿区含矿超基性岩中SiO2,Al2O3,CaO,K2O,Na2O的质量分数比白石泉岩体低,Fe2O3,MgO相对较高;两个杂岩体的主要造岩矿物均以橄榄石、辉石、斜长石为主;铜镍矿石的矿物组成都较简单,金属矿物种类基本一致;两个杂岩体基性-超基性岩的成分接近原始岩浆,均来自于地幔,均属含铜镍中等的镁铁质岩石。 |
| 英文摘要: |
| Tianyu and Baishiquan rock bodies are the two important ore-bearing mafic-ultramafic intrusive complexes at Cu-Ni ore belt in the east Xinjiang area.Tianyu complex is dominated by hornblende gabbro,hornblende-clinopyroxene peridopdite,olivine pyroxenite and lherzolite,and Baishquan complex by pyroxene diorite,hornblende gabbro,olivine pyroxenite,pyroxenite gabbro,pyroxene peridodite and troctolite Tianyu complex is higher than Baishquan complex in SiO2,Al2O3,CaO,K2O,Na2O and the later is relatively higher in Fe2O3,MgO.Mineralogically,the two complexes are mainly composed of olivine,pyroxene,plagioclase and Cu-Ni ore is simple,and the metal minerals are basically the same.Composition of the two complexes are similar to the original magma and derived from mantle.They belong to moderate Cu-Ni-content mafic rocks. |
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