| 云南哀牢山蛇绿岩的矿物学研究 |
| |
| 引用本文： | 凌其聪,程惠兰,沈上越,魏启荣.云南哀牢山蛇绿岩的矿物学研究[J].矿物学报,1999,19(1):56-62. |
| |
| 作者姓名： | 凌其聪 程惠兰 沈上越 魏启荣 |
| |
| 作者单位： | 中国地质大学,武汉,430074 |
| |
| 基金项目： | 地矿部找矿科技攻关项目!(编号 85-0 1 -0 0 3 -0 8)，教育部博士培养基金 |
| |
| 摘 要： | 云南哀牢山蛇绿岩由变橄榄岩、堆晶杂岩、火山熔岩和硅质岩等四个单元组成，其主要矿物有橄榄石，斜方辉石、单斜辉石、尖晶石、斜长石、角闪石、石榴子石等，这些矿物均已不同程度地遭到蚀变、橄榄石、斜方辉石的化学成分显示蛇绿岩中的二辉橄榄岩为原始地幔岩；是石的化学特征表明蛇绿岩中的橄榄岩为深海橄榄岩；单斜辉石的成分反映二辉橄榄岩经历过熔融作用，堆晶杂央才基性熔岩具有火山弧和洋底玄武岩的特征。
|
| 关 键 词： | 蛇绿岩 矿物化学 成因 云南 |
MINERALOGY OF THE OPHIOLITE IN AILAOSHAN,YUNNAN PROVINCE |
| |
| Li Qicong,Cheng Huilan,Sen Shangyue,Wei Qirong.MINERALOGY OF THE OPHIOLITE IN AILAOSHAN,YUNNAN PROVINCE[J].Acta Mineralogica Sinica,1999,19(1):56-62. |
| |
| Authors: | Li Qicong Cheng Huilan Sen Shangyue Wei Qirong |
| |
| Abstract: | The ophiolite in Ailaoshan, Yunnan Province is composed of metamorphic peridot, cumulus crystal complex,volcanic lava and silicalite. The major minerals are olivine, enstenite, clinopyroxene, plagioclase, spinel, hornblende and garnet, and all of those minerals had been altered to different extents. The chemical composition of olivine and enstenite showed that lherzolite was an original mantle rock. The chemical composition of spinel showed that peridotite was formed in deep oceanic settings. The chemical composition of clinopyroxene suggested that lherzolite had experienced partial melting, and the cumulus crystal complex and volcanic lava had the same characteristics as arc volcanic and basalt formed at the oceanic bottom. |
| |
| Keywords: | ophiolite mineral chemistry genesis Ailaoshan Yunnan |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
