| 滇西北点苍山蛇绿混杂岩的发现及意义 |
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| 引用本文： | 沙绍礼 尹光侯 敖德恩 段国玺. 滇西北点苍山蛇绿混杂岩的发现及意义[J]. 中国地质, 2002, 29(1): 44-47 |
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| 作者姓名： | 沙绍礼 尹光侯 敖德恩 段国玺 |
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| 作者单位： | 云南省地质矿产勘查开发局第三地质大队,云南大理,671000 |
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| 摘 要： | 点苍山西坡李子坪村分布有较多橄榄岩，围岩是一套中浅变质岩系，其中有斜长角闪岩、变质钠长花岗岩。这些岩石的岩相学、岩石化学及地球化学均显示蛇绿混杂岩特征，暗示点苍山西坡有古特提斯洋壳的残片存在。
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| 关 键 词： | 蛇绿混杂岩 云南 点苍山 岩相学 岩石化学 地球化学 古特提斯洋壳 |
| 文章编号： | 1000-3657(2002)01-0044-04 |
Discovery and significance of ophiolitic melanges at Diancang Mountain in northwestern Yunnan |
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| SHA Shao-li,YIN Guang-hou,AO De''en,DUAN Guo-xi. Discovery and significance of ophiolitic melanges at Diancang Mountain in northwestern Yunnan[J]. Geology in China, 2002, 29(1): 44-47 |
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| Authors: | SHA Shao-li YIN Guang-hou AO De''en DUAN Guo-xi |
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| Affiliation: | No. 3 Geological Survey Party, Yunnan Bureau of Geology and Mineral Exploration and Development, Dali 671000, Yunnan, China |
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| Abstract: | A lot of peridotites are distributed at Liziping Village on the western slope of Diancang Moun-tain.Their country rocks are a medium-and low-grade metamorphic series,consisting of amphibolite and metamorphosed albite granite.The petrography,petrochemistry and geochemistry of these rocks all indicate the features of ophiolitic melanges,suggesting the existence of relict fragments of the Paleo-Tethys oceanic crust on the western slope of Diancang Mountain. |
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| Keywords: | ophiolitic melange Diancang Mountain northwestern Yunnan |
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