| 滇西南孟连新建二叠系火居组沉积相与时代 |
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| 引用本文： | 李志明.滇西南孟连新建二叠系火居组沉积相与时代[J].云南地质,2010,29(2):182-184. |
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| 作者姓名： | 李志明 |
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| 作者单位： | 云南省地质矿产勘查院玉溪地质矿产所,云南,玉溪,653100 |
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| 摘 要： | 孟连地区位于三江褶皱系西南部分,晚古生代冈瓦纳与扬子板块碰撞缝合带。该带发育一套由超基性-中基性熔岩、火山碎屑岩和砂岩、泥岩与硅质岩组成的岩石组合。首次在硅质岩中发现早二叠世放射虫,新建火居组,属次深海相环境。讨论其时代及沉积环境。
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| 关 键 词： | 次深海环境 板内裂谷 斜坡浊流相 早二叠世放射虫 滇西南孟连 |
THE SEDIMENTATION FACIES AND TIME OF PERMIAN HUOJU FORMATION IN MENGLIAN,SOUTHWEST YUNNAN |
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| LI Zhi-ming.THE SEDIMENTATION FACIES AND TIME OF PERMIAN HUOJU FORMATION IN MENGLIAN,SOUTHWEST YUNNAN[J].Yunnan Geology,2010,29(2):182-184. |
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| Authors: | LI Zhi-ming |
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| Institution: | LI Zhi-ming(Yuxi Institute of Geology ＆ Mineral Resources,Yunnan Exploration Institute of Geology ＆ Mineral Resources,Yuxi 653100) |
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| Abstract: | The Menglian area is the southwestward extension of Sanjiang fold system,the collision suture of Late Palaeozoic Gondwana and Yangzi Plate.In this area,there is the rock assemblage of ultrabasic,intermediate-basic lava,volcanic clastic rock,sandstone,mudstone and silicic rock.And the Early Permian Radiolaria has been discovered first in the silicic rock.Then,the Huoju Formation is set up,which belongs to the sub-abyssal facies environment.The time and sedimentary environment of it are discussed in this paper. |
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| Keywords: | Sub-Abyssal Environment Rift in Plate Slope Turbidite Facies Early Permian Radiolaria Menglian SW Yunnan |
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