| 滇西兰坪一带早石炭世石登组和晚二叠世羊八寨组的确定 |
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| 引用本文： | 尹光侯,苏学军,侯世云,刘志.滇西兰坪一带早石炭世石登组和晚二叠世羊八寨组的确定[J].地质通报,2001,20(1):58-61. |
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| 作者姓名： | 尹光侯 苏学军 侯世云 刘志 |
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| 作者单位： | 云南地勘局第三地质大队 |
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| 摘 要： | 兰坪-思茅盆地中段的石登-小格拉一带，发育一套石炭-二叠纪含火山岩地层，与周边地质体多呈断裂接触，并且化石较少，因而以往地层划分和时代归属意见不一。在1∶5万区调中新采获早石炭世牙形石和晚二叠世植物、腕足类化石，发现石炭纪和二叠纪地层之间为不整合接触，因此将其划分为早石炭世石登组和晚二叠世羊八寨组。
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| 关 键 词： | 滇西兰坪 石炭-二叠纪 石登组 羊八寨组 |
| 文章编号： | 1000－3967（2001）01－0058－04 |
| 修稿时间： | 1999年11月24 |
Determation of the Early Carboniferous Shideng Formationand Late Permian Yangbazhai Formationin the Lanping area， western Yunnan |
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| YIN Guang-hou,SU Xue-jun,HOU Shi-yun,LIU Zhi.Determation of the Early Carboniferous Shideng Formationand Late Permian Yangbazhai Formationin the Lanping area， western Yunnan[J].Geologcal Bulletin OF China,2001,20(1):58-61. |
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| Authors: | YIN Guang-hou SU Xue-jun HOU Shi-yun LIU Zhi |
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| Abstract: | A sequence of Carboniferous－Permian volcanic rock-bearing strata is developed in Shideng－Xiaogela area in the central part of the Lanping－Simao basin． It is mostly in fault contact with surrounding geological bodies and contains scarce fossils； therefore， there were divergent views as to its stratigraphic division and age assignment in the past． The Early Carboniferous conodont fossils and Late Permian plant and brachiopod fossils collected in the 1∶50000 regional survey show an unconformity between the Carboniferous and Permian． So it is divided into the Early Carboniferous Shideng Formation and Late Permian Yangbazhai Formation． |
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