| 滇西兰坪盆地五茂林剖面下白垩统景星组沉积相 |
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| 引用本文： | 吴根耀,矢野孝雄,谭明清. 滇西兰坪盆地五茂林剖面下白垩统景星组沉积相[J]. 古地理学报, 2004, 6(3): 380-384 |
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| 作者姓名： | 吴根耀 矢野孝雄 谭明清 |
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| 作者单位： | 中国科学院地质与地球物理研究所,北京,100029;鸟取大学教育地域科学部,日本,鸟取,680-8551;云南省地质矿产局第三地质大队,云南,大理,671000 |
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| 摘 要： | 实测了云南西部兰坪盆地东部下白垩统下部景星组的五茂林剖面，建立了曲流河、三角洲和湖泊3种沉积序列，其中三角洲序列在云南下白垩统中属首次建立。分析了粗碎屑岩的组成，将该剖面上出露的砾岩分成4类。早白垩世时兰坪盆地属丹那沙林-高黎贡弧的弧后盆地，景星组自下而上为曲流河沉积、三角洲沉积和湖泊沉积，且随湖侵发生，湖泊向西扩大。
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| 关 键 词： | 沉积相 五茂林剖面 早白垩世 兰坪盆地 |
| 文章编号： | 1671-1505(2004)03-0380-05 |
| 修稿时间： | 2003-02-27 |
Sedimentary facies of the Jingxing Formation of Lower Cretaceous in Lanping Basin, West Yunnan |
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| Wu Genyao Takao Yano Tan Mingqing Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing Faculty of Education , Regional Sciences,Tottori University,Tottori,-,Japan No Geological Team,Bureau of Geology and Mineral Resources of Yunnan Province,Dali ,Yunnan. Sedimentary facies of the Jingxing Formation of Lower Cretaceous in Lanping Basin, West Yunnan[J]. Journal of Palaeogeography, 2004, 6(3): 380-384 |
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| Authors: | Wu Genyao Takao Yano Tan Mingqing Institute of Geology Geophysics Chinese Academy of Sciences Beijing Faculty of Education & Regional Sciences Tottori University Tottori - Japan No Geological Team Bureau of Geology Mineral Resources of Yunnan Province Dali Yunnan |
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| Affiliation: | Wu Genyao 1 Takao Yano 2 Tan Mingqing 3 1 Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029 2 Faculty of Education & Regional Sciences,Tottori University,Tottori,680-8551,Japan 3 No3 Geological Team,Bureau of Geology and Mineral Resources of Yunnan Province,Dali 671000,Yunnan |
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| Abstract: | Based on a measured geological section at Wumaolin in the west part of Lanping Basin,western Yunnan,three sedimentary successions,namely,the meandering stream,deltaic and lacustrine successions,were established in the Jingxing Formation of the Lower Cretaceous,among which the deltaic one was firstly established in the Lower Cretaceous in Yunnan,and the herringbone cross bedding was firstly discovered According to the composition of coarse clastic rocks from the section,4 types of conglomerates could be classified During the Early Cretaceous,the central western Yunnan area belonged to a continental backarc basin of the Tenasserim Gaoligong Arc The Jingxing Formation consisted of,from west to east,the braided river,meandering stream,deltaic and lacustrine deposits,with the lacustrine basin enlarged westwards |
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| Keywords: | sedimentary facies Wumaolin profile Early Cretaceous Lanping Basin |
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