| 云南陇川盆地东南缘新第三系砾岩成因及沉积模型 |
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| 引用本文： | 赵永胜,陈布科,赵锡奎,邓平河,施文华. 云南陇川盆地东南缘新第三系砾岩成因及沉积模型[J]. 成都理工大学学报(自然科学版), 1994, 0(2) |
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| 作者姓名： | 赵永胜 陈布科 赵锡奎 邓平河 施文华 |
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| 作者单位： | 成都理工学院石油系，滇黔桂石油勘探局经理部 |
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| 摘 要： | 云南陇川盆地东南缘新第三系南林组砾岩沉积物由扇根碎屑流、扇中河道和扇缘水道及沼泽沉积构成，文章探讨了各类砾岩的成因、粒度分布，指出该区的砾岩沉积模型及其油气勘探意义。
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| 关 键 词： | 砾岩岩相，冲积扇，粒度特征，碎屑流，南林组 |
SEDIMENTARY MODEL AND ORIGIN OF CONGLOMERATE IN THE SOUTHEASTERN MARGIN OF NEOGENE LONGCHUAN BASIN, WEST YUNNAN |
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| Zhao Yongsheng,Chen Bake,Zhao Xikui, Kuang Pinghe, Shi Wenhua. SEDIMENTARY MODEL AND ORIGIN OF CONGLOMERATE IN THE SOUTHEASTERN MARGIN OF NEOGENE LONGCHUAN BASIN, WEST YUNNAN[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 1994, 0(2) |
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| Authors: | Zhao Yongsheng Chen Bake Zhao Xikui Kuang Pinghe Shi Wenhua |
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| Affiliation: | Zhao Yongsheng;Chen Bake;Zhao Xikui; Kuang Pinghe; Shi Wenhua |
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| Abstract: | Neogene conglomerates in the southeastern margin of Longchuan basin mainly consist of debris flow and channel conglomerates. The sedimentary model is in accordance with no channel alluvial fan for margin fault. The fans can be divided into three parts: lower, middle and upper.The lower fans mainly consist of debris flow conglomerates. Lithofacies combination areas follows: Gm Gb, Gm-F. The middle fans are composed of debris flow and channel conglomerates. The lithofacies combination is as follows:Ss-Gh-St,Ss-Gh-St,Ss-Sm-F, Gs-Gm-Sh-F. The upper fans are composed of water channel and swamp. There are coal layers in the swamp.Distribution frequency curves of clast size of conglomerates may indicate sedimentary environment. BTH and MPS of conglomerates show that the conglomerates are from debris flow. |
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| Keywords: | conglomerate lithofacies alluvial fan distribution characteristic of grain size debris flow Nanlin Fm |
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