| 桂西北区中三叠统含金浊积岩系沉积学 |
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| 引用本文： | 吴江,李思田.桂西北区中三叠统含金浊积岩系沉积学[J].现代地质,1993,7(2):127-137,T002. |
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| 作者姓名： | 吴江 李思田 |
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| 作者单位： | 中国地质大学 北京
(吴江，李思田)，中国地质大学 北京(王屾) |
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| 基金项目： | 地矿部“黑色岩系中层控金矿床成矿条件及预测”资助项目 |
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| 摘 要： | 本文以中三叠统浊积岩系岩性相的识别为基础,通过垂向层序的划分和分析,结合区分出浊流主体流向与溢堤流流向数据的古流分析、古坡向分析、中三叠统板纳组地层等厚图,概括了本区中三叠统浊流沉积的总体配置,厘定了右江浊积盆地在安尼期、拉丁期时的沉积格局。最后,讨论了右江浊积盆地的水深变化趋势、浊积岩系形成的背景条件,以及浊积盆地的存在与金矿成矿作用之间的关系。
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| 关 键 词： | 桂西北区 浊积岩系 古流分析 右江浊积盆地 成金作用 |
SEDIMENTOLOGY OF THE MIDDLE TRIASSIC GOLD-BEARING TURBIDITE SERIES IN THE NORTHWESTERN GVANGXI ZHVANG AVTONOMOUS REGION, GHINA |
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| Wu Jiang Li Sitian Wang Shen.SEDIMENTOLOGY OF THE MIDDLE TRIASSIC GOLD-BEARING TURBIDITE SERIES IN THE NORTHWESTERN GVANGXI ZHVANG AVTONOMOUS REGION, GHINA[J].Geoscience——Journal of Graduate School,China University of Geosciences,1993,7(2):127-137,T002. |
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| Authors: | Wu Jiang Li Sitian Wang Shen |
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| Abstract: | Based on the recognition of 14 kinds of (contituent) facies in the Middle Triassic tur-
bidite series, 4 kinds of main vertical sequences, combined with the main turbidite pale-
ocurrent directions, from what the overflow directions have been distinguished, and
palaeoslope inclinations, as weIl as Banna Formation stratigraphic isopach map, 3--dimen-
sional turbidite depositional frame are built. The depositional styles of Youjiang turbidite
basin during Anisian and Latian are established. At last, the authors discuss the change
trend of the ancient water depth, the basin type during forming the turbidite series, and the
relationship between the turbidite basin and mineralization Df gold. |
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| Keywords: | northwestern Guangxi turbidite series Youjiang turbidite basin palaeocurrent analysis mineralization of gold |
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