| 桂西北上二叠统及下三叠统古岩溶不整合 |
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| 引用本文： | 陆刚,韦文林,张能,胡贵昂,李文强.桂西北上二叠统及下三叠统古岩溶不整合[J].南方国土资源,2002,15(4):5-10. |
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| 作者姓名： | 陆刚 韦文林 张能 胡贵昂 李文强 |
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| 作者单位： | 广西地勘总院基础地质调查院,广西,桂林,541003 |
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| 摘 要： | 文章描述了桂西北乐业、天峨等地区发现于上二叠统顶部、下三叠统顶部的 2个古岩溶不整合面 ,及其暴露、沉积间断特征 ,分析了它们的形成时代。通过这 2个I型层序界面的确认 ,讨论了其与地层划分对比、沉积环境及盆地分析、断裂的发育及与微粒型金矿的关系与意义。
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| 关 键 词： | 古岩溶 不整合 超覆 上二叠统 下三叠统 中三叠统 桂西北 |
| 文章编号： | 1003-7861(2002)04-0005-06 |
| 修稿时间： | 2002年5月14日 |
PALEOKART UNCONFORMITY OF LATE PERMIAN AND EARLY TRIASSIC IN NORTHWESTERN GUANGXI |
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| Authors: | LU Gang WEI Weng-ling ZHANG Nen HU Gui-ang LI Weng-qiang |
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| Abstract: | Two paleokart unconformity surfaces are discovered in the Tian'e-Le'ye area, etc, Northwestern Guangxi, which an unconformity is on the top of Late Permian, and other is on the top of Early Triassic. This paper introduce their marks of subaerial exposures and the features of sedimentary break and formation ages. Through the two I-type sequences boundaries are affirmed, the authors discuss the relation and significance between unconformity and stratigraphic division and correlation, and an analysis of sedimentary environment and basins, and the formation mechanism fault and microfine grained gold type deposits in the study area. |
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| Keywords: | paleokart unconformity overlap Late Permian Early Triassic Mid-Triassic Northwestern Guangxi |
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