| 湖南省醴陵李畋—王仙地区石炭系岩相特征及其石英砂岩资源潜力分析 |
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| 引用本文：文亭,刘守林,汤贺军,李燕普,刘鹤群,王淑军,刘一帆.2023.湖南省醴陵李畋—王仙地区石炭系岩相特征及其石英砂岩资源潜力分析[J].地球学报,44(6):955-966. |
| DOI：10.3975/cagsb.2022.042801 |
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| 基金项目:湖南省地质院科研项目(编号: HNGSTP-202103) |
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| 中文摘要:湖南省石炭系地层蕴藏着丰富的石英砂资源, 对该地层序列的研究不仅有助于深入分析石英砂形成的古地理环境特征, 而且结合构造背景的研究, 可总结石英砂成因及分布规律, 为我省硅产业发展所需原料的开发提供理论依据。为此, 本文以李畋—王仙地区石炭系地层剖面及钻孔岩芯特征为基础, 结合古地理背景, 总结了本区的石炭系地层特征, 认为石炭系地层具以下特点: (1)研究区位于醴陵—攸县断陷盆地的北部边缘地带, 沉积了樟树湾组这套高成熟度石英砂岩; (2)本区石炭系总体经历了多次海退-海进的循环沉积过程, 反映由陆架建设到碳酸盐台地的形成过程; (3)本区石炭系地层受地形条件控制及同生断裂的影响, 其沉积差异明显。本研究对醴陵地区石炭系石英砂岩矿的开发具指导意义。 |
| 中文关键词:石炭系 石英砂岩 岩相特征 醴陵 湖南省 |
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| Lithofacies Characteristics and Resource Potential Analysis of Lithofacies of Carboniferous in Litian–Wangxian Area, Liling,Hunan Province |
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| Abstract:The Carboniferous strata in Hunan Province are rich in quartz sandstone resources. The study of this stratigraphic sequence contributes to the in-depth analysis of the paleogeographic features of the formation of quartz sand. It explores the genesis and distribution of quartz sand by integrating the tectonic background. It provides a theoretical basis for the source of raw materials required for developing the silicon industry in our province. Therefore, based on the carboniferous strata section and borehole core characteristics in the Litian–Wangxian area and combined with the paleogeographical background, this paper summarizes the carboniferous strata in this area and finds that the carboniferous strata have the following characteristics: (1) The study area is located in the northern margin of the Liling–Youxian Rift Basin, where the high-maturity quartzite sandstones of the Zhangshuwan Formation were deposited; (2) The Carboniferous system in this area experienced many regressive-transgressive cyclic sedimentation processes, which reflected the formation process from the shelf construction to the carbonate platform; (3) The Carboniferous system in this area is controlled by topographic conditions and influenced by syngenetic faults, and their sedimentary differences are obvious. This study has guiding significance for developing Carboniferous quartz sandstone deposits in the Liling area. |
| keywords:Carboniferous System quartz sandstone lithofacies characteristics Liling Hunan province |
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