| 鲁西河控浅水三角洲沉积体系及煤聚集规律 |
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| 引用本文： | 李增学,魏久传.鲁西河控浅水三角洲沉积体系及煤聚集规律[J].煤田地质与勘探,1995,23(2):7-12. |
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| 作者姓名： | 李增学 魏久传 |
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| 作者单位： | 山东矿业学院 |
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| 摘 要： | 大型河控浅水三角洲沉积体系发育于鲁西石炭二叠纪含煤地层的上部，是晚古生代大规模海退时期陆源碎屑物质快速推进的产物。在论述鲁西河控浅水三角洲沉积体系的成因相及其内部构成基础上，将其划分为上三角洲平原和下三角洲平原两大部分，前者在鲁西地区发育最好。研究表明，河控浅水三角洲沉积体系经历了由发育到废期两个完整的演化阶段，废弃阶段为聚煤作用最强，成煤期最好的时期。而且，聚煤作用与沉积体系废戏延续的时间有关，
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| 关 键 词： | 煤 聚集规律 三角洲 沉积体系 含煤建造 |
THE DEPOSITIONAL SYSTEM OF FLUVIAL-CONTROLLED SHALLOWWATER DELTA AND COAL-ACCUMULATION ANALYSIS IN WESTERN SHANDONG |
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| Li Zengxue,Wei Jiuchuan,Li Shouchun.THE DEPOSITIONAL SYSTEM OF FLUVIAL-CONTROLLED SHALLOWWATER DELTA AND COAL-ACCUMULATION ANALYSIS IN WESTERN SHANDONG[J].Coal Geology & Exploration,1995,23(2):7-12. |
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| Authors: | Li Zengxue Wei Jiuchuan Li Shouchun |
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| Institution: | Shandong Institute of Mining and Technology |
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| Abstract: | he large-scale fluvial-controlled shallow-water deltaic depositional system is developed in the upper part of the Permo-Carboniferous coal measure.It is the product of rapid progradation of terrigenous elastic sediments in the period of Lata Paleozoic large scale retreat of sea water.The authors study thoroughly the genetic factes and internal architecture of the depositional system,subdivide the depositional system into two parts:the upper deltaic plain and the lower deltaic plain,the former is developed well in the study area,The study show that the fluvial-controlled shallow-water deltaic depositional system experenced two comprehensive evolution stages,from grownth to abandon. The abandon stage was the best period for coal-accumulating.And the intensity of coal-accumulation was positively related to the lasting time, the more universal the peat swamp and the thicker the coal layers. |
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| Keywords: | oal bearing formation delta factes fluvialite factes genetic factes coal-accumulation Shandong |
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