闽西南中二叠统童子岩组沉积特征及聚煤环境研究  

Sedimentary characteristics and coal-accumulating environment of middle Permian Tongziyan formation in southwestern Fujian

作　　者：邱占林[1,2,3] 黄俊南 许福美 陈栋[1,3] 罗城 陈欢[1] 翁佩娴[1] Qiu Zhanlin;Huang Junnan;Xu Fumei;Chen Dong;Luo Cheng;Chen Huan;Weng Peixian(School of Resource Engineering,Longyan University,Longyan,Fujian 364012,China;College of Geographical Sciences,Fujian Normal University,Fuzhou,Fujian 350007,China;Mine Water Disaster Prevention Research Institute,Longyan University,Longyan,Fujian 364012,China;The 197 Geological Prospecting Team of Fujian Province,Quanzhou,Fujian 362018,China)

机构地区：[1]龙岩学院资源工程学院,福建省龙岩市364012 [2]福建师范大学地理科学学院,福建省福州市350007 [3]龙岩学院矿井水害防治研究所,福建省龙岩市364012 [4]福建省197地质大队,福建省泉州市362018

出　　处：《中国煤炭》2019年第11期112-117,共6页China Coal

基　　金：福建省科技厅引导性项目(2020Y0063);福建省自然基金项目(2015J01171);福建省教育厅中青年教师教育科研项目(科技类)(JAT190555);龙岩市科技计划项目(青年人才项目)(2019LYF8005);福建省大学生创新创业训练计划项目(201711312054、201811312068)

摘　　要：中二叠统童子岩组是闽西南地区主要的含煤沉积建造,其沉积特征与聚煤环境的研究程度事关含煤岩系煤岩层划分、对比的准确性。在系统收集相关研究成果资料的基础上,通过对童子岩组地层沉积特征精细化分析,初步总结了该区主要聚煤环境。结果发现:闽西南地区童子岩组三分性明显,具有3段5亚段的地层特征及8期4体系的聚煤环境,属于一套复杂的海陆交互相赋煤细碎屑岩沉积体系,可比性强。其主要环境类型为:障壁岛—泻湖相、潮坪—潮道相、浅海相及滨岸湖泊相沉积环境组合,与童子岩组各亚段交叉对应,对确定找煤方向、靶区以及聚煤规律具有重要的现实意义。Tongziyan formation of middle Permian is the main coal-bearing sedimentary formation in southwestern Fujian,study on its sedimentary characteristics and coal-accumulating environment is related to the accuracy of coal-bearing strata classification and comparison.Based on the systematic collection of relevant research results and the refined analysis of the sedimentary characteristics of Tongziyan formation,the main coal-accumulating environment in this area was preliminarily summarized.The results showed that the Tongziyan formation in southwestern Fujian had obvious trisection with stratigraphic characteristics of three-section&five-subsection and coal-accumulating environment of eight-phase&four-system,it belonged to a set of complex marine-terrestrial interfaces coal-bearing fine clastic rock sedimentary system with strong comparability.Its main environmental types were barrier island-lagoon facies,tidal flat-tidal channel facies,shallow sea facies and littoral lake facies sedimentary environment assemblages,which were cross-corresponding to each subsection of Tongziyan formation,and had important practical significance for determining coal prospecting direction,target area and coal accumulation law.

关 键 词：童子岩组 沉积特征 聚煤环境 沉积相 闽西南 

分 类 号：P618.11[天文地球—矿床学]