乌鲁木齐县后峡东南沟隆昌煤矿B_(5)煤层煤岩煤质特征及煤相分析  

Analysis for Coal B_(5) Coal Petrology,Coal Quality Features and Coal Facies in Longchang Coalmine,Dongnangou,Houxia,Urumqi County

作　　者：张静 秦云虎 朱士飞 Zhang Jing;Qin Yunhu;Zhu Shifei(Jiangsu Design Institute of Coal Geology for Mineral Resources(CNACG Test Center),Xuzhou,Jiangsu 221006)

机构地区：[1]江苏地质矿产设计研究院(中国煤炭地质总局检测中心),江苏徐州221006

出　　处：《中国煤炭地质》2022年第2期6-9,28,共5页Coal Geology of China

基　　金：中国地质调查局地质调查工作项目(DD20160187);国家大型煤炭基地开发潜力评价研究项目。

摘　　要：隆昌煤矿位于准南煤田中段,主要含煤地层为中侏罗统西山窑组下段。通过对B_(5)煤层的30个分煤层样品煤岩、煤质特征分析可知,B_(5)煤层以中高挥发分、特低灰分、特低硫煤为特征;显微组分以镜质组为主,惰质组次之,壳质组少见,煤层垂向显微组成变化特征反映出成煤植物类型、成煤时期的气候以及泥炭聚集环境;B_(5)煤层煤相类型为湿地草本沼泽相和干燥森林沼泽,湿地草本沼泽相相对镜质组含量、灰分和挥发分较高,干燥森林沼泽相相对镜质组含量、灰分和挥发分偏低。The Longchang coalmine is situated in the middle of South Junggar coalfield.Main coal-bearing strata belong to the Lower Member,Xishanyao Formation,Middle Series,Jurassic System.Through analysis for coal petrology,coal quality features of 30 samples from coal slices of coal B_(5) have shown that the coal has medium to high volatile matter,very low ash and sulfur content features.Macerals have mainly vitrinite,inertinite the second,exinite scarce;vertical variation features of macerals reflected coal-forming vegetation types,coal-forming period climate and peat accumulation environment.Coal facies type of coal B_(5) have wet herbaceous bog facies and arid forest bog facies,the former has relatively higher vitrinite,ash and volatile matter contents;the later has vitrinite,ash and volatile matter contents relatively on the low side.

关 键 词：煤岩 煤质 煤相 隆昌煤矿 

分 类 号：P618.11[天文地球—矿床学]