新疆准东煤田芦草沟矿区西山窑组B_1煤层煤岩、煤相学研究
|
摘要
新疆准东煤田芦草沟煤矿区位于吉木萨尔县北部,矿区含煤面积为272km2,可采储量约为105×108t。区内主要可采煤层B1煤层厚度稳定,分布广泛,煤质优良,为准东煤炭主要开采对象。运用煤田地质学、煤岩学的理论和方法,进一步探讨西山窑组巨厚煤层的煤岩学特征和煤相类型。分析结果表明:该煤层显微组分以惰质组为主,镜质组次之,含少量壳质组;煤相类型以干燥森林沼泽相为主,湿地森林沼泽相为辅,泥炭沼泽总体形成于基底沉降速率和泥炭埋藏速率相对较慢,相对弱氧化的还原环境。
The Lucaogou prospecting area is located in the northern of the Jimusaer town in Xinjiang,with coal-bearing area of 272 km2 and 10.5 billion tons industrial reserves.The coal-seam B1 was main mineable coal seam with successive and steady distribution and high coal quality.This paper discuss the characteristic of coal petrology and coal facies of coal seam B1 in Xishanyao formation by the theories and methods of the coal geology and coal petrology.The results indicat:macerals of the coals was dominant of inertinite,and secondarily vitrinite,with little exinite.Coal facies consist of mainly the dry forest swamp and secondarily of the wet forest swamp,The swamp formed in the environment of relatively slow base subsidence and peat bury, and relatively oxidized oxidation-reduction.
The Lucaogou prospecting area is located in the northern of the Jimusaer town in Xinjiang,with coal-bearing area of 272 km2 and 10.5 billion tons industrial reserves.The coal-seam B1 was main mineable coal seam with successive and steady distribution and high coal quality.This paper discuss the characteristic of coal petrology and coal facies of coal seam B1 in Xishanyao formation by the theories and methods of the coal geology and coal petrology.The results indicat:macerals of the coals was dominant of inertinite,and secondarily vitrinite,with little exinite.Coal facies consist of mainly the dry forest swamp and secondarily of the wet forest swamp,The swamp formed in the environment of relatively slow base subsidence and peat bury, and relatively oxidized oxidation-reduction.
引文
[1]张冬玲,鲍志东,杨文秀.准噶尔盆地侏罗系层序地层格架的建立及主控因素分析[J].大庆石油学院学报,2005,29(2):10-12.
[2]周继兵,庄新国,张东亮.新疆准东煤田东部层序地层学及聚煤规律研究.新疆地质,2010,28(3):334-338.
[3]杨文孝,况军,徐长胜.准噶尔盆地大油气田形成条件和预测[J].新疆石油地质,1995,16(3):200-211.
[4]朱筱敏,康安,张琴,等.准噶尔盆地东北缘侏罗系含煤岩系层序地层和隐蔽圈闭[J].石油与天然气地质,2002,23(2):121-126.
[5]刘豪,王英民,王媛.浅析准噶尔盆地侏罗系煤层在层序地层中的意义[J].沉积学报,2002,20(2):197-202.
[6]李鑫,庄新国,周继兵,等.准东煤田中部矿区西山窑组巨厚煤层煤相分析[J].地质科技情报,2010,29(5):84-88.
[7]毛婉慧,庄新国,周继兵,等.煤相参数在煤层层序划分中的应用——以新疆准东煤田帐南西矿区为例[J].煤田地质与勘探,2011,39(1):6-10.
[8]潘松圻,庄新国,王小明,等.准东煤田西山窑组层序地层对煤相演化规律的控制[J].煤田地质与勘探,2013,41(6):2-6.
[9]庄新国,王平,周继兵,等.准东煤田煤地球化学特征[J].新疆地质,2013,31(1):94-98.
[10]陈新蔚,庄新国,周继兵,等,准东煤田煤质特征及分布规律,新疆地质,2013,31(1):89-93.
[11]M.B.Silva,W.Kalkreuth,M.Holz,Coal petrology of coal seams from the Le-o-Butiácoalfield,Lower Permian of the ParanáBasin,Brazil—Implications for coal facies interpretations International Journal of Coal Geology[J].2008,73:331-358.
[12]M.Marques,Coal facies and depositional environments of the Aurora and Cabeza de Vaca Units,Pen-arroya-Belmez-Espiel Coalfield(Cordoba,Spain),International Journal of Coal Geology[J].2002,48:197-216.
[13]Calder J.H.,Gibling M.R.,Mukhopadhyay P.K.Peat formation in a Westphalian B piedmont setting,Cumberland basin,Nova Scotia:implications for the maceral-based interpretation of rheotrophic and raised paleomires[J].Bull.Soc.Geol.Fr.1991,162,283-298.
[2]周继兵,庄新国,张东亮.新疆准东煤田东部层序地层学及聚煤规律研究.新疆地质,2010,28(3):334-338.
[3]杨文孝,况军,徐长胜.准噶尔盆地大油气田形成条件和预测[J].新疆石油地质,1995,16(3):200-211.
[4]朱筱敏,康安,张琴,等.准噶尔盆地东北缘侏罗系含煤岩系层序地层和隐蔽圈闭[J].石油与天然气地质,2002,23(2):121-126.
[5]刘豪,王英民,王媛.浅析准噶尔盆地侏罗系煤层在层序地层中的意义[J].沉积学报,2002,20(2):197-202.
[6]李鑫,庄新国,周继兵,等.准东煤田中部矿区西山窑组巨厚煤层煤相分析[J].地质科技情报,2010,29(5):84-88.
[7]毛婉慧,庄新国,周继兵,等.煤相参数在煤层层序划分中的应用——以新疆准东煤田帐南西矿区为例[J].煤田地质与勘探,2011,39(1):6-10.
[8]潘松圻,庄新国,王小明,等.准东煤田西山窑组层序地层对煤相演化规律的控制[J].煤田地质与勘探,2013,41(6):2-6.
[9]庄新国,王平,周继兵,等.准东煤田煤地球化学特征[J].新疆地质,2013,31(1):94-98.
[10]陈新蔚,庄新国,周继兵,等,准东煤田煤质特征及分布规律,新疆地质,2013,31(1):89-93.
[11]M.B.Silva,W.Kalkreuth,M.Holz,Coal petrology of coal seams from the Le-o-Butiácoalfield,Lower Permian of the ParanáBasin,Brazil—Implications for coal facies interpretations International Journal of Coal Geology[J].2008,73:331-358.
[12]M.Marques,Coal facies and depositional environments of the Aurora and Cabeza de Vaca Units,Pen-arroya-Belmez-Espiel Coalfield(Cordoba,Spain),International Journal of Coal Geology[J].2002,48:197-216.
[13]Calder J.H.,Gibling M.R.,Mukhopadhyay P.K.Peat formation in a Westphalian B piedmont setting,Cumberland basin,Nova Scotia:implications for the maceral-based interpretation of rheotrophic and raised paleomires[J].Bull.Soc.Geol.Fr.1991,162,283-298.