二连盆地胜利煤田构造特征及成因机制
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摘要
为研究二连盆地胜利煤田构造及成因问题,以野外地质调查及煤田地质资料分析为基础,结合前人研究成果,分析研究区构造及其演化。结果表明:早白垩世以来,位于西伯利亚板块与欧亚板块缝合带之上的胜利煤田在早期基底断裂的基础上,受东部太平洋板块向欧亚板块俯冲的影响,主要经历了伸展断陷、压扭变形和抬升剥蚀三期次级构造运动,形成了NE向边界断层控制下的压扭成因的NW向高角度正断层与NE向帚状构造的组合;其构造演化主要分为3个阶段,分别为阿尔善期的缓慢裂陷阶段、腾格尔和都红木期加速裂陷–快速裂陷阶段、赛罕塔拉期进入缓慢裂陷–终止裂陷阶段,研究区在此基础上发育的聚煤盆地。
Based on the field geological survey and coalfield geological data of Shengli coalfield in Erlian basin, combining the previous research results, we analyzed the structure and evolution of the study area. The result shows: Since the Early Cretaceous, located on the suture zone between the Siberia plate and the Eurasian plate and based on the early basement fault, the Shengli coalfield was affected by the westward subduction of the Pacific plate, which experienced three stages of extensional fault depression, torsional deformation and uplift and denudation, forming the combination of NW directional high angle normal faults and NE directional broom structures. The tectonic evolution of Shengli coalfield is mainly divided into three stages, respectively the slow rifting stage of the Aershan Period, the strong rapid rifting stage of Tenggeer and Duhongmu Period, the slow rifting and termination rifting stage of Saihantala Period, therefore, Shengli coalfield is a coal accumulation basin developed on this basis.
Based on the field geological survey and coalfield geological data of Shengli coalfield in Erlian basin, combining the previous research results, we analyzed the structure and evolution of the study area. The result shows: Since the Early Cretaceous, located on the suture zone between the Siberia plate and the Eurasian plate and based on the early basement fault, the Shengli coalfield was affected by the westward subduction of the Pacific plate, which experienced three stages of extensional fault depression, torsional deformation and uplift and denudation, forming the combination of NW directional high angle normal faults and NE directional broom structures. The tectonic evolution of Shengli coalfield is mainly divided into three stages, respectively the slow rifting stage of the Aershan Period, the strong rapid rifting stage of Tenggeer and Duhongmu Period, the slow rifting and termination rifting stage of Saihantala Period, therefore, Shengli coalfield is a coal accumulation basin developed on this basis.
引文
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[14]赵澄林,祝玉衡,季汉成,等.二连盆地储层沉积学[M].北京:石油工业出版社,1996:50-72.
[15]王崇敬,马施民,郭彪,等.二连盆地群早白垩世含煤地层特征及对比分析[J].煤炭科学技术,2014,42(4):106-108.WANG Chongjing,MA Shimin,GUO Biao,et al.Analysis on characteristics and correlation of coal-bearing stratigraphic of Early Cretaceous in Erenhot basins[J].Coal Science and Technology,2014,42(4):106-108.
[16]马新华,肖安成.内蒙古二连盆地的构造反转历史[J].西南石油大学学报(自然科学版),2000,22(2):1-4.MA Xinhua,XIAO Ancheng.The history of structural inversion in the Erlian basin,Inner Mongolia[J].Journal of Southwest Petroleum University(Natural Science Edition),2000,22(2):1-4.
[2]于英太.二连盆地演化特征及油气分布[J].石油学报,1980,11(3):13-19.YU Yingtai.The evolution characteristics of the Erlian basin and the distribution of oil and gas deposits[J].Journal of Petroleum,1980,11(3):13-19.
[3]李先平,张少华,李林波,等.二连盆地早白垩世断陷及基底构造的耦合性[J].地质科学,2015,50(1):88-90.LI Xianping,ZHANG Shaohua,LI Linbo,et al.Coupling of faulted sags to basement in the Early Cretaceous Erlian basin[J].Chinese Journal of Geology,2015,50(1):88-90.
[4]费宝生.二连盆地构造演化特征及其与油气关系[J].大地构造与成矿学,1985,9(2):121-125.FEI Baosheng.Structural evolution characteristics of the Erlian basin and its bearing on oil and gas[J].Geotectonics and Metallogenia,1985,9(2):121-125.
[5]余学中,薛春纪,丛丽娟,等.二连浩特一带境内外构造-成矿带的衔接问题浅析[J].地学前缘,2011,18(2):232-235.YU Xuezhong,XUE Chunji,CONG Lijuan,et al.A study of the connection of faults and metallogenic belts between Erenhot region,China and South Gobi,Mongolia[J].Earth Science Frontiers,2011,18(2):232-235.
[6]赵贤正,降栓奇,淡伟宁,等.二连盆地阿尔凹陷石油地质特征研究[J].岩性油气藏,2010,22(1):11-13.ZHAO Xianzheng,JIANG Shuanqi,DAN Weining,et al.Petroleum geologic characteristics of Artala sag in Erlian basin[J].Lithologic Reservoirs,2010,22(1):11-13.
[7]SAFONOVA L,SELTMANN R,KRONER A,et al.A new concept of continental construction in the Central Asian Orogenic belt[J].Episodes,2011,34(3):186-196.
[8]秦胜利.内蒙古胜利煤田锗矿床赋存规律及找矿方向[J].中国煤田地质,2001,13(3):18-19.QIN Shengli.Preservative law of germanium deposit in Shengli coal field of Inner Mongolia and its direction of Ore-search[J].Coal Geology of China,2001,13(3):18-19.
[9]黄文辉,万欢,杜刚,等.内蒙古自治区胜利煤田煤-锗矿床元素地球化学性质研究[J].地学前缘,2008,15(4):56-64.HUANG Wenhui,WAN Huan,DU Gang,et al.Research on elemental geochemical characteristics of coal-Ge deposit in Shengli coalfield,Inner Mongolia,China[J].Earth Science Frontiers,2008,15(4):56-64.
[10]朱杰,马延军,唐学民,等.胜利煤田煤层气储量预测[J].中国煤炭地质,2008,20(12):10-11.ZHU Jie,MA Yanjun,TANG Xuemin,et al.Shengli coalfield CBM reserve prediction[J].Coal Geology of China,2008,20(12):10-11.
[11]范国强.胜利煤田东区井田地质及煤的赋存规律[J].科技创业月刊,2011(4):162-163.FAN Guoqiang.Geology of the east district of Shengli coal field and the occurrence rule of coal[J].Pioneering with Science&Technology Monthly,2011(4):162-163.
[12]丁修建,柳广弟,查明,等.沉积速率与烃源岩有机质丰度关系:以二连盆地为例[J].天然气地球科学,2015,26(6):1077-1080.DING Xiujian,LIU Guangdi,ZHA Ming,et al.Relationship between sedimentation rate and organic matter abundance of source rocks:A case study of Erlian basin[J].Natural Gas Geoscience,2015,26(6):1077-1080.
[13]王建,王权,钟雪梅,等.二连盆地优质烃源岩发育特征及成藏贡献[J].石油实验地质,2015,37(5):642-645.WANG Jian,WANG Quan,ZHONG Xuemei,et al.Characteristics of high-quality hydrocarbon source rocks and their contributions to reservoirs in the Erlian basin[J].Petroleum Geology&Experiment,2015,37(5):642-645.
[14]赵澄林,祝玉衡,季汉成,等.二连盆地储层沉积学[M].北京:石油工业出版社,1996:50-72.
[15]王崇敬,马施民,郭彪,等.二连盆地群早白垩世含煤地层特征及对比分析[J].煤炭科学技术,2014,42(4):106-108.WANG Chongjing,MA Shimin,GUO Biao,et al.Analysis on characteristics and correlation of coal-bearing stratigraphic of Early Cretaceous in Erenhot basins[J].Coal Science and Technology,2014,42(4):106-108.
[16]马新华,肖安成.内蒙古二连盆地的构造反转历史[J].西南石油大学学报(自然科学版),2000,22(2):1-4.MA Xinhua,XIAO Ancheng.The history of structural inversion in the Erlian basin,Inner Mongolia[J].Journal of Southwest Petroleum University(Natural Science Edition),2000,22(2):1-4.