摘要
霍林河煤盆地位于内蒙古自治区,自然区划属大兴安岭南段现山系的脊部地区。这个盆地是大兴安岭及其西坡聚煤盆地群的一个典型代表,盆地内晚侏罗世—早白垩世含煤岩系分布面积约550平方公里,其中含煤面积占80%以上,煤层累计厚度数十至百米以上,为我国正在建设中的一个大型煤炭基地。近十余年来吉林煤田地质公司472队等施工钻孔1000余个,对煤盆地进行了全面地控制。由于有这样有利的研究条件,472队与武汉地质学院煤田教研室合作进行了较全面的盆地分析工作。
Huolinhe Basin in Nei Monggol is a typical representative of the Late Jurassic-Early’Cretaceous fault basin group in the Da tIinggan Mountains.It was formed by the dextral tenso-shear effect.Its tectonic style is a semi-graben.Contemporaneous marginal faults are situated on the western side.The cumulative thickness of coal seams is more than 100 meters.The coal-rich area is very extensive.Based on geological and geophysical data of over 1200 bores and logs,a systematic basin analysis has been made,including geometry and structural framework of the basin,constitution of lithology anl facies of coal-bearing strata and spatial configuration of facies,geometry of sandbody and coalbody,stratigraphic thickness distribution,etc.Over 60 maps have been constructed by strata and members.They reflect paleogeography,paleotectonies and characteristics of coal accumulation.Thus the Mesozoic depositional and structural history has been reconstructed and some basic patterns of the synsedimentary tectonic movement have been deduced.The relationship between the coal-bearing properties and paleogeographic environment and paleotectonic settings has been elucidated.Thus the result of typical analyses has been provided for the establishment of a model of basin deposition and tectonic evolution for the prognosis and prospecting of the same basin.
作者
李思田
黄家福
杨士恭
张新民
程守田
赵根榕
李殿安
李桂良
丁晋麟
Li Sitian;Huang Jiafu;Yang Shigong;Zhang Xinmin;Cheng Shoutian;Zhao Genrong;Li Dianan;Li Guiliang;Ding Jinlin(Wuhan College of Geology;472 Exploration Team of Coal)
出处
《地质学报》
1982年第3期244-254,293-294,共13页
Acta Geologica Sinica
