基于航空重磁特征对突泉盆地构造的认识
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摘要
为获取突泉盆地航空物探基础地质资料,为油气调查评价提供参考,中国国土资源航空物探遥感中心在该盆地开展了1∶10万航空重磁综合调查工作。利用最新的航空重磁资料及实测岩石物性数据,对突泉盆地及其邻区重磁异常特征进行研究,分析航空重磁异常与地层展布、断裂活动、岩浆岩体的分布关系,重点探讨盆地的基底性质。结果表明,研究区航空重力异常与航磁异常在强度、范围、形态、梯度和走向等方面具有一定的规律性,该区断裂体系分布与重磁场特征明显相关,NNE-NE向、NW向及NE向3组断裂明显控制盆地沉积岩体及岩浆岩体的展布,盆地基底由下古生界浅变质岩系和前古生界中等变质岩系构成。
In order to obtain the basic data of aerogeophysical survey and provide some reference for hydrocarbon resources survey and evaluation in Tuquan Basin,China Aero Geophysical Survey and Remote Sensing Center for Land and Resources carried out the 1∶ 100 000 airborne gravity and magnetic survey in this area. Based on the latest airborne gravity and magnetic data and measured petrophysical data,the authors studied the gravity and magnetic anomaly characteristics of Tuquan Basin and its adjacent areas,analyzed the relationship between airborne gravity and magnetic anomalies and stratigraphic distribution,faults movement and igneous rocks distribution,and mainly discussed the characteristics of basin basement. The results show that the airborne gravity and magnetic anomalies of the study area have obvious regularity in the intensity,distribution range,shape,gradient and strike. The distribution of fault system in this area has obvious correlation with gravity and magnetic field characteristics. The NNE-NE trending,NW trending and NE trending of fault structures have obvious controlling effects on the basin sedimentary and igneous rocks distribution. The basin basement should be composed of lowgrade metamorphic rocks of Lower Paleozoic and moderately metamorphic rocks of Prepaleozoic.
In order to obtain the basic data of aerogeophysical survey and provide some reference for hydrocarbon resources survey and evaluation in Tuquan Basin,China Aero Geophysical Survey and Remote Sensing Center for Land and Resources carried out the 1∶ 100 000 airborne gravity and magnetic survey in this area. Based on the latest airborne gravity and magnetic data and measured petrophysical data,the authors studied the gravity and magnetic anomaly characteristics of Tuquan Basin and its adjacent areas,analyzed the relationship between airborne gravity and magnetic anomalies and stratigraphic distribution,faults movement and igneous rocks distribution,and mainly discussed the characteristics of basin basement. The results show that the airborne gravity and magnetic anomalies of the study area have obvious regularity in the intensity,distribution range,shape,gradient and strike. The distribution of fault system in this area has obvious correlation with gravity and magnetic field characteristics. The NNE-NE trending,NW trending and NE trending of fault structures have obvious controlling effects on the basin sedimentary and igneous rocks distribution. The basin basement should be composed of lowgrade metamorphic rocks of Lower Paleozoic and moderately metamorphic rocks of Prepaleozoic.
引文
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[16]王玉华,雷茂盛,雷裕红,等.高精度重磁资料在松辽盆地古龙断陷火山岩气藏勘探中的应用[J].石油地球物理勘探,2008,43(1):107-112.
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[19]Li W Y,Zhou J X,Liu Y X,et al.First application of airborne gravity to oil exploration in the Shengli oil Province,eastern China[J].Exploration Geophysics,2014,46(3):297-307.
[20]屈念念,李家斌.云南昭通盆地重磁特征及其地质意义[J].中国地质调查,2016,3(4):37-42.
[21]张抗.中国大北方上古生界油气勘探新领域(代序)[J].地质通报,2011,30(6):803-810.
[22]张抗.东北地区油气领域接替形势展望(代序)[J].地质通报,2013,32(8):1141-1146.
[23]詹少全,陈中,李爱勇,等.重磁电综合解释在突泉盆地油气勘查中的应用[J].矿产与地质,2017,31(1):131-137,142.
[24]任收麦,乔德武,张兴洲,等.松辽盆地及外围上古生界油气资源战略选区研究进展[J].地质通报,2011,30(2/3):198-204.
[2]丁秋红,陈树旺,张立君,等.松辽盆地外围油气新区中生代地层研究新进展[J].地质通报,2013,32(8):1159-1176.
[3]刘建明,张锐,张庆洲.大兴安岭地区的区域成矿特征[J].地学前缘,2004,11(1):269-277.
[4]吴真玮,曾昭发,李静,等.基于重磁场特征的松辽盆地基底岩性研究[J].地质与勘探,2015,51(3):939-945.
[5]郭巍,刘招君,董惠民,等.松辽盆地层序地层特征及油气聚集规律[J].吉林大学学报:地球科学版,2004,34(2):216-221.
[6]胡望水,吕炳全,张文军,等.松辽盆地构造演化及成盆动力学探讨[J].地质科学,2005,40(1):16-31.
[7]方慧,钟清,陈树旺,等.内蒙古突泉盆地双低阻层的发现及其地质意义[J].地质通报,2013,32(8):1253-1259.
[8]王丹丹,李世臻,周新桂,等.大兴安岭地区突泉盆地高精度重磁电特征及其构造格架[J].吉林大学学报:地球科学版,2016,46(1):240-253.
[9]崔志强,孟庆敏,廖桂香,等.高精度航磁在大兴安岭中段新一轮找矿中的应用[J].物探与化探,2012,36(2):92-197.
[10]史建民,陈行时,丁继双.黑龙江大兴安岭地区航磁异常特征及找矿效果[J].地质与资源,2015,24(3):271-276.
[11]Li W Y,Liu Y X,Xu J C.Onshore-offshore structure and hydrocarbon potential of the South Yellow Sea[J].Journal of Asian Earth Sciences,2014,90:127-136.
[12]Li W Y,Liu Y X,Li B,et al.Hydrocarbon exploration in the south yellow sea based on airborne gravity,China[J].Journal of Earth Science,2016,27(4):686-698.
[13]唐克东,邵济安,李永飞.松嫩地块及其研究意义[J].地学前缘,2011,18(3):57-65.
[14]张明华,乔计花,田黔宁,等.大兴安岭东南部油气资源勘查区重磁异常初步解释[J].地质通报,2013,32(8):1177-1184.
[15]钟清,方慧,李晓昌,等.松辽盆地外围中生代盆地的岩石物性——以突泉盆地和乌兰盖盆地为例[J].地质通报,2013,32(8):1185-1194.
[16]王玉华,雷茂盛,雷裕红,等.高精度重磁资料在松辽盆地古龙断陷火山岩气藏勘探中的应用[J].石油地球物理勘探,2008,43(1):107-112.
[17]Li W Y,Liu Y X,Zhou J X,et al.Sedimentary basin analysis using airborne gravity data:A case study from the Bohai Bay Basin,China[J].International Journal of Earth Science,2016,105(8):2241-2252.
[18]Li W Y,Zhou J X,Xiong S Q,et al.Study of residual basin and tectonolayering based on airborne gravity and magnetic data[J].Acta Geologica Sinica:English Edition,2013,87(4):1137-1153.
[19]Li W Y,Zhou J X,Liu Y X,et al.First application of airborne gravity to oil exploration in the Shengli oil Province,eastern China[J].Exploration Geophysics,2014,46(3):297-307.
[20]屈念念,李家斌.云南昭通盆地重磁特征及其地质意义[J].中国地质调查,2016,3(4):37-42.
[21]张抗.中国大北方上古生界油气勘探新领域(代序)[J].地质通报,2011,30(6):803-810.
[22]张抗.东北地区油气领域接替形势展望(代序)[J].地质通报,2013,32(8):1141-1146.
[23]詹少全,陈中,李爱勇,等.重磁电综合解释在突泉盆地油气勘查中的应用[J].矿产与地质,2017,31(1):131-137,142.
[24]任收麦,乔德武,张兴洲,等.松辽盆地及外围上古生界油气资源战略选区研究进展[J].地质通报,2011,30(2/3):198-204.