Abstract：By means of gravity and magnetic data processing and interpretation of Luannan area, the authors analyzed the metallogenic spatial distribution and the relationship between the magnetic and gravity anomalies in the sedimentary metamorphic iron ore deposits, described the characteristics of magnetic and gravity anomalies in this area which are characterized by banding distribution, expounded the gravity and magnetic anomaly characteristics of Gu'an-Changli fault zone in relation to the distribution of the magnetite. According to the relationship between the distribution of the Sijiaying-Macheng iron deposit and the magnetic and gravity anomalies, the authors made anomaly inversion comparison through drilling verification and demonstrates the ore-related magnetic anomalies in Luannan area. Combined with regional tectonic and magnetic characteristics, the authors summed up the experience obtained in the exploration process of BIF iron ore deposit in this area, and predicted the ore-forming prospect of this type of ore deposits.
张天龙, 张维, 王忠义, 张福斌, 李斌, 杨立伟. 冀东滦南一带重磁异常特征及找矿意义[J]. 物探与化探, 2014, 38(4): 641-648.
ZHANG Tian-Long, ZHANG Wei, WANG Zhong-Yi, ZHANG Fu-Bin, LI Bin, YANG Li-Wei. Characteristics of gravity and magnetic anomalies in Luannan area of eastern Hebei and their ore-prospecting significance. Geophysical and Geochemical Exploration, 2014, 38(4): 641-648.
[1] 顾德林,李志忠,李龙,等.冀东迁安铁矿区早前寒武纪硅铁岩矿层褶皱变形序列[J].现代地质,1990,4(4):60-62. [2] 郭武林.综合物探方法在冀东沉积—变质铁矿勘查中的应用[J].地质与勘探,1986,22(6):52-56. [3] 陈佩良,刘德秀.重磁方法在综合物探中的应用[J].成都理工学院学报,1997,24(4):116-119. [4] 韩兆红,利用重磁资料进行构造边界识别与弱异常提取的方法研究及应用.长春:吉林大学,2011:6-14. [5] 卢焱,李健,白雪山,等.地面磁法在隐伏铁矿勘查中的应用——以河北滦平Ⅱ号铁矿为例[J].吉林大学学报:地球科学版,2008,38(4): 698-702. [6] 丁文君,陈正乐,陈柏林,等.河北迁安杏山铁矿床地球化学特征及其对成矿物质来源的指示[J].地质力学学报,2009,15(4):363-373. [7] 杨昌明.冀东滦县地区前寒武纪铁矿与火山喷发沉积旋回的关系[J].地球科学:武汉地质学院学报,1986,11(1):51-52. [8] 李万亨,彭文能,刘瑾漩,等.冀东滦县一带前寒武纪沉积—变质铁矿床成矿规律及成矿预测[J].地球科学:武汉地质学院学报,1983,7(2):116-118. [9] 贺绍英.冀东迁安滦县前震旦变质岩系分布区区域性重力场和磁场特点的初步分析.中国地质科学院院报:地质研究所分刊,1980(1):34-42. [10] 徐步台,王时麒.河北滦县一带含铁变质岩系K-Ar等时年龄及其地质年代意义[J].北京大学学报,1983(3):90-91. [11] Anhaeusser C R.Cyclic volic volcanicity and sedimentation in the evolutionary developmeat of Archaean greenstone belts of shield areas[J].Spec publs Geol, 1971(3):57-72. [12] Gross G A.The depositional environment of principal type of Precambrian iron-formation.Geological Survey of Canada,1970. [13] Lemaitre R W. The chemical vareability of some common igneuos rocks[J]. Lournal of petrology, 1976,17(4). [14] Jahn B M,Auvray B,Conicher J,et al. SGa old amphibolites from easier Hebei province, China: Field occurrence, Petrography, Sm-Nd isochron age, REE geochemistry[J]. Precambrian Research, 1987,34: 311-346. [15] Liu D Y, Nutman A P, Williams J S, et al. Remnants of >3 800 Ma crust in the Chinese part of the Sino-Korean craton[J].Geology, 1992,(3):339-342.
