塞拉利昂马邦托地区铁矿地质特征及找矿预测
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摘要
马邦托地区位于塞拉利昂北方省,苏拉山—坎格瑞丘陵弧形构造带由北北东向北北西的转折部位、新太古代绿岩带内,铁矿、金矿资源丰富,成矿地质条件优越。文章在论述巴伐亚铁矿床地质特征的基础上分析了区域铁矿成矿规律,总结了铁矿控矿因素,建立了区域沉积变质型铁矿成矿模式和预测模型。结合马邦托地区1:5万航磁异常特征,进行了矿产预测,指明了找矿方向,总结了找矿标志。结果表明:马邦托地区铁矿找矿潜力仍然巨大,Y2异常区为寻找富铁矿的有利地段。
Mabonto area of Sierra Leone is located in the alternating part of Sula mountain to Kangari hills arc tectonic zone which take a turn from NNE into NNW, the gold and iron resources are abundant, the ore-forming geological conditions are superior.Based on the geological characteristics of the Gpafaya iron deposit, the metallogenic regularities of the regional iron deposits are analyzed,the controlling factors of iron deposits are summarized, the metallogenic model and prediction model of sedimentary metamorphic iron deposits in this area are established. Combined with the characteristics of 1:50000 aeromagnetic anomaly, mineral prediction is carried out, and prospecting indicators are summarized. This study results show that the iron ore prospecting in Mabonto is good and Y2 aeromagnetic anomaly area is a favorable area for finding rich ore deposits.
Mabonto area of Sierra Leone is located in the alternating part of Sula mountain to Kangari hills arc tectonic zone which take a turn from NNE into NNW, the gold and iron resources are abundant, the ore-forming geological conditions are superior.Based on the geological characteristics of the Gpafaya iron deposit, the metallogenic regularities of the regional iron deposits are analyzed,the controlling factors of iron deposits are summarized, the metallogenic model and prediction model of sedimentary metamorphic iron deposits in this area are established. Combined with the characteristics of 1:50000 aeromagnetic anomaly, mineral prediction is carried out, and prospecting indicators are summarized. This study results show that the iron ore prospecting in Mabonto is good and Y2 aeromagnetic anomaly area is a favorable area for finding rich ore deposits.
引文
董少波,曾瑞垠,朱江建,马林霄,黄建业,谭康雨,詹勇.2016.塞拉利昂北方省Gpafaya铁矿地质特征及成因浅析[J].矿产勘查,7(4):683-690.
范正国,黄旭钊,杨雪,张洪瑞,周道卿,刘前坤,谭林.2012.冀东孤山子航磁异常特征及其找矿前景[J].地质与勘探,48(4):750-759.
葛藤菲,范正国,黄旭钊,张永军,何敬梓,李皎皎,周道卿,刘前坤.2015.攀枝花钒钛磁铁矿深部成矿潜力及找矿方向的航磁资料研究[J].地质与勘探,51(6):1041-1048.
李厚民,王登红,李立兴,陈靖,杨秀清,刘明军.2012.中国铁矿成矿规律及重点矿集区资源潜力分析[J].中国地质,39(3):559-580.
李延河,张增杰,侯可军,段超,万德芳,胡古月.2014.辽宁鞍本地区沉积变质型富铁矿的成因:Fe、Si、O、S同位素证据[J].地质学报,88(12):2351-2372.
李玉嵩,张妍,张涛,戴学富,刘山峰.2014.塞拉利昂区域成矿特征与找矿远景分析[J].中国矿业,23(2):75-78.
马林霄,董少波,周朝宪,曾瑞垠,黄建业,谭康雨.2015.塞拉利昂Yirisen金矿地质特征及成因浅析[J].矿产勘查,6(3):311-317.
时培哲,王纪昆,冀建军,薛清波.2017.塞拉利昂北方省Manautili沉积变质型铁矿床找矿模型[J].矿产勘查,8(3):496-503.
田宇,沈正新,祁程.2017.小兴安岭成矿带铁矿床航磁特征及找矿前景分析[J].矿产勘查,8(3):440-446.
肖凡,班宜忠,孙建东,张翔,董长春.2015.华东地区沉积变质型铁矿成矿规律[J].资源调查与环境,36(3):179-189.
许英霞,张龙飞,李厚民,李立兴,高孝敏,贾东锁.2015.冀东司家营沉积变质型铁矿床找矿模型[J].地质与勘探,51(1):23-35.
于长春,范正国,王乃东,熊盛青,万建华,张洪瑞.2007.高分辨率航磁方法及在大冶铁矿区的应用[J].地球物理学进展,22(3):979-983.
张吉涛.2018.山东莱州—安丘地区沉积变质型铁矿床地质地球物理特征及成矿规律[J].矿产勘查,9(4):653-660.
郑广如,张玄杰,范子良,周坚鑫,宋燕兵,温世新.2011.高精度航磁调查在新疆西天山地区的应用[J].物探与化探,35(2):188-191.
(1)塞拉利昂北方省GPAFAYA矿区铁矿详查报告.2015.中色地科矿产勘查股份有限公司.
(1)塞拉利昂北方省SOKOYA矿区铁矿详查报告.2015.中色地科矿产勘查股份有限公司.
范正国,黄旭钊,杨雪,张洪瑞,周道卿,刘前坤,谭林.2012.冀东孤山子航磁异常特征及其找矿前景[J].地质与勘探,48(4):750-759.
葛藤菲,范正国,黄旭钊,张永军,何敬梓,李皎皎,周道卿,刘前坤.2015.攀枝花钒钛磁铁矿深部成矿潜力及找矿方向的航磁资料研究[J].地质与勘探,51(6):1041-1048.
李厚民,王登红,李立兴,陈靖,杨秀清,刘明军.2012.中国铁矿成矿规律及重点矿集区资源潜力分析[J].中国地质,39(3):559-580.
李延河,张增杰,侯可军,段超,万德芳,胡古月.2014.辽宁鞍本地区沉积变质型富铁矿的成因:Fe、Si、O、S同位素证据[J].地质学报,88(12):2351-2372.
李玉嵩,张妍,张涛,戴学富,刘山峰.2014.塞拉利昂区域成矿特征与找矿远景分析[J].中国矿业,23(2):75-78.
马林霄,董少波,周朝宪,曾瑞垠,黄建业,谭康雨.2015.塞拉利昂Yirisen金矿地质特征及成因浅析[J].矿产勘查,6(3):311-317.
时培哲,王纪昆,冀建军,薛清波.2017.塞拉利昂北方省Manautili沉积变质型铁矿床找矿模型[J].矿产勘查,8(3):496-503.
田宇,沈正新,祁程.2017.小兴安岭成矿带铁矿床航磁特征及找矿前景分析[J].矿产勘查,8(3):440-446.
肖凡,班宜忠,孙建东,张翔,董长春.2015.华东地区沉积变质型铁矿成矿规律[J].资源调查与环境,36(3):179-189.
许英霞,张龙飞,李厚民,李立兴,高孝敏,贾东锁.2015.冀东司家营沉积变质型铁矿床找矿模型[J].地质与勘探,51(1):23-35.
于长春,范正国,王乃东,熊盛青,万建华,张洪瑞.2007.高分辨率航磁方法及在大冶铁矿区的应用[J].地球物理学进展,22(3):979-983.
张吉涛.2018.山东莱州—安丘地区沉积变质型铁矿床地质地球物理特征及成矿规律[J].矿产勘查,9(4):653-660.
郑广如,张玄杰,范子良,周坚鑫,宋燕兵,温世新.2011.高精度航磁调查在新疆西天山地区的应用[J].物探与化探,35(2):188-191.
(1)塞拉利昂北方省GPAFAYA矿区铁矿详查报告.2015.中色地科矿产勘查股份有限公司.
(1)塞拉利昂北方省SOKOYA矿区铁矿详查报告.2015.中色地科矿产勘查股份有限公司.