青海那西郭勒地区沉积—变质型铁矿遥感综合找矿模式构建
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摘要
文章以那西郭勒铁矿床为例,在深入剖析该铁矿床成矿地质背景及成因的基础上,基于World View-2遥感数据解译了赋矿地层及含矿岩性,总结了地层、含矿岩性及铁矿带遥感影像特征,同时分析该矿床遥感蚀变异常特征,结合构造、磁异常等找矿信息,构建了沉积—变质型铁矿遥感综合找矿模式;通过该找矿模式预测了1处找矿有利地段,为该地区的后续基础地质、矿产勘查工作,以及关键地段的含矿性或找矿潜力评价提供参考依据。
Taking Naxiguole sedimentary metamorphic type iron deposit as a case study for the purpose of establishing comprehensive remote sensing prospecting model.On the basis of studying metallogenic geological setting and deposit genesis,the ore-bearing strata and lithological units of Naxiguole iron deposit were interpreted by using World View-2 and ETM remote sensing data,and the remote sensing image features of ore-bearing strata,lithological units and iron ore belt were summarized.Meanwhile remote sensing alteration anomalous features were analyzed.In combination with ore-controlling structures and magnetic anomalies information,the comprehensive remote sensing prospecting model for the sedimentary metamorphic iron deposit was constructed.Based on the model,one favorable prospecting area was delineated which can be serve as follow-up prospecting target as well as provides relative reference for assessment of key ore-bearing mineralization zone and prospection potential.
Taking Naxiguole sedimentary metamorphic type iron deposit as a case study for the purpose of establishing comprehensive remote sensing prospecting model.On the basis of studying metallogenic geological setting and deposit genesis,the ore-bearing strata and lithological units of Naxiguole iron deposit were interpreted by using World View-2 and ETM remote sensing data,and the remote sensing image features of ore-bearing strata,lithological units and iron ore belt were summarized.Meanwhile remote sensing alteration anomalous features were analyzed.In combination with ore-controlling structures and magnetic anomalies information,the comprehensive remote sensing prospecting model for the sedimentary metamorphic iron deposit was constructed.Based on the model,one favorable prospecting area was delineated which can be serve as follow-up prospecting target as well as provides relative reference for assessment of key ore-bearing mineralization zone and prospection potential.
引文
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[2]陈玲,张微,周艳,等.高分辨率遥感影像在新疆塔什库尔干地区沉积变质型铁矿勘查中的应用[J].地质与勘探,2012,48(5):1039-1048.
[3]王娜,田淑芳,马丽丽,等.多源信息在莫阿特铜矿区找矿预测中的应用[J].遥感信息,2014,29(4):62-68.
[4]何书跃,舒树兰,刘永乐,等.青海祁漫塔格地区有效找矿方法总结[J].矿床地质,2013,32(1):187-194.
[5]许长坤,刘世宝,赵子基,等.青海省东昆仑成矿带铁矿成矿规律与找矿方向研究[J].地质通报,2012,86(10):71-128.
[6]沈贵春,都忠卫,张先福,等.青海省那陵郭勒河西铁多金属矿地质特征及高精度磁法应用[J].西北地质,2012,45(1):301-305.
[7]蒋成伍.青海省格尔木市四角羊一牛苦头地区矽卡岩型铁多金属矿矿化特征及成矿模式研究[D].北京:中国地质大学(北京),2013.
[8]李洪普.东昆仑祁漫塔格铁多金属成矿地质特征与成矿预测[D].北京:中国地质大学(北京),2010.
[9]李洪普,曹永亮,关有国,等.青海东昆仑山四角羊地区铁多金属矿床的成矿地质特征[J].地质通报,2009,(6):99-105.
[10]蔡进福.祁漫塔格地区群力铁矿成矿特征及找矿前景分析[D].北京:中国地质大学(北京),2013.
[11]潘彤,拜永山,孙丰月,等.青海省东昆仑地区有色、贵金属成矿系列与成矿预测[M].北京:地质出版社,2011.
[12]周永贵.阿尔金山北缘喀腊大湾地区遥感异常信息提取及找矿靶区预测[D].北京:中国地质科学院,2013.