内蒙古敖汉地区水系沉积物测量异常评价及找矿方向
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摘要
为了快速缩小找矿范围,提供有利靶区,基于1∶5万水系沉积物测量成果,对内蒙古敖汉地区的水系沉积物地球化学特征进行了分析,并结合研究区成矿地质条件共圈出22处综合异常,通过对HS-7综合异常进行查证,发现2条铜(银)矿化体,表明水系沉积物测量在该区具有较好的找矿效果,尤其对金、铜等矿种效果更加突出。在综合异常分析和查证的基础上,结合区内的矿产分布特征、化探异常特征、地质特征及区域成矿地质条件,共圈定4处找矿远景区,即:撰山子—关东沟金铜银找矿远景区、黄花甸—白土营子钼铜找矿远景区、水泉—大黄胡同铁铜萤石找矿远景区和下甸子铜钼找矿远景区,为进一步找矿工作指明了方向。
The 1∶50 000 stream sediment survey was conducted in the Aohan area,Inner Mongolia.The paper ana-lyzed the geochemical characteristics of the stream sediment based the results,in order to quickly narrow the prospecting range and provide promising target areas.22 comprehensive anomalies were delineated in connection with the ore-forming geological conditions in the research area.The investigation of HS-7 comprehensive anomaly found 2 copper(silver) mineralization bodies.It shows that geochemical survey of stream sediments has good prospecting effect in this area,especially for gold,copper and other minerals.Based on the comprehensive anomaly analysis and investigation,in combination with the regional mineralization and local geological settings,4 potential prospecting areas were delineated including Zhuanshanzi-Guandonggou Au-Cu-Ag area,Huanghuadian-Baituyingzi Mo-Cu area,Shuiquan-Dahuanghutong Fe-Cu-fluorite area,Xiadianzi Cu-Mo area.The results provide reference for future prospecting.
The 1∶50 000 stream sediment survey was conducted in the Aohan area,Inner Mongolia.The paper ana-lyzed the geochemical characteristics of the stream sediment based the results,in order to quickly narrow the prospecting range and provide promising target areas.22 comprehensive anomalies were delineated in connection with the ore-forming geological conditions in the research area.The investigation of HS-7 comprehensive anomaly found 2 copper(silver) mineralization bodies.It shows that geochemical survey of stream sediments has good prospecting effect in this area,especially for gold,copper and other minerals.Based on the comprehensive anomaly analysis and investigation,in combination with the regional mineralization and local geological settings,4 potential prospecting areas were delineated including Zhuanshanzi-Guandonggou Au-Cu-Ag area,Huanghuadian-Baituyingzi Mo-Cu area,Shuiquan-Dahuanghutong Fe-Cu-fluorite area,Xiadianzi Cu-Mo area.The results provide reference for future prospecting.
引文
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[17] 覃锋,刘建明,曾庆栋,等.内蒙古克什克腾旗小东沟斑岩型钼矿床成岩成矿机制探讨[J].岩石学报,2009,25(12):3 357-3 368.
[18] WU F Y,GUO ZHAO G C,SUN D Y,et al.The Hulan Group:Its role in the evolution of the Central Asian Orogenic Belt of NE China[J].Journal of Asian Earth Sciences,2007,30(3/4):542-556.
[19] 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.
[20] 戚长谋.元素地球化学分类探讨[J].长春地质学院学报,1991,21(4):361-365.
[21] 高忠晖,徐涛,李崴崴,等.辽宁大营子地区1 ∶5万水系沉积物测量异常评价及找矿方向[J].黄金,2018,39(1):9-19.
[2] 贾三石,王恩德,付建飞,等.冀东-辽西主要金矿矿集区地质特征的差异性与成矿作用的统一性探析[J].地质学报,2011,85(9):1 493-1 506.
[3] 徐庆林,李碧乐,薛昊日,等.辽宁省朝阳市东五家子金矿成矿流体特征及矿床成因探讨[J].西北地质,2010,43(3):75-84.
[4] 朴寿成,李绪俊,师磊,等.赤峰—朝阳金矿化集中区元素分带特征及其应用[J].地质与勘探,2006,42(1):17-20.
[5] 陈伟军,刘红涛.赤峰-朝阳金矿化集中区主要金矿类型及地质特征研究[J].黄金科学技术,2006,14(5):1-7.
[6] 陈红军.从地质勘查工作的新进展谈赤峰地区金矿勘探思路[J].内蒙古科技与经济,2010(10):47-49.
[7] 沈柳生,高州,王铃.赤峰—朝阳地区金矿控矿因素及找矿方向探讨[J].地质找矿论丛,2008,23(2):135-139.
[8] 陈勇,陈建平,赵洁,等.赤峰金矿资源定量预测与评价[J].中国地质,2008,35(3):551-556.
[9] 孙社良,冯增会,黄孝波,等.新疆汉水泉地区水系沉积物测量地球化学特征及找矿方向[J].物探与化探,2018,42(6):1 116-1 124.
[10] 张再天,潘家永,夏菲,等.江西玉华山地区水系沉积物化探数据处理及找矿靶区划分[J].物探化探计算技术,2013,35(1):86-92.
[11] 薛顺荣,肖克炎,丁建华.香格里拉地区勘查地球化学信息找矿应用[J].物探与化探,2008,32(5):537-540.
[12] 吴继红.内蒙古敖汉旗四家子—金厂沟梁地区侏罗纪花岗质岩石年代学与地球化学特征[D].长春:吉林大学,2017.
[13] 陈井胜,彭艳东,刘淼,等.辽西建平烧锅营子金矿花岗岩的锆石U-Pb年代学、地球化学特征及地质意义[J].中国地质,2016,43(2):395-409.
[14] 孙燕,刘建明,曾庆栋,等.内蒙东部白土营子钼铜矿田的矿床地质特征、辉钼矿Re-Os年龄及其意义[J].岩石学报,2013,29(1):241-254.
[15] ZENG Q D,YANG J H,LIU J M,et al.Genesis of the Chehugou Mo-bearing granitic complex on the northern margin of the North China Craton:geochemistry,zircon U-Pb age and Sr-Nd-Pb isotopes[J].Geological Magazine,2012,149(5):753-767.
[16] 张作伦,曾庆栋,屈文俊,等.内蒙碾子沟钼矿床辉钼矿Re-Os同位素年龄及其地质意义[J].岩石学报,2009,25(1):212-218.
[17] 覃锋,刘建明,曾庆栋,等.内蒙古克什克腾旗小东沟斑岩型钼矿床成岩成矿机制探讨[J].岩石学报,2009,25(12):3 357-3 368.
[18] WU F Y,GUO ZHAO G C,SUN D Y,et al.The Hulan Group:Its role in the evolution of the Central Asian Orogenic Belt of NE China[J].Journal of Asian Earth Sciences,2007,30(3/4):542-556.
[19] 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.
[20] 戚长谋.元素地球化学分类探讨[J].长春地质学院学报,1991,21(4):361-365.
[21] 高忠晖,徐涛,李崴崴,等.辽宁大营子地区1 ∶5万水系沉积物测量异常评价及找矿方向[J].黄金,2018,39(1):9-19.