内蒙古东部运积物覆盖区地球化学勘查方法对比
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摘要
内蒙古东部草原地区成矿地质条件优越,但由于普遍遭受风成砂覆盖,常规地球化学勘查方法受到较大限制。为优选出更有效的地球化学勘查方法,选择内蒙古东部洛恪顿铅锌矿作为试验研究区,开展了土壤热磁组分和土壤细颗粒测量2种方法对比研究。结果表明,在90 m覆盖深度的见矿区,2种方法均能圈出指示元素异常,热磁组分测量具有异常强度高、连续性好的优势,细粒级测量具有便捷与相对经济的优势。对于盖层厚度在200 m的见矿区,细粒级测量元素异常较弱,与矿体吻合程度相对较低,热磁组分测量则能够圈出分带明显,与矿体吻合较好的元素异常。因此在覆盖厚度较大的地区,土壤热磁组分测量方法更具优势。
Due to the common coverage of aeolian sand,the effect of conventional geochemical exploration methods is limited in eastern Inner Mongolia,which leads to the inefficiency of concealed ore exploration in spite of superior metallogenic geological condition there.In order to select most effective geochemical exploration methods suitable for eastern Inner Mongolia,the authors studied the effectiveness and practicability of thermal magnetic components and fine-grain survey in the Luokedun lead-zinc deposit. The results are as follows: At orebody location covered by the depth of 90 m,two methods all can delineate the anomalies clearly. Thermal magnetic component survey has the advantages of stronger intensity and better continuity,whereas fine-grained soil survey has the convenient and relatively economical advantages. For the overlying thickness of over 200 m,the anomaly of thermal magnetic component survey is more obvious relative to the anomaly detected by fine-grained soil survey,and the anomaly is fairly consistent with the known orebody. Therefore,it is better to choose the method of thermal magnetic component survey to explore concealed ore deposits whose buried depth is over 90 m in eastern Inner Mongolia.
Due to the common coverage of aeolian sand,the effect of conventional geochemical exploration methods is limited in eastern Inner Mongolia,which leads to the inefficiency of concealed ore exploration in spite of superior metallogenic geological condition there.In order to select most effective geochemical exploration methods suitable for eastern Inner Mongolia,the authors studied the effectiveness and practicability of thermal magnetic components and fine-grain survey in the Luokedun lead-zinc deposit. The results are as follows: At orebody location covered by the depth of 90 m,two methods all can delineate the anomalies clearly. Thermal magnetic component survey has the advantages of stronger intensity and better continuity,whereas fine-grained soil survey has the convenient and relatively economical advantages. For the overlying thickness of over 200 m,the anomaly of thermal magnetic component survey is more obvious relative to the anomaly detected by fine-grained soil survey,and the anomaly is fairly consistent with the known orebody. Therefore,it is better to choose the method of thermal magnetic component survey to explore concealed ore deposits whose buried depth is over 90 m in eastern Inner Mongolia.
引文
[1]樊连杰,马生明,岑况,等.内蒙古中东部草原景观区多金属矿地球化学勘查方法对比研究[J].现代地质,2012,26(5):1117-1124.
[2]金松,李健,胡中国,等.内蒙古东乌旗巴润查干陶勒盖地区物化探异常特征及找矿远景[J].化工矿产地质,2016,38(2):105-114.
[3]Xueqiu W,Bimin Z,Xin L,et al.Geochemical challenges of diverse regolith-covered terrains for mineral exploration in China[J].Ore Geology Reviews,2016,73:417-431.
[4]Zhang B,Wang X,Ye R,et al.Geochemical exploration for concealed deposits at the periphery of the Zijinshan copper–gold mine,southeastern China[J].Journal of Geochemical Exploration,2015,157:184-193.
[5]Zhang B,Wang X,Chi Q,et al.Three-dimensional geochemical patterns of regolith over a concealed gold deposit revealed by overburden drilling in desert terrains of northwestern China[J].Journal of Geochemical Exploration,2016,164:122-135.
[6]胡卫星,马维,侯静,等.地物化综合方法在草原覆盖区找矿中的应用——以内蒙古努如大坂钼铅锌银多金属矿勘查为例[J].地质与资源,2014,23(S1):113-121.
[7]徐启东,张晓军,尚恒胜,等.构建覆盖区综合地质找矿思路和流程的探索:以内蒙古锡林郭勒西北部为例[J].地球科学:中国地质大学学报,2012,37(6):1252-1258.
[8]曾旭,陈远荣,林立保,等.烃汞综合气体测量法在冲洪积覆盖区找矿的可行性探讨[J].中国地质,2016,43(2):607-616.
[9]段炼,陈远荣,段海东,等.烃气测量法在黄土覆盖区找矿中探索研究[J].矿产与地质,2016,30(2):234-239.
[10]王学求,张必敏,叶荣.纳米地球化学与覆盖区矿产勘查[J].矿物岩石地球化学通报,2016,35(1):43-51.
[11]张必敏,王学求,贺灵,等.内蒙古半干旱草原区隐伏矿地球化学勘查方法试验[J].物探与化探,2013,37(5):804-810.
[12]张必敏,王学求,徐善法,等.盆地金属矿穿透性地球化学勘查模型与案例[J].中国地质,2016,43(5):1697-1709.
[13]刘汉粮,王学求,张必敏,等.沙泉子隐伏铜镍矿地球化学勘查方法试验[J].物探化探计算技术,2014,36(6):763-770.
[14]刘汉粮,张必敏,刘东盛,等.土壤微细粒全量测量在甘肃花牛山矿区的应用[J].物探与化探,2016,40(1):33-39.
[15]张必敏,王学求,迟清华,等.戈壁覆盖区景观演化与Au的分散迁移[J].现代地质,2011,25(3):575-580.
[16]谢邦廷,孙彬彬,贺灵,等.朝不楞多金属矿外围1∶5万地电化学勘查应用[J].地质与勘探,2016,52(5):885-892.
[17]孙彬彬,刘占元,周国华.地电化学方法技术研究现状及发展趋势[J].物探与化探,2015,39(1):16-21.
[18]陈亚东,孙彬彬,刘占元,等.地电化学提取有效性及提取条件试验——以半干旱草原风成砂浅覆盖景观区为例[J].物探与化探,2015,39(5):1008-1012.
[19]胡树起,史长义,马生明,等.热磁技术在覆盖区找矿中的应用[J].物探与化探,2010,34(5):622-626.
[20]唐世新,马生明,胡树起.土壤磁性组分测量在干旱荒漠区找矿中的有效性探讨[J].矿产勘查,2012,3(6):804-810.
[21]聂兰仕,程志中,王学求,等.深穿透地球化学方法对比研究——以内蒙古花敖包特铅锌矿为例[J].地质通报,2007,26(12):1574-1578.
[22]陈亚东.内蒙古东乌旗洛恪顿铅锌多金属矿区地电化学方法技术研究[D].中国地质大学(北京),2015.
[23]李晓辉,王亮.内蒙古自治区东乌珠穆沁旗洛恪顿铅锌多金属矿详查年度总结报告[R].2013.
[24]郭志娟.土壤热磁组分特征及元素富集方式探讨[D].北京:中国地质科学院,2012.
[25]郭志娟,马生明,胡树起,等.土壤热磁组分形貌特征及元素富集方式[J].物探与化探,2012,36(3):396-402.
[26]鄢明才,迟清华.中国东部地壳与岩石的化学组成[M].北京:科学出版社,1997.
[27]邵跃.矿床元素原生分带的研究及其在地球化学找矿中的应用[J].地质与勘探,1984(2):47-55.
[2]金松,李健,胡中国,等.内蒙古东乌旗巴润查干陶勒盖地区物化探异常特征及找矿远景[J].化工矿产地质,2016,38(2):105-114.
[3]Xueqiu W,Bimin Z,Xin L,et al.Geochemical challenges of diverse regolith-covered terrains for mineral exploration in China[J].Ore Geology Reviews,2016,73:417-431.
[4]Zhang B,Wang X,Ye R,et al.Geochemical exploration for concealed deposits at the periphery of the Zijinshan copper–gold mine,southeastern China[J].Journal of Geochemical Exploration,2015,157:184-193.
[5]Zhang B,Wang X,Chi Q,et al.Three-dimensional geochemical patterns of regolith over a concealed gold deposit revealed by overburden drilling in desert terrains of northwestern China[J].Journal of Geochemical Exploration,2016,164:122-135.
[6]胡卫星,马维,侯静,等.地物化综合方法在草原覆盖区找矿中的应用——以内蒙古努如大坂钼铅锌银多金属矿勘查为例[J].地质与资源,2014,23(S1):113-121.
[7]徐启东,张晓军,尚恒胜,等.构建覆盖区综合地质找矿思路和流程的探索:以内蒙古锡林郭勒西北部为例[J].地球科学:中国地质大学学报,2012,37(6):1252-1258.
[8]曾旭,陈远荣,林立保,等.烃汞综合气体测量法在冲洪积覆盖区找矿的可行性探讨[J].中国地质,2016,43(2):607-616.
[9]段炼,陈远荣,段海东,等.烃气测量法在黄土覆盖区找矿中探索研究[J].矿产与地质,2016,30(2):234-239.
[10]王学求,张必敏,叶荣.纳米地球化学与覆盖区矿产勘查[J].矿物岩石地球化学通报,2016,35(1):43-51.
[11]张必敏,王学求,贺灵,等.内蒙古半干旱草原区隐伏矿地球化学勘查方法试验[J].物探与化探,2013,37(5):804-810.
[12]张必敏,王学求,徐善法,等.盆地金属矿穿透性地球化学勘查模型与案例[J].中国地质,2016,43(5):1697-1709.
[13]刘汉粮,王学求,张必敏,等.沙泉子隐伏铜镍矿地球化学勘查方法试验[J].物探化探计算技术,2014,36(6):763-770.
[14]刘汉粮,张必敏,刘东盛,等.土壤微细粒全量测量在甘肃花牛山矿区的应用[J].物探与化探,2016,40(1):33-39.
[15]张必敏,王学求,迟清华,等.戈壁覆盖区景观演化与Au的分散迁移[J].现代地质,2011,25(3):575-580.
[16]谢邦廷,孙彬彬,贺灵,等.朝不楞多金属矿外围1∶5万地电化学勘查应用[J].地质与勘探,2016,52(5):885-892.
[17]孙彬彬,刘占元,周国华.地电化学方法技术研究现状及发展趋势[J].物探与化探,2015,39(1):16-21.
[18]陈亚东,孙彬彬,刘占元,等.地电化学提取有效性及提取条件试验——以半干旱草原风成砂浅覆盖景观区为例[J].物探与化探,2015,39(5):1008-1012.
[19]胡树起,史长义,马生明,等.热磁技术在覆盖区找矿中的应用[J].物探与化探,2010,34(5):622-626.
[20]唐世新,马生明,胡树起.土壤磁性组分测量在干旱荒漠区找矿中的有效性探讨[J].矿产勘查,2012,3(6):804-810.
[21]聂兰仕,程志中,王学求,等.深穿透地球化学方法对比研究——以内蒙古花敖包特铅锌矿为例[J].地质通报,2007,26(12):1574-1578.
[22]陈亚东.内蒙古东乌旗洛恪顿铅锌多金属矿区地电化学方法技术研究[D].中国地质大学(北京),2015.
[23]李晓辉,王亮.内蒙古自治区东乌珠穆沁旗洛恪顿铅锌多金属矿详查年度总结报告[R].2013.
[24]郭志娟.土壤热磁组分特征及元素富集方式探讨[D].北京:中国地质科学院,2012.
[25]郭志娟,马生明,胡树起,等.土壤热磁组分形貌特征及元素富集方式[J].物探与化探,2012,36(3):396-402.
[26]鄢明才,迟清华.中国东部地壳与岩石的化学组成[M].北京:科学出版社,1997.
[27]邵跃.矿床元素原生分带的研究及其在地球化学找矿中的应用[J].地质与勘探,1984(2):47-55.