青海道帏地区1∶5万水系沉积物测量研究
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摘要
通过开展青海道帏区域810 km21∶5万水系沉积物测量工作,揭示本区域相关元素地球化学特征,研究显示:工作区水系沉积物中相对于地壳丰度元素含量偏高的元素有As、Sb、Bi、Pb、Sn、W等,同时Au、Ag、Hg、Sb、As、Bi、Pb等元素具备强分异能力,W、Mo具备一定分异能力。研究区内存在26个地球化学异常,其中乙2类异常存在6处。根据其地球化学特征,对其异常进行解释推断。从地球化学角度优选出相关矿产的找矿靶区,服务于后续地质矿产调查评价工作。
Through a stream sediment survey of 810 square kilometers 1 ∶ 5 000,we have known it reveals the regional element geochemical characteristics. The research shows that the working area sediments will be relative to crustal abundance elements of high content of the contents of As,Sb,Bi,Pb,Sn,W. We think Au,Ag,Hg,Sb,As,Bi,Pb and other elements have strong differentiation ability. W and Mo have a certain differentiation ability. There are 26 geochemical anomalies in the study area. Of which there are 6 kinds of 2 kinds of Yichang.The geochemical anomalies are interpreted and inferred according to their geochemical characteristics. The prospecting target areas of related minerals are optimized from the geochemical perspective,which serves the subsequent work of geological mineral investigation and evaluation.
Through a stream sediment survey of 810 square kilometers 1 ∶ 5 000,we have known it reveals the regional element geochemical characteristics. The research shows that the working area sediments will be relative to crustal abundance elements of high content of the contents of As,Sb,Bi,Pb,Sn,W. We think Au,Ag,Hg,Sb,As,Bi,Pb and other elements have strong differentiation ability. W and Mo have a certain differentiation ability. There are 26 geochemical anomalies in the study area. Of which there are 6 kinds of 2 kinds of Yichang.The geochemical anomalies are interpreted and inferred according to their geochemical characteristics. The prospecting target areas of related minerals are optimized from the geochemical perspective,which serves the subsequent work of geological mineral investigation and evaluation.
引文
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[6]张志,唐菊兴,杨毅,等.西藏尕尔穷铜金矿元素空间分布规律及地球化学勘查模型[J].地球学报,2012(4):663-672.
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[2]马生明,朱立新,席明杰,等.安徽马头矿区热液成矿边界的地球化学标志[J].地学前缘,2015(4):131-140.
[3]刘艳鹏,马生明,朱立新,等.安徽兆吉口热液型铅锌矿区元素迁移量三维地球化学勘查模式[J].地学前缘,2015(4):141-151.
[4]方向,唐菊兴,李彦波,等.西藏多龙矿集区拿若铜(金)矿床成矿元素空间分布规律及地球化学勘查模型[J].中国地质,2014(3):936-950.
[5]奚小环,李敏,刘荣梅,等.区域成矿地球化学理论体系问题研究:兼论沱沱河区域化探异常集群[J].地学前缘,2015(5):196-214.
[6]张志,唐菊兴,杨毅,等.西藏尕尔穷铜金矿元素空间分布规律及地球化学勘查模型[J].地球学报,2012(4):663-672.
[7]杨万志,周军,庄道泽,等.新疆西昆仑—阿尔金成矿带区域地球化学勘查进展[J].西北地质,2013(1):110-118.