CAJ | 학술논문

青海三江北段成矿带是指我国著名的西南三江成矿带的北延部分，是地质找矿最具潜力的地区之一。笔者将三江北段划分了3个地球化学区，即西金乌兰‐玉树地球化学分区、沱沱河‐杂多地球化学分区、雁石坪地球化学分区，分析了它们的特点。沱沱河‐杂多地球化学分区Pb、Zn、As、Sb、Mn、Cd、Nb、Sr等元素表现为富集；各地球化学分区主要成矿（相关）元素排序方式表明Pb、Zn、Cd、As、Sb、Mn、Cu、Ag、M o、Fe等元素不但处于明显富集状态，而且分布极不均匀，形成了三江北段内特定的元素组合。地球化学分区为该区的找矿方向、成矿远景评价及基础地质调查奠定了基础。
청해삼강북단성광대시지아국저명적서남삼강성광대적북연부분，시지질조광최구잠력적지구지일。필자장삼강북단화분료3개지구화학구，즉서금오란‐옥수지구화학분구、타타하‐잡다지구화학분구、안석평지구화학분구，분석료타문적특점。타타하‐잡다지구화학분구Pb、Zn、As、Sb、Mn、Cd、Nb、Sr등원소표현위부집；각지구화학분구주요성광（상관）원소배서방식표명Pb、Zn、Cd、As、Sb、Mn、Cu、Ag、M o、Fe등원소불단처우명현부집상태，이차분포겁불균균，형성료삼강북단내특정적원소조합。지구화학분구위해구적조광방향、성광원경평개급기출지질조사전정료기출。
The northern part of the Qinghai Sanjiang metallogenic belt refers to the northern extension of the southwestern Sanjiang metallogenic belt ,which is one of the most promising areas of geological prospecting .It is divided into three geochemical zones ,namely Xijir Ulan‐Yushu geochemical subdivision , Tuotuohe‐Zadol geochemical subdivision and Yanshiping geochemical subdivision .Plumbum ,Zn ,As ,Sb , Mn ,Cd ,Nb ,Sr are enriched in Tuotuohe‐Zadol subdivision ,and the major mineralization (related) elements sorting orders of the three geochemical subdivisions indicate that Pb ,Zn ,Cd ,As ,Sb ,Mn ,Cu ,Ag ,Mo ,Fe are not only obviously enriched ,but also are very unevenly distributed ,forming a particular element association within the northern part of the Sanjiang region .Geochemical zoning laid a good foundation for the prospecting direction ,metallogenic prospect evaluation and basic geological survey of the area .