| 王海丰,胡月,王双,王晓云,魏俊浩.青海沟里园以地区地球化学测量信息提取与远景区划分[J].地质找矿论丛,2021,36(4):502-515 |
| 青海沟里园以地区地球化学测量信息提取与远景区划分 |
| Information extraction from geochemical survey data of Gouli Yuanyi area of Qinghai province and the prospecting area division |
| 投稿时间：2021-04-02 修订日期：2021-06-23 |
| DOI：10.6053/j.issn.1001-1412.2021.04.012 |
| 中文关键词: 水系沉积物 地球化学特征 异常信息提取 找矿远景区 沟里园以地区 青海省 |
| 英文关键词:stream sediment geochemical characteristics anomaly information extraction potential prospecting area Gouli area Qinghai province |
| 基金项目:中国地质调查局项目"青海都兰沟里金矿整装勘查区矿产地质调查与找矿预测"（编号：KZ20Z5003）资助。 |
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| 中文摘要: |
| 青海沟里园以地区位于东昆仑造山带的东段，根据水系沉积物地球化学测量信息提取发现多个矿床（点），具有较好的找矿潜力。文章以沟里园以地区1：5万水系沉积物地球化学测量数据为研究对象，对数据剔值处理来确定元素异常下限并圈定单元素异常与组合异常，结合区内地质找矿特征对圈定的元素异常进行解释与推断。通过对元素地球化学特征、元素组合特征及单元素异常特征综合研究表明，Au、Ag、Pb、Zn、Cu、Co等元素与成矿关系密切；提取出2个元素组合，确定套合性和相关性好的Ag-Bi-Pb-Zn与Cu-Co组合异常为预测对象；结合区内成矿地质条件，进一步圈定3个找矿远景区。 |
| 英文摘要: |
| Gouli area is located in the eastern part of the East Kunlun orogenic belt. Through geo chemical survey of stream sediment at scale 1:50000 in the area several ore deposits (occurrences) with prospecting potential have been discovered. The data are selectively processed and the lower limit of the elemental anomalies set, the single element and elemental combination lineated. Based on the prospecting marks of the area the anomalies lineages are interpreted and inferred. Comprehensive study of characteristics of the elemental geo chemistry, elemental combination and single element anomaly show that Au, Ag, Pb, Zn, Cu, Co etc. are closely related to mineralization; Ag-Bi-Pb-Zn, Cu-Co the two element combinations well fit and correlated thus predicted the potential anomalies. According to the ore-forming condition three potential prospecting areas are located. |
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