云南省中和营地区1∶5万水系沉积物测量地球化学特征及找矿方向

通过湘西-滇东地区矿产地质调查二级项目开远地区子项目的1:5万水系沉积物测量工作，结合中和营地区地质、地球化学工作成果，分析了中和营地区18中元素的含量、富集离散程度以及微量元素间的元素组合特征，对工区18种元素圈定了单元素异常292个，归并为5个综合异常，综合异常走向、分布总体与区内北东、北西向构造一致。并对研究区重点综合异常（ZHYAS5乙2Sb-Hg综合异常）进行解析，分析得出综合异常区内的主要成矿元素且主要异常元素间套合度好、异常衬度及异常规模（NAP）较大，结合区内地质情况推测该异常可作为本区寻找锑多金属矿的有利地段，为下一步的地质找矿工作指明了方向。

Geochemical characteristics and ore-search direction from surveys of 1:50000 to stream sediments in the Zhongheying area, Yunnan Province

This work is based on the 1:50,000 stream sediment survey as a Kaiyuan sub-project of the second-order project of mineral geologic survey in western Hunan and eastern Yunnan. Combined with geological and geochemical data from the Zhongheying area, the content, enrichment and dispersion degree of 18 elements in this area and the characteristics of element combination among trace elements are analyzed. The 292 element anomalies are delineated and merged into 5 comprehensive anomalies. The strike and distribution of these comprehensive anomalies are generally consistent with the NE and NW trending structures in the area. The key comprehensive anomaly (ZHYAS5B2Sb-Hg comprehensive anomaly) in the study area is further analyzed, indicating that ore-forming elements match well the main anomaly elements have good and both the anomaly contrast and scale (NAP) are fairly large. Combining with the geological conditions in the area, it is inferred that this anomaly can be regarded as a mark of favorable section to search for antimony polymetallic deposits, representing a direction for the next geological prospecting work in the area.