研究区位于钦杭成矿带中段的东乡火山盆地，已探明有多个金铅锌为主的矿点及矿化点。基于“由已知到未知”的原则，结合激电中梯测量和土壤地球化学等综合物化探成果，对比分析桥西（HS-1）和欧家（HS-2）两地区伽玛能谱组合参数特征，认为地面伽玛能谱特征参数异常中心较土壤地球化学测量得到的异常更为集中，在K蚀变带中，F参数与异常呈正相关，在Na化蚀变带中，N参数与异常呈正相关；并推测HS-2地区具有相对较好的金多金属找矿前景。研究结果为火山岩地区的单元与超单元划分提供了新的理论依据，证明在实际工作中，应该综合分析区内的地质情况和特征，确定合适的组合参数来间接解释地区成矿蚀变性质或原因，较传统单一元素的能谱研究更具指导意义。

The study area is located in the Dongxiang Volcanic Basin in the middle part of the Qin-Hang mineralization belt, where several gold-lead-zinc (Au-Pb-Zn)-based mineralization and mineralization sites have been detected. Based on the principle of "from the known to the unknown", combineing the results of physical and chemical exploration, such as the excitation middle gradient measurement and soil geochemistry, the characteristics of the combined parameters of the gamma spectra of Qiaoxi (HS-1) and Oujia (HS-2) was compared and analyzed, it was concluded that the anomaly centers of the characteristic parameters of the ground γ-ray were more concentrated than those of the anomalies obtained from soil geochemistry measurements. It was believed that the anomaly centers of the ground γ-ray energy spectral parameters were more concentrated than those of the soil geochemical measurements, and the F parameters were positively correlated with the anomalies in the K alteration zone, and the N parameters were positively correlated with the anomalies in the Na chemotaxis zone; and it was hypothesized that the HS-2 area has a relatively good prospect of gold polymetallic prospecting. The results provides a new theoretical basis for unit and super-unit delineation of volcanic areas, and proves that in practical work, the geological situation and characteristics of the area was comprehensively analyzed, and the appropriate combination of parameters was determine to indirectly explain the nature or cause of mineralized alteration in the area, which is more instructive than the traditional single-element spectral study.