区域化探方法试验探讨——以胶东半岛莱阳幅1∶20万水系沉积物测量为例

Study on Regional Geochemical Sampling Method——Setting Stream Sediment Survey of Laiyang Map with the Scale of 1∶ 200000 in Jiaodong Peninsula as an Example

为了了解莱阳幅1∶20万水系沉积物测量采样方法,通过季节试验、粒度试验和异常持续长度试验对该区的采样方法进行研究,结果表明:该区采样粒级应以-60目为宜,采样季节对元素含量影响甚微,流长长度在1.8 km以内都可以有效的发现区域异常。不过由于研究区异常持续长度试验只在一个矿区,对比元素较少,难以肯定流长长度的代表性,仅供参考。

In order to understand the stream sediment survey sampling method of Laiyang map with the scale of 1 ：200000, through seasonal test, particle size test and flow test, sampling method in this area has been studied. It is showed that the sampling size should be based on the -60 mesh, the sampling season has little effect on the content of elements and the geochemical anomalies can be discovered within 1.Skm. But the abnormal length test was only done in one mining area, and comparing elements were few. So it is difficult to ensure the representative. It can only provide some references.