西南天山地区水系沉积物地球化学测量方法研究

Research on Geochemical Survey Method of Water System Sediment in Southwestern Tianshan Region

通过西南天山地区水系沉积物地球化学测量方法的试验,提出了在该区开展水系沉积物地球化学找矿方法测量的采样深度、样品粒级和较适宜的采样密度等。试验结果表明,每平方千米采集40～80目的沟谷表层粗碎屑介质样品,能够圈定出清晰的矿化异常,而且指示意义明确,较准确地反映了矿体或矿化体的形态和延伸方向。

This paper puts forward the sampling depth, sample particle size and suitable sampling density for the geochemical prospecting survey of the water system sediment in this region through the test of geochemical survey method of the water system sediment in southwestern Tianshan region. The test results have shown that taking samples of 40~80 mesh coarse fragment medium from the surface of valley within each thousand square meter is able to clearly determine the mineralization anomaly and correctly reflect the shape of orehody or mineralized body and trending direction.