地球化学勘查固体样品采集的野外质量评价指标

The field quality evaluation index of solid sampling in geochemical exploration

我国现行规范给出了采集固体地球化学样品的各项要求和简单易行的质量评价方法。为了更全面地反映采样相关要求,笔者综合分析讨论了国内外地球化学勘查中采样方法、采样影响因素等方面的研究成果,从样品与样本两个层次,样品属性、空间与时间三个维度,提出以采样合规性、代表性、针对性、均匀性和时间性等"采样五性"作为衡量固体地球化学样品质量的指标体系,并对采样代表性、针对性指标进行了量化,对于评价采集固体地球化学样品的野外工作质量具有较明确的实用价值。

The requirements and simple quality evaluation method of solid geochemical sampling are given in China's current norms.In order to more fully reflect sampling requirements,the authors have comprehensively analyzed and discussed the research results of sampling methods and sampling factors in China and abroad.From the two levels of sample and samples,the three dimensions of sample properties,space and time,the sampling compliance,representativeness,pertinence,uniformity and timeliness are used as the index system to measure the quality of solid geochemical sampling,and the representative and pertinent indexes are qualified.The new index has definite practicability for evaluating the quality of field sampling in geochemical sampling.