水系沉积物地球化学普查中若干问题探讨  

A tentative discussion on some problems in geochemical survey of stream sediments

作　　者：吴正昌[1] 王会敏[1] 江俊杰[1] 晏俊灵[1] 李百球 WU Zheng-Chang;WANG Hui-Min;JIANG Jun-Jie;YAN Jun-Ling;LI Bai-Qiu(Jiangxi Institute of Geological Survey,Nanchang 330030,China)

机构地区：[1]江西省地质调查研究院,江西南昌330030

出　　处：《物探与化探》2018年第5期932-936,共5页Geophysical and Geochemical Exploration

基　　金：中国地质调查局项目(1212010881619;1212011120881;12120114057001)

摘　　要：地球化学普查在区域地质矿产调查中是一项主要又重要的工作方法,不但能够为基础地质提供理论指导或推断佐证,而且更为倚仗的是能为矿产发现、环境问题等提供直接证据。地球化学普查的技术方法是先后在DZ/T0011-91、DZ/T0011-2015两个时期的规范下指导实施的。笔者在从事该项工作中发现,不同时期、不同人员在样品采集、分析测试、数据解释等几个关键环节中存在部分理解差异,致使不能全部科学地反映地球化学信息,而真实有效的采样(样品具代表性)、数据准确的测试(成果具可靠性)、科学预测的解释(具实用性)为地球化学普查工作中的关键所在。As a main and important method in regional geological survey,geochemical survey can not only offer theoretical guidance or inference based geological evidence but also provide direct evidence for mineral resources. The technology was implemented in two periods of specification guidance,i.e.,DZ/T 0011-91,DZ/T 0011-2015. In this study,the authors find that there exist some differences in the key links of sample collection,analysis,test and data interpretation in different periods and different working processes by different workers,and hence the results might fail to fully reflect the geochemical information. The authors believe that the real and effective sampling（ sample representation）,accurate data testing（ reliability of results）,and scientific interpretation of prediction constitute the key to geochemical survey work.

关 键 词：地球化学普查 1∶50 000水系沉积物测量 数据评估 监控样 

分 类 号：P632[天文地球—地质矿产勘探]