矿区及外围土壤地球化学测量采样深度与粒度方法试验--以江西省九江市城门山铜矿为例  

Examination of sampling depth and granularity on geochemical soil survey at mining and external areas——Taking the Chengmenshan copper mine,Jiujiang City,Jiangxi Province,China as an example

作　　者：贾先巧[1] 张丽春[1] 任利民[1] 王磊[1] 龚敏[1] 马振东[1] 

机构地区：[1]中国地质大学地球科学学院．湖北武汉430074

出　　处：《地质通报》2009年第7期963-969,共7页Geological Bulletin of China

基　　金：中国地质调查局《资源与环境地球化学勘查与评价方法技术研究和推广》子项目(编号:1212010660404)资助

摘　　要：土壤地球化学测量是在重要成矿带开展深部及外围地球化学找矿的重要方法之一。为了获取无人为活动扰动的自然的、清晰的成矿和成晕信息,又要在一定程度上控制工作量,开展矿区及外围土壤剖面的深度与粒度采集试验是必须的。对江西九江城门山铜矿湿润低山丘陵景观条件下土壤剖面的深度与粒度的采样试验研究表明:①土壤采样的深度以40～50cm为宜;②土壤各层Cu元素没有明显的富集粒级,为此野外仅采集-20目(<0.84mm)的样品即可满足工作要求。Geochemical soil survey is one of the most important techniques in geochemical prospect for developing at the depth and periphery of some significant metallogenic belts. In order to get the natural and clear information of mineralization zoning without artificial interference, and control the workload to some extent, it＇s necessary to expefimentalize of the depth and granularity in soil pro- file. According to the experiment of the depth and granularity in soil profile on the deposit of Chengmenshan copper mine, Jiujiang City, Jiangxi Province, in condition of humid low mountains and hills landscape, the study shows that： ① The sampling depth should be set at about 40-50cm; ② There is no obvious concentration grains of element Cu in different soil layers, it＇s only need to collect - 20 mesh （〈0.84mm） soil samples in the outdoors to gain the work demands.

关 键 词：土壤地球化学测量 深度 粒度 

分 类 号：P632.1[天文地球—地质矿产勘探]