Abstract The Sino–Zambian Cooperation project provides national catchment sediment geochemical data for 58 elements including Cu and Co from 746 sediment samples at 736 sampling sites, corresponding to a sampling density of about 1 site per 1000 km2. The Cu and Co were determined by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) under strict quality control using field duplicates, standard reference materials and analytical replicate samples. The 95% ranges (2.5%–97.5%) of Cu and Co concentrations were from 1.8 to 57.81 × 10−6 and from 0.54 to 22.83 × 10−6, respectively, reflecting locally unevenness distributions. The median values of Cu and Co are 5.77 × 10−6 and 2.98 × 10−6, respectively. The most noticeable anomalous patterns of Cu and Co are distributed between Lusaka and Solwezi (Lufilian Arc Belt) with the trend of increasing concentrations from southeast to northwest. The all spatial distribution patterns of Cu and Co in tectonic units, drainage basins and geomorphological landscapes show good relations with parent rocks, climate, Cu (Co) deposits and smelting plants in Lufilian Arc Belt. The Cu and Co concentrations show metallogenic belts in Mkushi area, between Lusaka and Solwezi areas, and in Livingstone area.

中文翻译：

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赞比亚低密度地球化学填图显示的铜、钴富集特征

摘要 中赞合作项目提供了736个采样点的746个沉积物样品中Cu、Co等58种元素的全国流域沉积物地球化学数据，对应的采样密度约为每1000平方公里1个点。Cu 和 Co 是通过电感耦合等离子体质谱法 (ICP-MS) 在严格的质量控制下使用现场复制品、标准参考材料和分析复制品进行测定的。Cu 和 Co 浓度的 95% 范围（2.5%–97.5%）分别为 1.8 至 57.81 × 10-6 和 0.54 至 22.83 × 10-6，反映了局部不均匀分布。Cu 和 Co 的中值分别为 5.77 × 10-6 和 2.98 × 10-6。最显着的铜、钴异常分布在卢萨卡和索尔韦齐（卢菲利亚弧带）之间，浓度从东南向西北增加。铜、钴在构造单元、流域盆地和地貌景观中的所有空间分布格局均与卢菲连弧带母岩、气候、铜（钴）矿床和冶炼厂有良好的关系。Cu和Co浓度显示Mkushi地区、Lusaka和Solwezi地区之间以及Livingstone地区的成矿带。