阿根廷米纳毕戈塔斯地区1:250 000地球化学数据集

米纳毕戈塔斯地区（Mina Pirquitas）地处阿根廷西北部的安第斯山区，位于阿根廷西北部的新生代铜（金）及多金属成矿带内，是安第斯成矿带的组成部分。该区的岩性多样，火山岩、侵入岩发育，地质构造复杂，成矿地质条件优越，是阿根廷最主要的铜金等金属矿产资源的分布区。2010-2014年中国地质调查局与阿根廷地质调查局合作开展1：250 000地球化学示范研究，在米纳比戈塔斯地区采集了2470件水系沉积物和土壤样品，采样粒级为-10目~+60目，平均采样密度1.01个/4 km²。采用X射线荧光光谱法、等离子质谱法、原子荧光光谱法、发射光谱法、石墨炉原子吸收分光光度法和离子选择性电极法等分析了39种元素和氧化物，编制了单元素地球化学图和综合异常图，最终形成阿根廷北部米纳毕戈塔斯地区1：250 000地球化学集，包含有2 470件样品×39种元素（氧化物）的原始分析数据表格一个，地球化学图集一套（含有1张地质图、一张采样点位图和39张元素（氧化物）地球化学图）。新发现单元素地球化学异常487处，综合异常52处，并圈出了具进一步工作价值的找矿远景区。这些数据和图件对该区的找矿、基础地质研究和环境工程等具有重要参考利用价值。

Argentine Mina Pirquitas 1: 250 000 Geochemistry Dataset

Mina Pirquitas, situated in the Andes Mountain of northwest Argentina, and within the Cenozoic Cu (Au) and polymetal metallogenic belt, is a part of Andes metallogenic belt. The region is diverse in lithology, well developed in volcanic and intrusive rocks, complex in geological structure, advantageous in metallogenic geological conditions, and thus the most prominent distribution region of metallic mineral resources such as Au and Cu in Argentina. From 2010 to 2014, China Geological Survey (CGS) and Argentina Geological Survey (AGS) cooperated on 1:250 000 geochemistry research demonstration during which 2 470 fluvial sediment and soil samples were collected in Mina Pirquitas at a sample grain-size ranging between -10 meshes and +60 meshes and at a mean sampling density of 1.01 samples/4 km². 39 elements and oxides were analyzed with X-ray fluorescence spectroscopy, plasma-mass spectrometry, atomic fluorescence spectrometry, atomic emission spectrometry, graphite furnace atomic absorption spectrometry and ion selective electrode method, and single-element geochemical maps and comprehensive anomaly maps were plotted. A total of 487 locations with single-element geochemistry anomaly and 52 locations with comprehensive anomaly were discovered and prospective mineral areas worthy of further investigation were delineated. These data and maps are important for reference to mineral exploration, fundamental geological research, and environmental engineering in the region.