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陈玉明, 陈秀法. 2018. 阿根廷米纳毕戈塔斯地区1:250 000地球化学数据集[J]. 中国地质, 45(S2): 83-92. doi: 10.12029/gc2018Z210
引用本文: 陈玉明, 陈秀法. 2018. 阿根廷米纳毕戈塔斯地区1:250 000地球化学数据集[J]. 中国地质, 45(S2): 83-92. doi: 10.12029/gc2018Z210
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CHEN Yuming, CHEN Xiufa. 2018. Argentine Mina Pirquitas 1: 250 000 Geochemistry Dataset[J]. Geology in China, 45(S2): 83-92. doi: 10.12029/gc2018Z210
Citation: CHEN Yuming, CHEN Xiufa. 2018. Argentine Mina Pirquitas 1: 250 000 Geochemistry Dataset[J]. Geology in China, 45(S2): 83-92. doi: 10.12029/gc2018Z210
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阿根廷米纳毕戈塔斯地区1:250 000地球化学数据集

  • 中国地质调查局发展研究中心, 北京 100037

  • 基金项目:
    中国地质调查局地质调查项目“海上丝绸之路重点地区有色金属资源潜力评价”（DD20160118），国外风险勘查资金工作项目“中阿合作阿根廷西北部地区1：25万地球化学调查”（科合201210A06200202）和“阿根廷西北部地区铜（金）矿资源潜力调查与评价”（科合10262A002）联合资助
详细信息
    作者简介: 陈玉明, 男, 1963年生, 高级工程师(教授级), 硕士研究生, 主要从事矿产资源的风险勘查; E-mail:844192807@qq.com

Argentine Mina Pirquitas 1: 250 000 Geochemistry Dataset

  • Development and Research Center of China Geological Survey, Beijing 100037, China

  • Fund Project: jointly funded by CGS geological survey project "Elevation of Nonferrous-metal Resource Potential in Prioritized Region Along Maritime Silk Road"(DD20160118), the project "Northwest Argentine 1:250 000 Geochemistry Survey under Sino-Argentine Cooperation" (Kehe 201210A06200202) under foreign venture exploration fund and "Survey and Elevation of Cu (Au) Mineral Resource Potential in Northwest Argentina" (Kehe 10262A002)
More Information
    Author Bio: CHEN Yuming, male, born in 1963, senior engineer (professor level) and MD, mainly engages in venture exploration of mineral resources; E-mail: 844192807@qq.com .

    摘要

  • 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。

    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.

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  • 图 1  阿根廷米纳毕戈塔斯工作区位置图

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    图 2  阿根廷米纳毕戈塔斯地区铜元素地球化学图

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    图 3  阿根廷米纳毕戈塔斯地区地质子区分区图

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    Figure 1. 

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    Figure 2. 

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    Figure 3. 

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    表 1  数据库(集)元数据简表

    下载: 导出CSV

    表 2  阿根廷米纳毕戈塔斯地区元素地球化学分析数据表[1]

    下载: 导出CSV

    表 3  阿根廷米纳毕戈塔斯地区各地质子区元素参数特征对比表

    下载: 导出CSV

    表 4  分析方法的检出限以及分析元素报出率

    下载: 导出CSV

    Table 1.  Simplified metadata table of the database (dataset)

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    Table 2.  Argentine Mina Pirquitas element geochemistry analytical datasheet[1]

    下载: 导出CSV

    Table 3.  Characteristic comparison in element parameters of geological sub-regions

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    Table 4.  Detection limits of analysis methods and the reported percent of analyzed elements

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出版历程
收稿日期:  2018-07-31
修回日期:  2018-11-10
刊出日期:  2018-12-25

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