| 全国区域化探数据库 |
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| 引用本文： | 向运川,牟绪赞,任天祥,刘荣梅,吴轩.全国区域化探数据库[J].中国地质,2018,45(S1):32-44. |
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| 作者姓名： | 向运川 牟绪赞 任天祥 刘荣梅 吴轩 |
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| 作者单位： | 中国地质调查局发展研究中心, 北京 100037,中国地质调查局, 北京 100037,中国地质科学院物化探研究所, 河北 廊坊 065000,中国地质调查局发展研究中心, 北京 100037,中国地质调查局发展研究中心, 北京 100037 |
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| 基金项目： | 中国地质调查局项目“全国区域地球化学系列图编制”项目（200120130092）与国土资源大调查项目“全国重要矿产资源潜力评介”（1212010633904）联合资助。 |
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| 摘 要： | 全国区域化探数据库首次汇集了全国28个省（自治区、直辖市）的1∶20万和1∶50万区域化探39种元素和氧化物的测试数据，共计数据点142万个，近5 540万个数据，涉及1∶20万图幅1 299个，1∶50万图幅18个，在国内第一次建立了地球化学海量数据库。全国矿产资源潜力评价项目对数据库进行了更新，使全国区域化探数据库汇集数据总量达147万余条记录，数据达6 321万。在此基础上，编制了4万多张各类地球化学系列图件，并建立了空间数据库，为地球化学研究和矿产资源预测相关专业提供了丰富的地球化学信息。该项成果的取得为在全国范围内研究区域地球化学分布、生态环境、基础地质和找矿远景规划提供了最基础的资料。
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| 关 键 词： | 全国 区域化探 水系沉积物 地球化学数据 空间数据库 |
| 收稿时间： | 2018/1/10 0:00:00 |
| 修稿时间： | 2018/1/20 0:00:00 |
China Regional Geochemical Exploration Database |
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| XIANG Yunchuan,MOU Xuzan,REN Tianxiang,LIU Rongmei and WU Xuan.China Regional Geochemical Exploration Database[J].Chinese Geology,2018,45(S1):32-44. |
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| Authors: | XIANG Yunchuan MOU Xuzan REN Tianxiang LIU Rongmei and WU Xuan |
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| Affiliation: | Development and Research Center of China Geological Survey, Beijing 100037, China,China Geological Survey, Beijing 100037, China,institute of Geophysical and Geochemical exploration, Chinese academy of Geological Sciences, Langfang 065000, China,Development and Research Center of China Geological Survey, Beijing 100037, China and Development and Research Center of China Geological Survey, Beijing 100037, China |
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| Abstract: | China Regional Geochemical Exploration Database is the first one of its kind that synthesizes the testing data of 39 elements and their oxides from the regional geochemical exploration respectively at scales of 1:200, 000 and 1:500, 000, covering 28 provinces (autonomous regions and municipalities directly under the central government). It features nearly 55.4 million pieces of data collected from 1.42 million data points. The data involves 1, 299 map sheets at scale of 1:200, 000 and 18 map sheets at 1:500, 000. It is China''s first massive geochemistry database. The national mineral resources potential evaluation project updated the database, making the national geochemical exploration database cover over 1.47 million records of aggregated data, with the data reaching 63.21 million records. On this basis, more than 40, 000 geochemical maps have been compiled, and a spatial database has been established to provide rich geochemical information for carrying out geochemistry research and predicting mineral resources. This pioneering work is of great significance to improve the level of geochemical exploration and research in China. It provides the most fundamental data for studying regional geochemical distribution of metallogenic elements, ecological environment, and basic geology, as well as for mineral resources prospecting throughout China. |
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| Keywords: | national regional geochemical exploration stream sediment geochemical data spatial database |
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