| 四川万源地区硒的地球化学特征 |
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| 引用本文： | 倪师军,张成江,徐争启,何愿,胡泉明.四川万源地区硒的地球化学特征[J].矿物岩石,2007,27(4):39-44. |
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| 作者姓名： | 倪师军 张成江 徐争启 何愿 胡泉明 |
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| 作者单位： | 1. 成都理工大学,四川,成都,610059
2. 四川省万源市科技局,四川,万源,636365 |
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| 摘 要： | 利用针对万源地区不同类型岩石、土壤以及茶叶样品进行系统的硒元素含量分析,研究其在岩石、土壤及农作物中的地球化学特征,结果表明万源地区震旦系岩石的硒质量分数最富(0.548×10-6),其次是寒武系(0.274×10-6),最贫为志留系(0.044×10-6);而不同岩性中硒质量分数最高的是页岩(0.355×10-6),碳酸盐岩次之(0.113×10-6),砂岩中最少(0.088×10-6)。土壤中硒质量分数最高为大竹河地区(万源地区东北部,0.51×10-6),大部分片区高于(大竹河、青花0.39×10-6、旧院0.3×10-6等片区)或接近(草坝0.14×10-6、竹峪0.16×10-6等片区)全国土壤平均值(0.215×10-6),属中硒含量水准。对茶叶中硒质量分数的分析表明除草坝(0.068×10-6)、竹峪(0.052 8×10-6)较低,大竹河片区种植的茶叶(0.104 6×10-6)与陕西紫阳富硒茶叶(0.105 8×10-6)的含量水平相近,证实万源地区有发展特色富硒农产品的基础条件。
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| 关 键 词： | 土壤 硒 地球化学 富硒带 万源 |
| 文章编号： | 1001-6872（2007）04-0039-06 |
| 收稿时间： | 2007-10-15 |
| 修稿时间： | 2007-12-05 |
GEOCHEMICAL CHARACTERISTICS OF SELENIUM IN WANYUAN AREA, SICHUAN PROVINCE |
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| NI Shi-jun,ZHANG Cheng-jiang,XU Zheng-qi,HE Yuan,HU Quan-ming.GEOCHEMICAL CHARACTERISTICS OF SELENIUM IN WANYUAN AREA, SICHUAN PROVINCE[J].Journal of Mineralogy and Petrology,2007,27(4):39-44. |
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| Authors: | NI Shi-jun ZHANG Cheng-jiang XU Zheng-qi HE Yuan HU Quan-ming |
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| Institution: | NI Shi-jun1,ZHANG Cheng-jiang1,XU Zheng-qi1,HE Yuan1,HU Quan-ming21.Chengdu University of Technology,Chengdu610059,China,2.Science and Technology Bureau of Wanyuan,Wanyuan636365,China |
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| Abstract: | Different types of rocks and soils were systematically sampled in different locations of Wanyuan region,together with the specific farm product of tea samples and the selenium contents in rock,soil and tea samples were determined in line with national standard.Based on the investigation of geochemical characteristics of selenium in rock and soils,the concentration of selenium is analyzed,the Se standard of Wanyuan soil is defined and the Se-rich strata and Se-rich zone are determined.In addition,the selenium content in specific farm product,such as the tea,is discussed by comparing it with related regions.Finally,constructive suggestion for the development of Se-rich farm product in Wanyuan region is proposed. |
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| Keywords: | soil selenium geochemistry Se-rich zone Wanyuan region compared with other researchers |
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