| 湖南下寒武统黑色页岩风化释Si的机制与潜力 |
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| 引用本文： | 宋照亮.湖南下寒武统黑色页岩风化释Si的机制与潜力[J].环境科学与管理,2009,34(11):21-25,170. |
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| 作者姓名： | 宋照亮 |
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| 作者单位： | 浙江林学院,环境科技学院,浙江,临安,311300;中国科学院地球化学研究所,环境地球化学国家重点实验室,贵州,贵阳,550002 |
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| 基金项目： | 国家自然科学基金，浙江省自然科学基金，浙江林学院科学研究发展基金，环境地球化学国家重点实验室开放基金 |
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| 摘 要： | 岩石风化释Si的机制和潜力是Si全球生物地球化学循环研究的重要问题。在湖南安化、洞口、桃江和望城等地采集了下寒武统黑色页岩样品,并选取了麻田（MT）、桃花江（TH）和廖家坪（LJ）等3条风化剖面,运用R型聚类分析和质量平衡计算等方法,研究了黑色页岩风化释Si的机制与潜力。结果表明,湖南下寒武统黑色页岩SiO2含量平均63.4%,略高于上陆壳（62.6%）。MT剖面中Si的释放、淀积行为与磷酸盐矿物和含铁矿物（或铁氢氧化物等）的溶解、沉淀有关,LJ剖面Si的释放、淀积行为与含K硅酸盐矿物和有机质的溶解、沉淀有关。TH剖面Si表现出的强淋溶行为,则与上述组分的关系不显著。湖南地区每风化1 kg下寒武统黑色页岩至少可释放12 g-252 g活动态Si,风化释Si的潜力巨大。
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| 关 键 词： | 硅（Si） 释放 风化 黑色页岩 湖南 |
Mechanisms and Potentiality of Silicon Release during Weathering of the Lower Cambrian Black Shales in Hunan,China |
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| Song Zhaoliang.Mechanisms and Potentiality of Silicon Release during Weathering of the Lower Cambrian Black Shales in Hunan,China[J].Environmental Science and Management,2009,34(11):21-25,170. |
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| Authors: | Song Zhaoliang |
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| Institution: | Song Zhaoliang1,2(1.School of Environmental Sciences , Technology,Zhejiang Forestry College,Lin\'an 311300,China,2.State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academyof Sciences,Guiyang 550002,China) |
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| Abstract: | Mechanisms and potentiality of silicon release during rock weathering are important issues in silicon global biogeochemical cycling research.The study sampled the Lower Cambrian Black Shales from Anhua,Dongkou,Taojiang and Wangcheng,Hunan,selected weathering profiles of Matian(MT),Taohuajiang(TH)and Liaojiangping(LJ),and discussed mechanisms and potentiality of silicon release during black shale weathering with methods of R-type cluster analysis and mass balance calculation etc.It is revealed that the avera... |
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| Keywords: | silicon(Si) release weathering black shales Hunan |
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