| 云南泸沽湖矿物学沉积记录及其环境辨识意义 |
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| 引用本文： | 张实,万国江.云南泸沽湖矿物学沉积记录及其环境辨识意义[J].矿物学报,1997,17(2):183-193. |
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| 作者姓名： | 张实 万国江 |
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| 作者单位： | 中国科学院广州地球化学研究所!广州，510640，中国科学院广州地球化学研究所!广州，510640，中国科学院地球化学研究所!贵阳，550002 |
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| 基金项目： | 国家自然科学基金!49333040 |
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| 摘 要： | 通过对泸沽湖矿物学沉积记录的精细剖析发现，泸沽湖的物质沉积过程相对稳定，沉积物粒度分布、矿物组成与组合沉积记录在纵向上的变化均具明显的韵律性，矿物结构与化学沉积记录也表现出规律性的变化特点。在泸沽湖上述矿物学沉积记录的典型特征基础上，通过对这些记录的环境标志性特征、环境辨识可适性等的探索性研究，在200，100和50a短时间尺度上，比较准确地重建了泸沽湖区域气候与环境演化的历史谱系，探讨了全球性气候因子对泸沽湖区域气候与环境变迁的控制
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| 关 键 词： | 泸沽湖 矿物学沉积记录 气候与环境演化 |
MINERALOGICAL RECORDS AND THEIR ENVIRONMENTAL ASPECTS OF LUGU LAKE,YUNNAN PROVINCE |
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| Zhang Shi, Xie Xiande, Wan Guojiang.MINERALOGICAL RECORDS AND THEIR ENVIRONMENTAL ASPECTS OF LUGU LAKE,YUNNAN PROVINCE[J].Acta Mineralogica Sinica,1997,17(2):183-193. |
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| Authors: | Zhang Shi Xie Xiande Wan Guojiang |
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| Abstract: | This paper presents a detailed study on .mineralogical records in. the sediments of LuguLsake, Yunnan Province. Results indicate that. the Process of material sedimentation is relativelystable. Size distribution, mineral composition and assemblage vary periodiclly in the LG94O7O6~7 core. Structural and chemical records of some minerals tend to change regularly in this core aswell. On the basis of the established mineralogical records, we have discussed the aspects and util-ity concerning the environmental indication of the records in this paper. Finally, we have reconstructed the history of climatic and environmental changes on a short time scale (2OO, 1OO and 5Oyears) from mineralogical records. Information shows that the climatic and environmental changesin the Lugu Lake area are controlled by global climatic factors. |
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| Keywords: | Lugu Lake mineralogical records climatic and environmental changes |
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