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普安县不同岩组类型对区域土壤侵蚀景观格局的影响 被引量:1
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作者 黄朝海 高华端 +1 位作者 付婧 徐永服 《水土保持研究》 CSCD 北大核心 2019年第2期31-36,共6页
以普安县白云岩、石灰岩、砂页岩和玄武岩等不同岩组区域的土壤侵蚀景观作为研究对象,基于ArcGIS软件中Spatial Analysis拓展模块空间分析技术及景观生态学中的景观格局空间分析方法,从宏观空间尺度上研究了不同岩组类型对区域土壤侵蚀... 以普安县白云岩、石灰岩、砂页岩和玄武岩等不同岩组区域的土壤侵蚀景观作为研究对象,基于ArcGIS软件中Spatial Analysis拓展模块空间分析技术及景观生态学中的景观格局空间分析方法,从宏观空间尺度上研究了不同岩组类型对区域土壤侵蚀景观格局的影响。结果表明:普安县岩组分布特征是以白云岩为主,其次是石灰岩,砂页岩和玄武岩面积较少;石灰岩区总体侵蚀程度不高,但是局部侵蚀较为严重。普安县土壤侵蚀景观格局特征表现为:微度侵蚀是4种地层岩组土壤侵蚀景观的景观基质,微度侵蚀景观斑块在空间分布上集中连片、异质性低、均匀度指数高,极强度侵蚀与剧烈侵蚀最大面积比例与斑块面积都是最小,斑块在空间分布上距离都较远且及其破碎,连通性较低。普安县不同岩组土壤侵蚀景观格局存在差异,白云岩区景观最为破碎,具有较高的异质性;石灰岩区侵蚀斑块分布较为集中;玄武岩区具有最高的多样性,斑块间的信息交流最为频繁。 展开更多
关键词 普安县 岩组类型 土壤侵蚀 景观格局
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LA-ICP MS Characteristic of Geochemical Composition of Veins Rocks from the Central Part of the Khibina Massive in Kola Peninsula, Northern Russia
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作者 Milosz Huber 《Journal of Chemistry and Chemical Engineering》 2014年第4期364-370,共7页
This paper discusses the vein rocks located in the central part of Khibina Mts.. These rocks are located on the border of two zones: ore and external. In the ore, zone is present titanite-nepheline bodies whilst in t... This paper discusses the vein rocks located in the central part of Khibina Mts.. These rocks are located on the border of two zones: ore and external. In the ore, zone is present titanite-nepheline bodies whilst in the outer zone are massive-syenites "khibinites". The veins can be divided into: mikrosyenites, melteigites and other rock types (e.g., tinguaites). The results of LA-ICP MS (laser ablation of inductively coupled plasma mass spectrometry) indicate that these rocks are associated with deep zones which formed as a result of injection of primary magma and contamination of fluids during migration, where there have hydrothermal processes. Rock-forming minerals, their corrosion and accessory minerals indicate these processes, too. 展开更多
关键词 Khibina Massive Kola Peninsula vein rocks geochemistry.
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