神马作文网英语翻译ABSTRACT:Field studies,in particular mobile metal ion an
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英语翻译
ABSTRACT:Field studies,in particular mobile metal ion analysis of soil samples taken over mineralization,suggest that subtle geochemical anomalies exist above mineral deposits which are demonstrably covered by allochthonous material such as glacial till.Empirical observations suggest that the anomalies are preferentially located 10 to 25 cm below the soil interface,comprise elements contained in ore,and are located directly above the mineralizing source.Laboratory experiments suggest that capillary rise and evaporation play an important part in determining the position of emplacement of ions in the soil profile:in nature,root-zone transpiration also plays a part in solute deposition/adsorption within the evapo-transpiration zone.The effects of downward-percolating water after rainfall events,as well as the upward force of capillary rise,are considered in a model which explains many of the features of ion emplacement in soils.Laboratory modelling also suggests that convection,perhaps due to the heat produced by oxidation of the deposit,may in some cases provide a mechanism for rapid ascension of ions beneath the water table.
ABSTRACT:Field studies,in particular mobile metal ion analysis of soil samples taken over mineralization,suggest that subtle geochemical anomalies exist above mineral deposits which are demonstrably covered by allochthonous material such as glacial till.Empirical observations suggest that the anomalies are preferentially located 10 to 25 cm below the soil interface,comprise elements contained in ore,and are located directly above the mineralizing source.Laboratory experiments suggest that capillary rise and evaporation play an important part in determining the position of emplacement of ions in the soil profile:in nature,root-zone transpiration also plays a part in solute deposition/adsorption within the evapo-transpiration zone.The effects of downward-percolating water after rainfall events,as well as the upward force of capillary rise,are considered in a model which explains many of the features of ion emplacement in soils.Laboratory modelling also suggests that convection,perhaps due to the heat produced by oxidation of the deposit,may in some cases provide a mechanism for rapid ascension of ions beneath the water table.
实地研究,特别是对移动金属离子矿化采取土壤样品分析,显示了这一微妙的地球化学异常上述矿藏是明显的异地材料覆盖到,如冰川存在.经验观察表明,在异常优先位于10至25厘米以下的土壤界面,包括在矿石中包含的元素,并且直接成矿源位于上方.实验室的实验表明,毛细管上升和蒸发在决定进驻的离子在土壤剖面位置的一个重要组成部分：性质,根区蒸腾也起着溶质沉积在部分/吸附在土壤水分蒸发,蒸腾区.降雨事件后的影响向下渗滤水,以及毛细管上升向上的力量,被认为是在一个模型,解释了离子布设在土壤中的许多功能.实验室模拟还表明,对流,也许是因为由存款氧化产生的热量,可在某些情况下提供了一个快速提升离子水位下的机制.
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