| 南极Fildes半岛成土过程中不同时期的岩石风化趋势 |
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| 作者姓名： | CHEN Jie GONG Zi-Tong |
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| 作者单位： | [1]InstituteofSoilScience,AcademiaSinica,Nanjing210008,China [2]InstituteofSoilScience,AcademiaSinica,Nanji |
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| 基金项目： | *1Project supported by the former Natiopal Antarctic Expedition Committee. |
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| 摘 要： | From the view of energy state of material,this paper introduces a concept a concept of weathering potential in carrying out quantitative calculation of the relevant products at different stages of rock-weathering and primary soil-forming processes,elaborates respectively on weathering degree in the bio-weathering layer of rocks and during the formation of soil material and clay,and evaluats the further tendency of weathering in the above-mentioned stages.The authors have discovered that the scales of weathering potential of the materials increase successively in the three stages,which indicates that the products in the above-mentioned three stages must have undergone stronger and stronger weathering in the primitive forming process of soil in Fildes Peninsula,Antarctic.But,Because of relatively weak chemical weathering,it is reasonable that there are much more skeleton grains and little clay in priamry soils in this region.Meanwhile the authors have also verified that the weathering potential of crde rock determines to some extent decrease in the products‘ weathering potential in the different stages in primary soil-forming,thereby plays an important role in the genesis and development of the primary soil in the studied area.
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| 关 键 词： | 南极 费尔德斯半岛 土壤形成过程 阶段性 岩石风化趋势 |
Rock weathering tendency at different stages of soil-forming processes in Fildes Peninsula, Antarctic |
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| CHEN Jie,GONG Zi-Tong.Rock weathering tendency at different stages of soil-forming processes in Fildes Peninsula, Antarctic[J].Pedosphere,1996,6(1):29-34. |
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| Authors: | CHEN Jie and GONG Zi-Tong |
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| Institution: | [1]InstituteofSoilScience,AcademiaSinica,Nanjing210008,China [2]InstituteofSoilScience,AcademiaSinica,Nanji |
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| Abstract: | From the view of energy state of material, this paper introduces a concept of weathering potential in carrying out quantitative calculation of the relevant products at different stages of rock-weathering and primary soil-forming processes, elaborates respectively on weathering degree in the bio-weathering layer of rocks and during the formation of soil material and clay, and evaluats the further tendency of weathering in the above-mentioned stages. The authors have discovered that the scales of weathering potential of the materials increase successively in the three stages, which indicates that the products in the above-mentioned three stages must have undergone stronger and stronger weathering in the primitive forming process of soil in Fildes Peninsula, Antarctic. But, because of relatively weak chemical weathering, it is reasonable that there are much more skeleton grains and little clay in primary soils in this region. Meanwhile, the authors have also verified that the weathering potential of crude rock determines to some extent decrease in the products' weathering potential in the different stages in primary soil-forming, thereby plays an important role in the genesis and development of the primary soil in the studied area. |
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| Keywords: | Antarctic primary soil weathering potential |
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