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通过对长江三角洲及其邻近区域埋藏古土壤、潮坪、长江下游河道漫滩、舟山滨岸风成沙丘、南京黄土古土壤序列沉积体的磁组构测量统计分析,取得了各自的标志特征。该标志特征揭示出,舟山滨岸风成沙丘与南京黄土古土壤序列沉积的搬运介质能量位相基本一致,其物源来向却显示出巨大差异;上述两类沉积体与上述现今潮坪、河道漫滩沉积体的搬运介质能量位相及物源来向均显示出绝然不同的标志特征。然而漫滩物源来向与南京黄土的物源来向却有众多相似之处;上述区域埋藏古土壤搬运介质的能量位相及物源来向与滨岸潮坪的相似,与舟山及南京的风成沉积相差甚远。上述标志特征揭示表明,其埋藏古土壤母质沉积与该区域风介质搬运及物源来向之间存在明显不同,却与水介质搬运及物源来向存在着亲缘关系。
Through the statistical analysis of the magnetic fabric of buried ancient soils in the Yangtze River Delta and its adjacent area, tidal flat, flood plain in the lower reaches of the Yangtze River, windy dunes on the bank of Zhoushan, and paleosol sequences of loess in Nanjing, their own signatures were obtained. The characteristics of the sign reveal that the energy phases of the transport medium deposited on the Zhoushan coast and the Nanjing Loess paleosol sequence are basically the same, but the origin of the sediment shows a great difference. The above two types of sedimentary bodies and the above-mentioned tidal flat, The sediment transport body floodplain energy phase and the source to show all distinct signs of the characteristics. However, there are many similarities between the source of floodplain and the origin of loess in Nanjing. The energy phases and sources of buried soil transporting media in the above regions are similar to that of the tidal flat in the coastal area, Aeolian deposition is far behind. The revelation of the above signatures shows that there is a clear difference between the deposition of the buried ancient soil parent material and the source of the wind medium and the origin of the wind medium. However, it is related to the transport and source of the water medium.