【摘要】 以全新世以来鄱阳湖盆地沉积体系为基础,发现在鄱阳湖盆地边缘沉积体系呈现不对称性,垂向系列上呈现旋回性。经研究认为,盆地的造盆作用及区域构造决定了盆地的不对称性,从而造成沉积体系的不同;第四纪以来四次大的气候旋回对应着湖平面的四次扩张与萎缩,从而造成沉积物在垂向序列上呈现旋回性。更多还原

【Abstract】 Based on the sedimentary system of Poyang Lake basin from Holocene,the sedimentary system of the margin of Poyang Lake basin presents asymmetry,and shows cyclicity in vertival series.The research on the forming of Poyanghu basin shows that the asymmetry of the basin was caused mainly by the basinogenesis and regional structure,consequently resulted in the distinctness of sedimentary system.The four expanding and atrophy of the lake corresponding to the four great climatic cyclicities resulted in the vertical cyclicity of the sediment.更多还原