Grain-size Fractal Characteristics of TSG Holocene Profile and Its Significance in Eastern Guanzhong
On the basis of fractal theory and grain-size data, this paper analyzed the fractal dimensions of panicle in TSG Holocene profile. The results showed that there was a fractal feature of TSG Holocene profile in Eastern Guanzhong Basin. The whole profile fractal dimension value was between 2.5443 and 2.7123, with the highest average value in the paleosol （So）. The higher values of grain-size fractal dimension reflected warm and humid climate, the lower values reflected arid and cold. The fraetal characteristics indicated the change of environment during Holocene in Eastern Guanzhong. It showed that granularity fractal dimensions were relative lower in the Early Holocene, with an arid and cold environment. In the Mid-Holocene fractal dimensions were much higher, with an average of 2.6713, so climate was warm and humid, and pedogenesis was stronger. In the stage of Late Holocene, fractal dimension values were slight dropped, and soil particle size was increased, with a low degree of self-organization, so climate became relatively arid, and a weak pedogenesis, but the fractal dimension was much higher than that in the last glacier.
NETL
NSTL
万方数据
维普
