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分形是研究复杂地质地球物理问题的手段之一。本文利用分数布朗噪声模型，采用能谱法，计算了吉林东部重力异常的分维数，分维数等值图为地质体的划分提供了新的证据。
Fractal is one of the means to study complex geological geophysical problems. In this paper, fractal dimension of the gravity anomaly in the eastern part of Jilin Province is calculated by using the fractional Brownian noise model and the energy spectrum method. The fractal dimension equivalent map provides new evidence for the division of the geological body.