阳泉矿区基于分形理论的构造复杂程度定量评价

摘要

Using the fractal theory and the grid covering method,the structure of Yangquan mining area was counted,and the fractal dimension value Ds was obtained.The fractal dimension contour map of Yangquan mining area was drawn by using Surfer,the complexity of Yangquan mining area's structure was analyzed, and the transformation from traditional qualitative evaluation to more scientific quantitative evaluation was achieved.Research shows:the value of the synthetic index X of complex degree in the study area is mainly distributed in the 0.5 to 1.2,so the overall structural complexity is general;the area with complex structure is mainly distributed in the triangular region consist of Yangquan, Baokou, Niangziguan and the right side of Shangshe.Combined with the regional tectonic evolution history and fractal dimension contour map,it is found that the distribution of tectonic stress and fractal dimension is basically the same in the region.It is determined that the quantitative evaluation of tectonic complexity by using fractal theory is feasible.%采用分形理论和网格覆盖法对阳泉矿区的构造进行统计,得出分维值Ds,然后利用Surfer软件绘制阳泉矿区分维值等值线图,对阳泉矿区构造复杂程度进行分析,实现了由传统的定性评价向更为科学的定量评价的转变.研究表明:研究区域内的构造复杂程度综合指数X的值主要分布在0.5～1.2之间,整体构造复杂程度一般;构造程度复杂的区域主要分布在阳泉、娘子关和包口组成的三角区域内和土塔以及上社的右侧.结合区域构造演化史和分维值等值线图,发现构造应力与分维值在区域内的分布基本吻合,确定了使用分形理论对区域进行构造复杂程度的定量评价切实可行.