潘西井田19#煤层小断层发育规律
Small Faults Development Law in No.19 Coal Seam of Panxi Mine Field
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摘要: 以潘西井田地质统计资料为依据，揭示了井田内小断层的发育具有分区性、方向性、成带性等特点。利用走向玫瑰花图以及断层分形方法，对井田内的小断层力学成因及复杂性进行了分析。研究表明，井田断裂构造线方向主要为NW、NE和近南北向，且形成时期不一致，NE向切割NW向断层，近南北向切割NW、NE断层。井田构造总体较为复杂，分维值大多在0.8～1.7之间，全区的分维值可达1.34。其中，低值区域主要分布在井田北部梁坡断层附近。Abstract: Through the statistical analysis of geological data in Panxi Mine Field, the development laws of small faults have characteristics such as regionalization, directivity, and zonation and so on. By using the rose diagrams and the method of fractal structure, mechanical causes and complexity of small faults in mine field have been analyzed. Research shows that the fault structure develops three main groups of NW, NE and approximately SW trending fractures in this area, NE-striking faults cutting NW-striking faults, nearly NS-striking faults cutting NW and NE-striking faults. The overall pattern of structure is more complicated. The fractal dimension values of minefield structural complexity are mostly between 0.8 and 1.7, and the fractal dimension value of the whole region reaches 1.34. Among them, the low-value areas are mainly distributed near Liangpo fault in the northern coal mine field.
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Keywords:
- small faults /
- development law /
- Panxi Mine Field /
- geological structure /
- fractal character
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