摘要
采用共轭剪节理应力反演方法,恢复了邯郸—峰峰矿区晚古生代以来的3期古构造应力场,进而探讨了煤田构造的演化历史,将其分为4大阶段:①中生代早期近NS向挤压,煤系后期改造初动期;②中生代晚期SE-NW向挤压,奠定煤田构造格架的基础;③中生代末至古近纪NW-SE向拉张,煤田构造格架定型;④新近纪以来近东西向拉张,煤田构造的现代活动。
Based on the stress estimate method of conjugate shear joints, the three periods of tectonic stress fields since Late Paleozoic in Handan-Fengfeng coal mining area were reconstructed, and the evolution history, of coalfield structures was studied.① Coal measures started deformation under the about N-S directional compression during Early Mesozoic, ② The basic framework of coalfield structure was settled under SE-NW directional compression during Late Mesozoic, ③ Tectonic framework of coalfield were established by NW-SE directional stretch from the end Mesozoic to Palaeogene. ④ Re-activity of coalfield structure by about E-W directional stretch since Neogene.
出处
《中国煤田地质》
2005年第5期1-3,共3页
Coal Geology of China
关键词
构造应力场
构造演化
煤田构造
邯郸-峰峰矿区
Handan-Fengfeng coal mining area
tectonic stress field
tectonic evolution
coalfield structure
