潞安矿区构造格局及构造演化

TECTONIC FRAMEWORK EVOLUTION IN LUAN MINE AREA

山西省潞安矿区盖层构造格局具有东西分带、南北分段的基本特点，构造变形强度由东向西递增，由单斜过渡为轴向近南北的宽缓褶曲，由正断层过渡为逆断层，断层走向由北东东和北西向过渡为近南北向。基底构造和区域构造应力场是控制盖层构造格局的两个基本因素；煤田构造的形成和发展经历了３个主要阶段。

The tectonic framework in Luan mine area is characterized by zoning in E-W direction and subdistricting in N-S direction. The deformation strength increased from east to west of Luan area.Structure transformed from monocline of N-S trend into gentle folds. The normal faults of NEE/NW strike were substituted by thrusts of N-S strike. The basement tectonics and regional tectonic stress fields are two fundamental factors for control of overburden tectonic framework. The formation and evolution can be divided into three main stages.