论文部分内容阅读
嘉山管店—全椒龙王尖断裂表现为多条蚀变剪切带,镜下碎斑旋转变形明显,为“б”型,发育石英布丁构造。构造岩透射电镜分析结果进一步证实了该断裂的存在并具深断裂的特征。糜棱岩形成的差应力和应变速率及运动指向与郯庐断裂带内的糜棱岩相近。分析表明这条断裂是郯庐断裂带派生断裂,其形成与郯庐断裂左行平移有关。它控制燕山期花岗岩产出空间,指示郯庐断裂带左行平移可能发生在印支晚期。深断裂的属性使其成为金矿重要的区域控矿构造。
The Jiashan tube shop - Quanjiao Longwang pointed fracture showed multiple alteration shear bands, and the microscopic rotation of the spot was obvious. It was a “б” type and developed a quartz pudding structure. Tectonic rock transmission electron microscopy analysis results further confirmed the existence of the fault and deep fracture characteristics. The difference in stress and strain rate and movement direction of mylonites are similar to mylonites in the Tan-Lu fault zone. Analysis shows that this fault is derived from the fault of Tancheng-Lujiang fault zone and its formation is related to left-lateral translation of the Tan-Lu fault. It controls the Yanshanian granite production space, indicating that the left-lateral translation of the Tan-Lu fault zone may occur in the late Indosinian period. The properties of deep fractures make it an important regional ore-controlling structure in gold mines.