一、磨坑——秀岭断裂带的基本情况:北东东向的磨坑——秀岭断裂带东自广东紫金县义容循南西西向延伸进入东江谷地,经河唇、雍州一带,继续达博罗县泰美圩以北之秀岭地区,前人称它为横坑——磨坑断裂或磨坑断裂.该断裂带除砂岭——观音阁数公里段地表显示不清外,基本出露良好,累计总长达50公里。义容往东可能经青溪至紫金分为二支:一支由北东东偏北延伸;另一支取道中坝向安流 First, the grinding pit - the basic situation of the Xiu-ling fault zone: north east east of the grinding pit - Xiu-ling fault zone east of Zijin County, Guangdong Yi ruminan southwest extends into the East River valley, the river lip, Yongzhou area, continue In the area north of Taibuwei in Taboruo County, Xiu Ling area, formerly known as Hengkeng - Mukeng fault or Mukeng fault, shows that the surface of the fault zone, Lu good, totaling a total of 50 km. Yung Yung may be divided into two parts by the Qingxi to Zijin: one from the north east eastward extension of the other;