So, the extension fractures were often distributed together with shear fractures, and the tension fractures were developed partly with lens veins filled by asphaltum or calcite.

 
  • 而拉張裂縫的形成要求至少最小主應力是張應力,通常呈透鏡狀局部發(fā)育,并被瀝青、方解石等脈體充填。
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