secondary fracture

Certain secondary cracks closely related with local whisker groupware found on the fracture surface.

断口上有相当数量与局域晶须群密切相关的二次裂纹.

The fracture-hole double medium porosity mode develops distinctly in the research area, fracture and secondary bole-hole are the most important reservoir type and accumulating space for oil.

贝尔凹陷布达特群地层裂缝&孔（洞）双介质储集特征明显，裂缝和次生孔洞是布达特群潜山储集层的重要储集类型和储集空间。

And natural mineral water is the most probably found in fracture zone, secondary fissure structure zone, marble and intermediate basic rock area and Quaternary system with good waterproof bed at the base

提出了断裂破碎带及其次级构造裂隙发育区、大理岩、中基性火山岩分布区及第四系底部有良好的隔水层地区是本区矿泉水最有利的找矿靶区