These were mainly in basal cistern, cerebral longitudinal fissure and Sylvian fissure.
积血主要在基底池、纵裂前上方和侧裂内。
2
In the overlying basalt, there is high dip and wide tension fissure zone, which is combined with surface of unconformity which is as basal sliding face, to form loosening rock mass.
在上覆玄武岩层中见有高倾角的宽张裂隙带，与不整合面一起构成松动岩体，不整合面为底滑面。
3
Conclusions It is should be noted that the SAH after head trauma, especially in the basal cistern or Sylvian fissure, is probably produced by the rupture of intracranial aneurism.