条目 in Jebal um Ejil

The mountain south of Khazareh canyon in the Um Ishrin Massif

Sandstone becomes brittle when wet because it absorbs water, this effects its internal structure. Once the rock surface is totally dry, you need to wait another 24 hours before climbing, this gives time for the absorbed water to also evaporate and the rock to regain its strength.

Sandstone becomes brittle when wet because it absorbs water, this effects its internal structure. Once the rock surface is totally dry, you need to wait another 24 hours before climbing, this gives time for the absorbed water to also evaporate and the rock to regain its strength.