Columnarjoint blocks are formed by two sets of joints.
“长柱状”节理块是由两组节理组成。
2
Columnarjoint structure, as considered by various researchers long since, is only possible to develop in basic lava with low viscosity and high nuidity.
柱状节理构造历来被众多学者认为只能发育在粘度小、流动性大的基性熔岩中。
3
Columnarjoint, microfissure and gently dipping structural surface are the three fundamental factors which lead to the small deformation modulus of basaltic mass.