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。
Columnar joint structure, as considered by various researchers long since, is only possible to develop in basic lava with low viscosity and high nuidity.
柱状节理的成因是熔岩冷却收缩形成的,由于受到种种内外因素制约,形成的柱状节理形态各异。
The primary genetic mechanism for the joints is the condensing shrinkage. Controlled by different factors, the eventual shapes of columnar joints are quite varied.
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