Why Do Salt Flats Form Hexagonal Cracks During Dry Season?

为什么盐滩在旱季会形成六边形裂纹？

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When shallow saline lakes evaporate completely, thin salt crusts shrink unevenly due to differential moisture loss across the surface.
Cracks begin at stress points and propagate outward until they meet neighboring fractures at nearly 120-degree angles.

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