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Title
Mudcrack #124599326
Description
Naturally forming mudcracks start as wet, muddy sedimentÃÂ dries upÃÂ and contracts. A strain is developed because the top layer shrinks while the material below stays the same size. When this strain becomes large enough, channel cracks form in the dried-up surface to relieve the strain. Individual cracks spread and join up, forming a polygonal, interconnected network. These cracks may later be filled with sediment and formÃÂ castsover the base.