Mudcracks in
sludge, the remains of a
sewage treatment plant in
Kos, Greece. Mudcracks naturally form when wet, muddy
sediment
desiccates, causing contraction through a decrease in
tensile strength. Individual cracks join up, forming a
polygonal, interconnected network. These cracks may later be filled with new sediment, forming
casts on the base of the overlying bed.Photo:
Hannes Grobe
Mudcracks in
sludge, the remains of a
sewage treatment plant in
Kos, Greece. Mudcracks naturally form when wet, muddy
sediment
desiccates, causing contraction through a decrease in
tensile strength. Individual cracks join up, forming a
polygonal, interconnected network. These cracks may later be filled with new sediment, forming
casts on the base of the overlying bed.Photo:
Hannes Grobe