On the other hand, some of the large outflow channels begin in rubble-filled low areas called chaos or chaotic terrain.

The flood surface was now the most shattered chaotic terrain she had ever seen, the ice pulverized to a plain of wicked shards.

Many of the channels begin in chaotic terrain, where the ground has apparently collapsed.

Various geological processes have reduced it to a circular area of chaotic terrain.

I had reached a place of chaotic terrain.

However this new model convects oxygen with other nutrients down much faster, first to the water pockets under the chaotic terrain, then to the whole ocean.

The greatest concentrations of chaotic terrain are in the same locations as giant, ancient river valleys.

Many different theories have been advanced for how floods of water came to be released with the formation of chaotic terrain.

Underground volcanism may have melted frozen ice; the water then flowed away and the ground just collapsed to leave chaotic terrain.

Conamara Chaos is a region of chaotic terrain on Jupiter's moon Europa.