What terrestrial process closely resembles the desiccation occurring to organic material on Mars?

Answer

Mummification.

The combination of low pressure causing evaporation and extreme cold locking away residual moisture results in aggressive drying of the tissues, mirroring the process seen in arid terrestrial environments where bodies are rapidly dried.

What terrestrial process closely resembles the desiccation occurring to organic material on Mars?
MarsSpacedecompositionbodyastrobiology