NASA's Mars rover Curiosity has been exploring the sulfate-bearing unit and has detected minerals and elemental concentrations consistent with the presence of various salts.
In a recent plan, Curiosity will analyze rock targets named "Salton Sea", "Wellman Divide", "Goodykoontz", and "Paseo del Mar" to determine the presence of salty minerals.
Curiosity will also document the layers of rock in buttes and mesas through imaging, which will help with interpretation when encountered on the ground.
The atmospheric scientists have planned coordinated observations to measure argon and oxygen, as well as standard atmospheric monitoring activities.