The geological term for a diaper structure formed by evaporate minerals such as halite is "salt diapir" or "salt dome".

Here's a breakdown:

* Diapir: This term generally refers to any geological structure where a less dense material rises through denser surrounding rock.

* Salt: Halite (NaCl), the primary component of table salt, is a very common evaporate mineral.

* Diapir Structure: Salt, being less dense than most surrounding rock, can rise up in a mushroom-like structure.

These salt diapirs can be significant for several reasons:

* Oil & Gas Exploration: Salt domes often trap oil and gas, making them prime exploration targets.

* Mineral Resources: Salt itself is a valuable resource.

* Geological Hazards: Salt movement can cause seismic activity and deformation of the surrounding landscape.

Let me know if you'd like to learn more about salt diapirs!