Salt forms in restricted environments dominated by evaporation. The term salt mostly refers to a crystalline aggregate of halite but actually includes all evaporitic deposits that are mobile in the subsurface, though it is important to note that there are differences in rheology and behaviour between the different evaporitic deposits. The main property of salt strongly influencing hydrocarbon exploration, is that it can deform rapidly reacting on slopes ≤0.5° dip and behaving much like a viscous fluid. It is deformed mainly by differential sedimentary or tectonic loading. As salt can deform rapidly, salt basins evolve and deform in a more complex manner.
K. Rodriguez, N. Hodgson
82nd EAGE Annual Conference & Exhibition