11. Common seals include evaporites , chalks and shales. 12. Evaporite minerals, especially nitrate minerals, are economically important in Peru and Chile.13. Kieserite commonly occurs in marine evaporites and rarely in volcanic environments as a celestine. 14. Sylvite is found in many evaporite deposits worldwide. 15. The oldest and perhaps most interesting was created from evaporites deposited from evaporating seawater. 16. Surface expressions are composed of evaporites rocks, plus igneous rocks and quartzitic sandstone. 17. Regarding these works, a deep water formation for central Messinian evaporites seems unlikely. 18. The evaporites served later as major decollement horizons. 19. Diatomites are regularly found underneath the evaporite deposits, suggesting a connection between their geneses. 20. During this period of evaporation large evaporite deposits will be made in the rift valley.
