الفترة:
Subjects: Clay minerals; Clays; Heavy minerals; Iraq
Subjects: Bricks; Clays; Density; Iraq; Soil physics
Subjects: Carbonate rocks; Iraq
Subjects: Ceramic materials; Iraq; Kaolinite
Subjects: Basins; Groundwater; Iraq; Precipitation; Rain
Subjects: Artificial satellites; Hammar Marshes; Iraq; Remote sensing; Swamps