地质调查显示该地区有大量的铁矿沉积。

The geological survey revealed significant ___deposits of iron ore in the area.

久坐的生活方式可能导致脂肪沉积的积累。

A sedentary lifestyle can lead to the accumulation of fat ___deposits.

河流在洪泛区留下了一层厚厚的淤泥沉积。

The river left a thick ___deposit of silt on the floodplain.