Magnetite has been important in understanding the conditions under which rocks form. Magnetite reacts with oxygen to produce hematite, and the mineral pair forms a buffer that can control oxygen fugacity. Commonly, igneous rocks contain solid solutions of both titanomagnetite and hemoilmenite or titanohematite.
Definition of relief well. : a vertical drain used for the drainage of a deep pervious stratum to relieve waterlogging of the surface soil.
Springs are often confused with flowing artesian wells. An artesian well is a hole or boring that has been drilled into a water-bearing formation or aquifer that is under pressure. The water in an artesian well rises above the top of the aquifer (water-bearing formation) until the pressure is equalized.