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.
Allow circulation process to continue until chlorine is detected from hose. Once chlorine level is strong, wash down the inner walls of the well with the hose and shut off. Now replace cover on well. NOTE: A shallow well generally circulates within 1/2 hour, a deeper, drilled well can sometimes take a couple of hours.