Trace elements of the associated ilmenite show relatively high MnO and low MgO contents, just opposite to those of ilmenite in V_Ti_magnetite ores of magmatic origin.

• 钛铁矿微量元素的特点是富锰贫镁，和岩浆型钒钛磁铁矿中钛铁矿的微量元素正好相反。