Under guidance of the model for porphyrite iron deposit and the metallogenic theory of the large-scale ore intensive areas,combined with systematic researches on the metallogenic characteristics and rule,the area delineated jointly by 1∶50000 aeromagnetic anomaly and gravity anomaly was the result of verification using drilling based on the 1∶10000 geomagnetic survey.This discovery is also one of the important breakthroughs in the Middle and Lower of Yangtze River two decades.Exploration results show that t...