Dahenan granite mass with an outcrop area of about 900 Km 2 is located in the northern part of Taihang Mountains.

Wenyu gold deposit of Henan Province,located in the center of Xiaoqinling gold field,is quartz vein type hosted in Archean Taihua group,including more than 80 ore veins The trend analysis of comprehensive information suggests that Vein No 505 is horizontally the central zone of elementray geochemical field The central zone deviates northward(to Vein No.

In the Gongyu gold deposit features, orebodies are hosted in the altered fracturing zones.

Application of sublevel stoping in Jin-Chang-Yu Gold Mine;

Study on geological feature of YuErYa Gold Deposit;

Based on ore body occurrence pattern bellow 205m level in Yuerya gold deposit is put forward in the paper that further ore exploration to depth should be directed to contacts of the buried batholith,surrounding of apophyses extending long distance into the country rock,top of the red granite and where lithology is changed,intersection of foot wall of dyke and the ore-host structures,etc.