Analysis of the relation of granite and faults to gold deposits in the Neixiang area, southwestern Henan, China

This paper gives a relatively complete description of the structural setting, geological characteristics, ore-controlling structures and ore fluids of the gold deposits (occurrences) in the endo- and exocontact zones of the Wuduoshan granite intrusion in the Neixiang area, southwestern Henan. The authors think that the relation between granite and gold deposits is not direct but indirect, while the control of faults on gold deposits is most important and all of the mineralizations in the area are controlled by faults. The endo- and exocontact zones of the intrusion, areas of fault structure and zones with abundant pyrite and metal sulfides around the Wuduoshan intrusion, especially in the southwestern part of the intrusion, are areas favorable to looking for gold deposits.