Abstract:

Geotectoniclly,Hadamengou gold deposit is the Yinshan apophysis level of Inner Mongolia axis middle part on the west segment of northern edge of Huabei platform.So far the explored volume of resources has reached at 70 t.The piedmont potassic zone,which is a potash K-feldspathization alteration fracture zone,located in the southern part of the ore district.In a period of time,it's believed that piedmont K-feldspathization zone is the main ore-conduit structure,and it is NE-direction.But the relationship between deep-occurrence and vein is unclear. By field survey,the paper research that it is NW-direction or NWW-direction.Method of geophysical electrical prospecting section shows that the upside of deep-occurrence is steep and underpart is gentle.The ore vein is dissected deeply.By studying and analyzing the forming time of piedmont K-feldspathization zone and ore vein,we think that it is not much possible gold ore-conduit structure which is piedmont major fault.

Key words: Hadamengou gold deposit, Piedmont K-feldspathization zone, Left-handed shear, Inner Mongolia