The gold placer minerals in the northern Tibet originated from intermediate acid magmatic rock contact areas,sedimentary stratigraphic unconformity contact areas and silicified rock areas.

• 藏北地区砂金矿矿质来源于中酸性岩浆岩接触带、沉积地层不整合接触带及硅化岩带,具物源近、成矿时代新的特点。