Abstract:

Fujiawu copper mine is one of the largest porphyry deposits in form of strip mining in China，in addition to the main ore-forming elements，such as Cu，Mo，moreover，it contains useful components （partner） like Au，Ag，Re as well as Co.Through analysis of surface geochemical profile samples from the mine by testing trace elements，Au and Ag，it is found that the average values of Re and Ag in granite diorite porphyry are much better than that of the phyllite，however，the average level of Co，Au are higher in phyllite than that of the granite diorite porphyry.Re is primarily in the rock mass near the contact zone of porphyry，and Co is closely relative to outside of the contact zone，namely，weak alteration zone.Au is gathered in the outside of the contact zone，while，we find that Ag is with higher concentration both inside and outside the contact zone.Four groups of ore factor are corresponding to the mineralization of Cu-Ag-Zn-In，Er-Y-Ce-Pr-Ho-Eu-Gd-Tm-Dy-Y-La-Nd-Tb-Sm-Lu-Re-Mo-Cd-U，Co-Ni and |Au|-W，respectively.

Key words: Fujiawu copper deposit, associated elements, alteration zone, distribution regularity, factor analysis