Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

POLYTYPE AND TYPOMORPHIC CHARACTERISTICS OF MOLYBDENITE FROM LALA Fe-OXIDE-Cu-Au-Mo-Co-REE DEPOSIT IN SICHUAN PROVINCE, CHINA

WANG Jiang-zhen~( 1), LI Ze-qin~( 1),LIU Jia-jun~(2); LI Chao-yang~(3)(1.Chengdu University of Technology, Chengdu, 610059, China;2.China University of Geosciences, Beijing 100083, China; 3. Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China)  
So far Lala is the exclusivel Fe-Oxide-Cu-Au-Mo-Co-REE deposit reported in China. Molybdenum mineralization is very strong in the deposit. Lala deposit contains about 20 Mt ore of average Mo, 0.03%. It has been determined by X-ray that molibdenite from the deposit is 2H+3R and 2H types (see to Fig.1 and Table 1). The averages content of Se, Te, and Cu in 2H+3R molybdenite is 0.16%, 0.06%, and 0.39%, respectively. The average content of these elements in 2H molybdenite is 0.05%, 0.03%, and 0.24%, respectively. The content of Re in the 2H+3R molybdenite ranges from 111.88×10~(-6) to (121.50)×10~(-6). The lead isotope ratios of molybdenite from the deposit vary considerably, ~(206)Pb/(~(204))Pb?~(207)Pb/~(204)Pb?~(208)Pb/~(204)Pb are 0.622~70.573, 17.719~19.100, and 43.013~46.324, respectively. The sulfur isotope composition, δ~(34)S‰, range from 1.82 to 2.25.It is suggested that molybdenite and chalcopyrite and other sulfides are of the same source and genesis.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved