@article{oai:ir.kagoshima-u.ac.jp:00000896,
 author = {NEDACHI, Munetomo and MALAGUN, Salam},
 journal = {南太平洋海域調査研究報告=Occasional papers},
 month = {2016-10-27},
 note = {The data are not yet enough to lend to conclusion on the environment of mineralization of Ok Tedi ore deposit. However, it can be said that the Ok Tedi porphyry copper mineralization
is characterized by high F content, in contrast to other porphyry copper deposits in island arc systems. F and other incompatible elements might have concentrated through acidic magmatism
strongly contaminated with crustal materials. F is good for exploration, as mentioned by Dr. P.M.AFENYA (personal communication, 1989).
Nevertheless the high HCl/H_2O fugacity ratio might be an essential feature of the Ok Tedi mineralization, as is recognized elsewhere.
Acknowledgements: The authors wish to thank Dr. Rod JONES, Chief Geologist of Ok Tedi
mining Ltd. for the kind invitation to the mine. They are also grateful to Prof. H.L.DAVIES of University of PNG, Mr. Tom WELSH, Principal Geologist of Geological Survey of PNG, and Dr. P.M.AFENYA of PNG University of Technology, for thier kind offer of valuable informations.
They are indebted to Dr. Laurence P. JAMES of BHP-Utah Japan Inc., for manuscript correction.
They thank Mr. Tohru SHIN-YAMA for his help on electron probe microanalysis.},
 pages = {13--18},
 title = {Preliminary Study on Halogen Elements of the Ok Tedi Porphyry Copper Deposit, Papua New Guinea},
 volume = {20},
 year = {}
}