An assessment of placer Os-Ir-Ru alloys and sulfides as an indicator of sulfur fugacity in a primitive stage of ophiolite mantle

Journal of Asian Earth Sciences

Volumn 15, Issue 2-3, 1997, Pages 311-315

  Nakagawa, Mitsuru ^a   Franco, Helenita E A ^b  

^a GEOLOGICAL SURVEY OF JAPAN   (Japan)

^b Mines and Geosciences Bureau Philippines   (Philippines)

Author keywords

[No Author keywords available]

Indexed keywords

OIDIUM; OPHIOLITE MANTLE; OSMIUM; PLACER; RUTHENIUM; SULFUR FUGACITY;

EID: 0031404208     PISSN: 13679120     EISSN: None     Source Type: Journal    
DOI: 10.1016/s0743-9547(97)00016-0     Document Type: Article

References (30)

1. Amossé J., Allibert M., Ostrosi B., Qoku E. and Lleshi B. (1992) Geochemical behavior and mineralogy of PGE in the Krasta deposit (Albania). C. R. Acad. Sci. Paris 315, Ser. II, 559-564. (In French with English abstract).
2. Asahina T. and Komatsu M. (1979) The Horokanai ophiolitic complex in the Kamuikotan Tectonic Belt, Hokkaido, Japan. J. Geol. Soc. Japan 85, 317-547.
3. Augé T. (1985) Platinum-group-mineral inclusions in ophiolitic chromitite from Vourinos complex, Greece. Can. Mineral. 23, 163-171.
4. Bird J. M. and Bassett W. A. (1980) Evidence of a deep mantle history in terrestrial osmium-iridium-ruthenium alloys. J. Geophys. Res. 85, 5461-5470.
5. BMG (1981) Geology and Mineral Resources of the Philippines, Vol. I, Geology. Bureau of Mines and Geo-sciences, Manila, 406 pp.
6. Burgath K. P. (1988) Platinum-group minerals in ophiolitic chromitites and alluvial placer deposits, Meratus-Bobaris area, Southeast Kalimantan. In: Geo-Platinum 87, (edited by Prichard H. M. et al.) pp. 383-403. Elsevier, London.
7. Cabri L. J. and Harris D. C. (1975) Zoning in Ir-Os alloys and the relation of the geological and tectonic environment of the source rocks to the bulk Pt:Pt + Ir + Os ratio for placers. Can. Mineral. 13, 266-274.
8. Constantinides C. C., Kingston G. A. and Fisher P. C. (1979) The occurrence of platinum-group minerals in the chromitites of the Kokkinorotsos chrome mine, Cyprus. In: Ophiolites (edited by Panayiotou A.), pp. 93-101. Proc. Int. Ophiolite Symp., Cyprus.
9. Corrivaux L. and Laflamme J. H. G. (1990) Mineralogie des elements du groupe du platine dans les chromitites de l'ophiolite de Thetford Mines, Quebec. Can. Mineral. 28, 579-595 (In French with English abstract).
10. Ford R. J. (1981) Platinum-group minerals in Tasmania. Econ. Geol. 76, 498-504.
11. Franco H. E. A., Nakagawa M., Esguerra E., Lazo F. B., Domingo E. G. and Togashi Y. (1993) Platinum-group minerals in laterite overlying the ultramafic massif in Eastern Samar and Dinagat island, Philippines. Res. Geol. Spec. Issue 15, 149-156.
12. Garcia M. V. and Mercado J. M. O. (1981) Geology and mineral resources of Samar and Leyte Islands. J. Geol. Soc. Philippines 35(4), 1-33.
13. Hagen D., Weiser Th. and Htay T. (1990) Platinum-group minerals in Quaternary gold placers in the upper Chindwin area of Northern Burma. Mineral. Petrol. 42, 265-286.
14. Harris D. C. and Cabri L. J. (1973) The nomenclature of the natural alloys of osmium, iridium and ruthenium based on new compositional data of alloys from worldwide occurrences. Can. Mineral. 12, 104-112.
15. Harris D. C. and Cabri L. J. (1991) Nomenclature of platinum-group-element alloys: Review and revision. Can. Mineral. 29, 231-237.
16. Katoh T. and Nakagawa M. (1986) Tectogenesis of ultramafic rocks in the Kamuikotan tectonic belt, Hokkaido, Japan. Monograph Assoc. Geol. Collab. Japan 31, 119-135 (in Japanese with English abstract).
17. Komatsu M., Tazaki K. and Kuroda Y. (1977) Ophiolite suite rocks on some ophiolite belts in Japan. Intern. Symp. Geodynamic in South-west Pacific, Noumea (New Caledonia), 1977, ed. TECHNIP, Paris, 3-13.
18. Legendre O. and Auge T. (1986) Mineralogy of platinum-group mineral inclusions in chromitites from different ophiolitic complexes. In: Metallogeny of Basic and Ultrabasic Rocks (edited by Gallagher M. J. et al.), pp. 361-375. Inst. Mining Metall., London.
19. Nakagawa M. and Ohta E. (1995) Preponderance of Ir-Os-Ru alloys in depleted ophiolite, Hokkaido, Japan: A window to the mantle. Res. Geol. Spec. Issue 18, 49-56.
20. Nakagawa M., Ohta E. and Kurosawa K. (1991) Platinum-group minerals from the Mukawa serpentinite, southern Kamuikotan belt, Japan. Mining Geol. 41, 329-335.
21. Nakagawa M. and Toda H. (1987) Geology and petrology of Yubari-dake serpentinite melange in the Kamuikotan tectonic belt, central Hokkaido, Japan. J. Geol. Soc. Japan 93, 733-748.
22. Ohta E. and Nakagawa M. (1990) Placer PGE alloys from Fukuyama, Hobetsu, Hokkaido, Japan. Bull. Hobetsu Museum 6, 15-23 (in Japanese with English abstract).
23. Peck D. C. and Keays R. R. (1990) Geology, geochemistry, and origin of platinum-group element-chromitite occurrences in the Heazlewood River Complex. Tasmania. Econ. Geol. 85, 765-793.
24. Prichard H. M., Neary C. R. and Potts P. J. (1986) Platinum-group minerals in the Shetland ophiolite. In: Metallogeny of Basic and Ultrabasic Rocks (edited by Gallagher M. J. et al.), pp. 395-414. Inst. Mining Metall., London.
25. Takian M. (1987) Compositional variations and reflectance of the common platinum-group minerals. Mineral. Petrol. 36, 169-190.
26. Stumpfl E. F. and Tarkian M. (1973) Natural osmium-iridium alloys and iron-bearing platinum: new electron probe and optical data. N. Jb. Miner. Mh. 7/8, 313-322.
27. Stumpfl E. F. and Tarkian M. (1976) Platinum genesis: New mineralogical evidence. Econ. Geol. 71, 1451-1460.
28. Suzuki J. (1952) Ultra-basic rocks and associated ore deposits of Hokkaido, Japan. J. Fac. Sci. Hokkaido Univ., Ser. IV 8, 175-210.
29. Tarkian M. (1987) Compositional variations and reflectance of the common platinum-group minerals. Mineral. Petrol. 36, 169-190.
30. Westland A. D. (1981) Inorganic chemistry of the platinum-group elements. In: Platinum-Group Elements: Mineralogy, Geology, Recovery (edited by Cabri L. J.), Canadian Institute of Mining and Metallurgy Spec. Vol. 23, pp. 6-18.