Petrological and metallogenic outlines of the Valmaggia ultramafic pipe (Ivrea zone), NW Alps, Italy

Periodico di Mineralogia

Volumn 71, Issue 3, 2002, Pages 219-239

  Fiorentini, Marco L ^a,c   Grieco, Giovanni ^a   Ferrario, Alfredo ^a   Tunesi, Annalisa ^b  

^a UNIVERSITY OF MILAN   (Italy)

^b UNIVERSITY OF MILANO BICOCCA   (Italy)

^c UNIVERSITY OF WESTERN AUSTRALIA   (Australia)

Author keywords

Ivrea; Nickel; Ore deposit; Peridotite; PGE

Indexed keywords

EID: 53149149228     PISSN: 03698963     EISSN: 22391002     Source Type: Journal    
DOI: None     Document Type: Article

References (33)

1. AMOSSÉ S., ALLIBERT M., FISHER W. and PIBOULE M. (1987) - Etude de Vinfluence des fugacités d'oxygène et de soufre sur la deifferenciation des platinoides des magmas ultramafiques: resultats preliminaires. C.R. Acad. Sci. Paris, 304,1183-1185.
2. BARNES S.J., BOYD R., KORNELIUSSON A., NILSSON L.P., OFTEN M., PEDERSEN R.B. and ROBINS B. (1988) - The use of mantle normalization and metal ratios in discriminating between the effects of partial melting, crystal fractionation and sulphide segregation on platinum-group elements, gold, nickel and copper: examples from Norway. In: Prichard, H.M., Potts, P.J., Bowles, J.F.W. and Cribb, S.J. (eds) Geo-platinum. Barking, UK: Elsevier Applied Science, 113-143.
3. BEA F. and MONTERO P. (1999) - Behaviour of accessory phases and redistribution ofZr, REE, Y, Th and U during metamorphism and partial melting of metapelites in the lower crust: an example from the Kinzigite Formation of Ivrea-Verbano, NW Italy. Geochim. Cosmochim. Acta 63,1133-1153.
4. BIINO G. G. and MEISEL T. (1996) - Ar-Ar, Re-Os, Rb-Sr, Sm-Nd and U-Pb isotopic, trace element and petrologic study of alkaline mineralized ultramafic pipes in the Ivrea Verbano zone (Italy). Sch. Min. Pet. Mitt., 76, 98-99.
5. FERRARIO A., GARUTI G. ET AL. (1982) - Platinum and palladium in the Ivrea-Verbano basic complex, Western Alps, Italy. A further issue devoted to the platinum-group elements. Econ. Geol., 77, 1548-1555.
6. FERRARIO A., GARUTI G., ROSSI A. and SINIGOLFI G. P. (1983) - Petrographic and metallogenic outlines of the "La Balma-M. Capio" ultramafic body (Ivrea-Verbano basic complex, N.W. Italian Alps, in Schneider, H.J. ed., Mineral Deposits of the Alps: Soc. Geologie Applique Mineral Deposits Spec. Pub. 3, 28-40.
7. FERRARIO A., FIORENTINI M., GRIECO G. and TUNESI A. - «Fe-Ni-Cu-Pge sulfide deposit of the valmaggia ultramafic body, Ivrea-Verbano Zone, NW Italy». 31st international geological congress, Rio De Janeiro, Brazil, 2000, P. 159, ABS.
8. FIORENTINI M. (1999) - Studio petrografico-giacimentologico del pipe ultrafemico di Valmaggia (Varallo), Valsesia. Unpub. Honours Thesis, University of Milan, 150 pp.
9. FLEET M.E., CHRYSSOULIS S.L., STONE W.E. and WEISENER C.G. (1993) - Partitioning of platinum-group elements and Au in the Fe-Ni-Cu-S system: experiments on the fractional crystallization sulfide melt. Contrib. Minral. Petrol., 115, 36-44.
10. GARUTI G. (1977) - The origin of the Ivrea-Verbano basic formation (Italian Western Alps); microstructural data on peridotites from the area ofSesia Valley. Rend. Soc. It. Mineral. Petrol, 33, 601-616.
11. GARUTI G. and RIVALENTI G. ET AL. (1980) - The Ivrea-Verbano mafic ultramafic complex of the Italian Western Alps; discussion of some petrologic problems and a summary. Rend. Soc. It. Mineral. Petrol, 36, 717-749.
12. GARUTI G., FIANDRI P. ET AL. (1986a) - Sulfide composition and phase relations in the Fe-Ni-Cu ore deposits of the Ivrea-Verbano basic complex (Western Alps, Italy). Mineral. Dep., 21, 22-34.
13. GARUTI G. and RINALDI R. (1986b) - Mineralogy of melonite-group and other tellurides from the Ivrea-Verbano Basic Complex, Western Italian Alps. Econ. GeoL, 81, 1213-1217.
14. GARUTI G., NALDRETT A.J. and FERRARIO A. (1990) - Platinum-group elements in magmatic sulfides from the Ivrea Zone; their control by sulfide assimilation and silicate fractionation. Econ. GeoL, 85, 328-336.
15. GARUTI G., BEA F., ZACCARINI F. and MONTERO P. (2001) - Age, geochemistry and petrogenesis of the ultramafic pipes in the Ivrea Zone, NW Italy. J. Petrol., 42, 433-457.
16. GRIECO G., FERRARIO A., VON QUADT A., KOEPPEL V. and MATHEZ E.A. (2001) - The zircon-bearing chromitites of the phlogopite peridotite of finero (Ivrea Zone, Southern Alps): evidence and geochronology of a metasomatized mantle slab. J. Petrol., 42, 89-101.
17. HAGGERTY S.E. (1995) - Upper mantle mineralogy. J. Geodyn., 20, 331-364.
18. HARTMANN G. and WEDEPOHL K.H. (1993) - The composition of peridotite tectonites from the Ivrea Complex, northern Italy; residues from melt extraction. Geochim. Cosmochim. Acta 57, 1761-1782.
19. IONOV D. (1998) - Trace element composition of mantle-derived carbonates and coexisting phases in peridotite xenoliths from alkali basalts. J. Petrol, 39, 1931-1941.
20. KEAYS RR. (1995) - The role of picritic magmatism and S-saturation in the formation of ore deposits. Lithos, 34, 1-18.
21. LORAND JEAN-PIERRE and ALARD O. (2001) - -Platinum-group element abundances in the upper-mantle; New constraints from in situ and whole-rock analyses of Massif Central xenoliths (France). Geochim. Cosmochim. Acta, 65, 2789-2806.
22. MENZIES M.A. (1990) - Archean, proterozoic and phanerozoic lithospheres. In Menzies M.A. ed. "Continental Mantle", Oxford Press, 67-86.
23. NALDRETT A.J. and DUKE J.M. (1980) - "Platinum metals in magmatic sulfide ores." Science 208, 1417-1424.
24. NALDRETT A.J. (1989) - "Magmatic Sulphide Deposits." New York: Oxford University Press.
25. PECK D.C. and KEAYS R.R. (1990) - Insight into the behaviour of precious metals in primitive S undersaturated magmas: Evidence from the Heazlewood River Complex, Tasmania. Can. Mineral., 28, 553-577.
26. PIN C. (1986) - Dotation U-Pb sur zircons a 285 M.a. du complexe gabbro-dioritique du Val Sesia-Val Mastallone et age tardi-hercynien du metamorphisme granulitique de la zone Ivrea-Verbano (Italie). C. R. Acad. Sci., Serie II, 303, 827-830.
27. PIN C. and J. D. SILLS (1986) - Petrogenesis of layered gabbros and ultramafic rocks from Val Sesia, the Ivrea Zone, NW Italy; trace element and isotope geochemistry. The nature of the lower continental crust. Dawson, B; Carswell, A; Hall and J; Wedepohl. London, United Kingdom, Geological Society of London. 24,231-249.
28. QUICK J.E., SINIGOI S., MAYER A. (1994) - Emplacement dynamics of a large mafic intrusion in the lower crust, Ivrea-Verbano Zone, northern Italy. J. Geophys. Res., B, 99, 21559-21573.
29. RIVALENTI G., GARUTI G. and ROSSI A. (1975) - The origin of the Ivrea-Verbano basic formation (western italian Alps) - whole rock geochemistry. Boll. Soc. Geol. It., 94, 1149-1186.
30. RIVALENTI G., ROSSI A., SIENA F. and SINIGOI S. (1984) - The Layered Series of the Ivrea-Verbano Igneous Complex, Western Alps, Italy. Tschermaks Min. Petr. Mitt., 33, 77-99.
31. SCHNETGER B. (1994) - Partial melting during the evolution of the amphibolite-to-granulite-facies gneisses of the Ivrea Zone, northern Italy. Chem. GeoL, 113, 329-348.
32. SINIGOI S., QUICK J.E., CLEMENS-KNOTT D., MAYER A., DEMARCHI G., MAZZZUCCHELLI M., NEGRINI L. and RIVALENTI G. (1994) - Chemical evolution of a large mafic intrusion in the lower crust, Ivrea-Verbano Zone, northern Italy. J. Geophys. Res., 99,21575-21590.
33. VOSHAGE H., HOFMANN A.W., MAZZUCCHELLI M., RIVALENTI G., SINIGOI S., RACZEK I. and DEMARCHI G. (1990) - Isotopic evidence from the Ivrea Zone for a hybrid lower crust formed by magmatic underplating. Nature, 347, 731-736.