SILICO-CARBONATE ALTERATION PETROGRAPHIC CHARACTERIZATION IN SERPENTINITES FROM THE FERROLANA CHROMITE DEPOSIT. PROVINCE OF CAMAGÜEY
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Abstract
The present research is part of a petrographic service carried out by Petrology and Mineralogy Group for Geominera Camaguey Company, where 11 samples belonging to the “Ferrolana” chromite deposit were analyzed. The objective of the research is to characterize from petrographic point of view the silica-carbonatic alteration in serpentinites of the “Ferrolana” chromite deposit and its link with ore mineralization. As results of the research, it was obtained that: 1) The occurrence of silica-carbonatic alteration in Ferrolana indicate that serpentinites were affected by mineralizing fluid enriched in CO2 and SiO2. 2) According to occurrence mode the carbonates occur in two main forms: massive and in veinlets. Being the carbonatization in veinlets the one that presents a genetic and spatial link with sulphurous mineralization. 3) The replacement of silica by carbonates in the veinlets indicates the occurrence of two chemically different hydrothermal fluids infilt ation periods. Where initially the fluids were acidic, rich in silica and of low temperature followed by a second period characterized by alkaline fluid , hotter and with high CO2. 4) The presence of a fla y mineral with optical characteristics very similar to chromic mica (Fuchsite) within the mineral assemblage: Carbonate + Talc + Chlorite + Sulphures, could indicate the presence of listvenites s.s in Ferrolana.
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References
Akinfiev & N.N. Diamond, L.W. (2009): A simple predictive model of quartz solubility in water-salt-CO2 systems at temperatures up to 1000°C and pressures up to 1000 MPa. Geochimica et Cosmochimica Acta (73). 1597–1608. https://doi.org/10.1016/j.gca.2008.12.011
Ash, C.H. and Arksey, R.L. (1990a): The listwanite-lode gold association in British Columbia. In: Anonymous (Editor). Geological field ork, 1989; a summary of field activities and current research. Paper - Ministry of Energy, Mines and Petroleum Resources. Province of British Columbia Ministry of Energy Mines and Petroleum Resources. Victoria. BC. Canada. pp. 359-364.
Ashley, P.M. (1997): Silica-carbonate alteration zones and gold mineralization in the Great Serpentinite Belt, New England Orogen, New South Wales. In: P.M. Ashley and P.G. Flood (eds.). Tectonics and Metallogenesis of the New England Oroge., Geological Society of Australia. Special Publication. (19) 212-225.
Boskabadi, A., Pitcairn, I.K., Matthew, I., Teagle, D.A., Cooper, M.J., Hadizadeh, H., Bezenjani, R.N., Bagherzadeh, R.M. (2020): Carbonation of ophiolitic ultramaficrocks: Listvenite formation in the Late Cretaceous ophiolites of eastern Iran. Geosciences Department. University of Texas at Dallas. USA.
Buckman S., Ashley P.M. (2010): Silica-carbonate (listwanites) related gold mineralization associated with epithermal alteration of serpentinite bodies. New England Orogen, Armidale. Australia. pp 94-105.
Buisson, G., Leblanc, M. (1987): Gold in mantle peridotites from Upper Proterozoic ophiolites in Arabia, Mali, and Morocco. Economic Geology. (82). 2091-2097.
Cox, D.P., Singer, D.A. (1986): Grade and tonnage model of porphyry Cu-Au. In: Cox, D.P., Singer, D.A. (eds.). Mineral Deposit Models. U.S. Geological Survey Bulletin. (1693). 110-114.
Escayola M., Proenza J.A., Van Staal C., Rogers N., Skulski T. (2009): The Point Rousse listvenites, Baie Verte, Newfoundland: altered ultramafic rocks with potential for gold mineralization. Newfoundland and Labrador Department of Natural Resources. Geological Survey Report, Report 09-1, pp. 1-12.
Fournier, R.O. (1985a): The behavior of silica in hydrothermal solution. Reviews in Economic Geology. (2). pp. 4561.
Fournier, R.O. (1985b): Carbonate transport and deposition in the epithermal environment. Reviews in Economic Geology. (2). pp. 63-72.
Frost, B.R. (1985): On the stability of sulfide , oxides, and native metals in serpentinite. Journal of Petrology. (26). pp. 31-63.
González, R. et al. (1998): Banco de datos geológicos sobre las cromitas de la provincia de Camagüey. Archivo Oficina Nacional de ecursos Minerales. (O.N.R.M.)
Halls, C. & Zhao, R. (1995): Listvenite and related rocks: perspectives on terminology and mineralogy with reference to an occurrence at Cregganbaun, Co. Mayo, Republic of Ireland. Mineralium Deposita (30). 303-313.
Harlov & Austrheim (2013): Metasomatism and the Chemical Transformation of Rock. The Role of Fluids in Terrestrial and Extraterrestrial Processes. Springer Heidelberg New York Dordrecht, London. http//: DOI 10.1007/9783-642-28394-9.
Llanes A.I., Lavandero R., Capote C., De la Nuez D., Milia I., Sánchez R., Mondelo F., Chang A. (2011): Informe
final del proyecto I+D 6284: Mineralogía, geoquímica y tipo estructural del depósito Ferrolana, Camagüey. Archivo Técnico IGP-SGC.
Murashko, V.I. y Escobar, E. (1985): Informe de los trabajos complementarios de la exploración detallada del yacimiento de cromita Camagüey II. Cat. Res C2. Inv. 3349. Archivo O.N.R.M.
Rimstidt, J.D. (1997): Gangue mineral transport and deposition. In the Geochemistry of Hydrothermal Ore Deposits, 3rd edn., ed. Barnes, H.L. John Wiley & Sons, New York, pp. 487-515.
Sostarıc S.B., Palinkas L.A., Topa D., Spangeberg J.E., Prochaska, W. (2011): Silver-base metal epithermal and listwaenite types of deposit Crnac, Rogozna Mts., Kosovo. Part I: ore mineral geochemistry and sulphur isotope study. Ore Geol. Rev. 40. pp. 65-80.
Zoheir B., Lehmann, B. (2011): Listvenite-lode association at the Barramiya gold mine, Eastern Desert, Egypt. Ore Geol. Rev. 39. pp. 101-115.