Laser probe 40Ar/39Ar ages of early- and late-stage alteration assemblages, Rosario porphyry copper-molybdenum deposit, Collahuasi District, I Region, Chile

Economic Geology

Volumn 93, Issue 3, 1998, Pages 326-337

  Clark, Alan H ^a   Archibald, Douglas A ^a   Lee, Andrew W ^a,b   Farrar, Edward ^a   Jay Hodgson, C ^a,c  

^a QUEEN S UNIVERSITY   (Canada)

^b Barrick Gold Corporation ^*  (Canada)

^c BARRICK GOLD CORPORATION   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ALTERATION; ARGON/ARGON DATING; COPPER/MOLYBDENUM; HYDROTHERMAL DEPOSIT; MINERALIZATION; PORPHYRY;

CHILE; COLLAHUASI DISTRICT; ROSARIO;

EID: 0031669262     PISSN: 03610128     EISSN: None     Source Type: Journal    
DOI: 10.2113/gsecongeo.93.3.326     Document Type: Article

References (39)

1. Alpers, C., 1986, Geochemical and geomorphological dynamics of supergene copper sulfide ore formation and preservation at La Escondida, Antofagasta, Chile: Unpublished Ph.D. thesis, Berkeley, California, University of California, 197 p.
2. 39Ar dating standards: Chemical Geology, v.129, p. 307-324.
3. Clark, A.H., 1993, Are outsize porphyry copper deposits either anatomically or environmentally distinctive?: Society of Economic Geologists Special Publication 2, p. 213-283.
4. 39Ar age data for the Cerro Colorado porphyry copper deposit, northern Chile: Kingston, Ontario, Canada, Queen's University, Department of Geological Sciences, unpublished report, 9 p.
5. Clark, A.H., Farrar, E., Kontak, D.J., Langridge, R.J., Arenas, M.J., France, L.J., McBride, S.L., Woodman, P.L., Wasteneys, H.A., Sandeman, H.A., and Archibald, D.A., 1990, Geologic and geochronologic constraints on the metallogenic evolution of the Andes of southeastern Chile: ECONOMIC GEOLOGY, v. 85, p. 1520-1583.
6. Cornejo, P., Tosdal, R.M., Mpdozis, C., Tomlinson, A.J., Rivera, O., and Fanning, C.M., 1997, E1 Salvador, Chile, porphyry copper deposit revisited: Geologic and geochronological framework: International Geology Review, v. 39, p. 22-54.
7. 39Ar dating using the Geological Survey TRIGA Reactor: U.S. Geological Survey Professional Paper 1176, 55 p.
8. DeBeer, L.J., and Dick, L.A., 1994, Development of the Collahuasi copper deposits, a world class copper project in the Andes of northern Chile, in Mining Latin America-Mineria Latinoamericana: London, UK, Institution of Mining and Metallurgy, p. 181-195.
9. Dick, L.A., and Ossandón, G., 1992, Geologic setting and styles of mineralization of the Collahuasi copper deposits, First region, Chile [abs.]: Northwest Mining Association Annual Convention, 98th, Spokane, Washington, Program with Abstracts.
10. _ 1994, Structural controls on copper mineralization, Collahuasi district, First region, Chile [abs.]: Society for Mining, Metallurgy and Exploration Annual Meeting, 1994, Albuquerque, New Mexico, Program with Abstracts, p. 114.
11. Dick, L.A., Ossandón, G., Fitch, R.G., Swift, Jr., C.M., and Watts, A., 1993, Discovery of blind copper mineralization at Collahuasi, Chile [abs.]: Society of Economic Geologists Conference, Integrated Methods in Exploration and Discovery, Denver, Colorado, April, 1993, Program and Extended Abstracts, p. A21-A22.
12. Dick, L.A., Chávez, Jr., W.X., Gonzales, A., and Bisso, C., 1994, Geologic setting and mineralogy of the Cu-Ag-(As) Rosario vein system, Collahuasi district, Chile: Littleton, Colorado, Society of Economic Geologists Newsletter 19, p. 1 and 6-11.
13. Dodson, M.H., 1973, Closure temperature in cooling geochronological and petrological systems: Contributions to Mineralogy and Petrology, v. 40, p. 259-274.
14. 39Ar dating: Science, v. 267, p. 355-359.
15. Gustafson, L.B., and Hunt, J.P., 1975, The porphyry copper deposit at El Salvador, Chile: ECONOMIC GEOLOGY, v. 70, p. 857-912.
16. 39Ar methods to the dating of recent volcanics and the Laschamp event: Unpublished Ph.D. thesis, Toronto, Ontario, Canada, University of Toronto, 186 p.
17. Hollister, V.F., and Bernstein, M., 1976, Copaquire, Chile: Its geologic setting and porphyry copper deposit: American Institute of Mining, Metallurgical and Petroleum Engineers Transactions, v. 258, p. 137-142.
18. Hunt, J.P., Bratt, J.A., and Marquardt, J.C., 1983, Quebrada Bianca, Chile: An enriched porphyry copper deposit: Mining Engineering, v. 35, p. 636-644.
19. Lee, A.W., 1994, Evolution of the Rosario copper-molybdenum porphyry deposit and associated copper-silver vein system, Collahuasi district, I Región, northern Chile: Unpublished M.Sc. thesis, Kingston, Ontario, Canada, Queen's University, 75 p.
20. Maksaev, V., 1990, Metallogeny, geological evolution and thermochronology of the Chilean Andes between latitudes 21° and 26° South, and the origin of major porphyry copper deposits: Unpublished Ph.D. thesis, Halifax, Nova Scotia, Canada, Dalhousie University, 554 p.
21. Maksaev, V., and Zentilli, M., 1988, Marco metalogénico regional de los megadepositos de tipo pórfido cuprífero del Norte Grande de Chile: Congreso Geológico Chileno, V, Santiago, Chile, Tomo 1, p. B181-B212.
22. 39Ar de depositos de tipo pórfido cuprífero del Norte Grande de Chile: Congreso Geológico Chileno, V, Santiago, Chile, Tomo 1, p. B109-B133.
23. Marsh, T.M., Einaudi, M.T., and McWilliams, M.O., 1995, Ar/Ar geoehronology of gold and copper mineralization in the Potrerillos district, Atacama region, Chile [abs.]: Geological Society of America Abstracts and Programs, v, 27, no. 6, p. A329.
24. 39Ar method: New York, NY, Oxford University Press, 212 p.
25. 39Ar results from Codelco El Salvador samples, phase 2: Santiago, Chile, CODELCO, unpublished report, 11 p.
26. Munchmeyer, C., Hunt, J.P., and Ware, H.., 1984a, Proyecto Collahuasi: geología de distrito de Collahuasi y del pórfido cuprífero Rosario; Santiago, Compaňía Minera Doña Inés de Collahuasi S.A., unpublished report, 120 p.
27. _ 1984b, The geology of Collahuasi district and the Rosario porphyry copper orebody: Santiago, Compañía Minera Doña Inés de Collahuasi, S.A., unpublished report, 60 p.
28. Ojeda, J.M., 1986, Escondida porphyry copper deposit, II región, Chile: Exploration drilling and current geological interpretation, in Mining Latin America-Minería Latinoamericana:London, UK, Institution of Mining and Metallurgy, p. 299-318.
29. Onstott, T.C. and Peacock, M.W., 1987, Argon retentivity of hornblendes: A field experiment in a slowly cooled metamorphic terrane: Geochimica et Cosmochimica Acta, v. 51, p. 2891-2904.
30. Quirt, G.S., 1972, A potassium-argon geochronological investigation of the Andean mobile belt of north-central Chile: Unpublished Ph.D. thesis, Kingston, Ontario, Canada, Queen's University, 240 p.
31. 39Ar dating of two consecutive hydrothermal events in the Chuquicamata porphyry copper system, Chile [abs.]: Geological Association of Canada-Mineralogical Association of Canada, Program with Abstracts, v. 22, p. A-125.
32. 39Ar standards: Geochimica et Cosmochimica Acta, v. 47, p. 887-898.
33. Sillitoe, R.H., 1981, Regional aspects of the Andean porphyry belt in Chile and Argentina: Institution of Mining and Metallurgy Transactions, sec. B, v. 90, p. B15-B36.
34. _ 1988, Epochs of intrusion-related copper mineralization in the Andes: Journal of South American Earth Sciences, v. 1, p. 89-108.
35. Steiger, R.H., and Jäger, E., 1977, Subcommission on geochronology: Convention on the use of decay constants in geo- and cosmo-chronology: Earth and Planetary Science Letters, v. 36, p. 359-362.
36. Vergara, H., 1978, Cuadrángulo Ujina, Región de Tarapacá, Carta Geológica de Chile, Escala 1:50,000: Instituto de Investigaciones Geologicas, no.33, 63 p.
37. York, D., 1969, Least squares fitting of a straight line with correlated errors: Earth and Planetary Science Letters, v. 5, p. 320-324.
38. Zentilli, M., and Maksaev, V., 1996, Metallogenetic model for the late Eocene-early Oligocene supergiant porphyry event, northern Chile [extended abs.]: Giant Ore Deposits Workshop, 2nd, April 25-27, 1995, Queen's University, Kingston, Ontario, Proceedings, p. 152-165.
39. Zentilli, M., Graves, M., Lindsay, D., Ossandóu, G., and Camus, F., 1996, Recurrent mineralization in the Chuquicamata porphyry copper system: Restrictions on genesis from mineralogical, geochronological and isotopic studies [extended abs.]: Giant Ore Deposits Workshop, 2nd, April 25-27, 1995, Queen's University, Kingston, Ontario, Proceedings, p. 90-113.