Jurassic extensional tectono-magmatism and associated mineralization of the El Faldeo polymetallic district, Chilean Patagonia: Geochemical and isotopic evidence of crustal contribution

Mineralium Deposita

Volumn 32, Issue 6, 1997, Pages 547-554

  Parada, M A ^a   Palacios, C ^a   Lahsen, A ^a  

^a UNIVERSITY OF CHILE   (Chile)

Author keywords

[No Author keywords available]

Indexed keywords

JURASSIC; MINERALIZATION; TECTONO-MAGMATISM;

CHILE;

EID: 0031396660     PISSN: 00264598     EISSN: None     Source Type: Journal    
DOI: 10.1007/s001260050121     Document Type: Article

References (23)

1. Aitcheson SJ, Harmon RS, Moorbath S, Schneider A, Soler P, Soria-Escalante E, Steele G, Swainbank I, Wörner G (1995) Pb isotopes define basement domains of the Altiplano, central Andes. Geology 23: 555-558
2. Ben-Avraham Z, Zoback MD (1992) Transform-normal extension and asymmetric basins: an alternative to pull-apart models. Geology 20: 423-426
3. Cande SC, Leslie RB (1986) Late Cenozoic tectonics of the southern Chile trench. J Geophys Res 91, B1: 471-496
4. Dalziel IWD (1981) Back-arc extension in the southern Andes: a review and critical reappraisal. Philos Trans R Soc London A300: 319-335
5. Fleischer RL, Price PB, Walker RM (1964) Fission track ages of zircons. J Geophys Res 69: 4885
6. Haller MJ, Lapido OR (1982) The Jurassic-Cretaceous volcanism in the Septentrional Patagonian Andes. Earth-Sci Rev 18: 395-410
7. Hanson RE, Wilson TJ (1991) Submarine rhyolitic volcanism in a Jurassic proto-marginal basin: southern Andes. Chile and Argentina. In: Harmon, RS, Rapela CW (eds) Andean magmatism and its tectonic setting. Boulder, Colorado, Geol Soc Am Spec Pap 265: 13-27
8. Hurford AJ, Green PF (1982) A users' guide to fission track calibration. Earth Planet Sci Lett 59: 343-354
9. Kay SM, Ramos VA, Mpodozis C, Sruoga P (1989) Late Paleozoic to Jurassic silicic magmatism at the Gondwana margin: analogy to the Middle Proterozoic in North America? Geology 17: 324-328
10. Krogh TE (1973) A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations. Geochim Cosmochim Acta 37: 485-494
11. Lahsen A, Palacios C, Parada MA, Sánchez G, Townley B, Villegas J (1994) Exploración Geoquímica Estratégica en la Región de Aisén. Iternal Report, Departamento de Geología, Univ de Chile, 367 pp
12. Mattinson JM (1987) U-Pb ages of zircons: a basic examination of error propagation. Chem Geol, Isotope Geosci Sec 66: 151-162
13. Nelson EP, Dalziel I, Milnes AG (1980) Structural geology of the Cordillera Darwin: collisional style orogenesis in the southernmost Chilean Andes. Eclog Geol Helvet 73: 27-51
14. Palacios C, Parada MA, Lahsen A (1996) Upper Jurassic Au-Zn mineralization in the El Faldeo district, Chilean Patagonia, Geol Rundsch (accepted)
15. Pankhurst RJ, Hervé F, Rapela CW (1994) Sm-Nd evidence for the Grenvillian provenance of the metasedimentary basement of southern Chile and west Antarctica. VII Congr Geol Chileno, Concepción, 2: 1414-1418
16. Pankhurst RJ, Rapela CW (1995) Production of Jurassic rhyolite by anatexis of the lower crust of Patagonia. Earth Planet Sci Lett 134: 23-36
17. Parada MA, Palacios C, Lahsen A (1996) Magmatic evolution of the eastern part of the Chilean Patagonia (Aysén Region): geochronological and geochemical constraints. Third Int Symp Andean Geodynamic, St Malo, France, 617-620
18. Puig A (1988) Geologic and metallogenic significance of the isotopic composition of lead in gatenas of the Chilean Andes. Econ Geol 83: 843-858
19. Ramos VA, Niemeyer H, Skármeta J, Muñoz J (1982) Magmatic evolution of the austral Patagonian Andes. Earth-Sci Rev 18: 411-443
20. Ramos VA, Kay SM (1992) Southern Patagonian plateau basalts and deformation: backarc testimony of ridge collisions. Tectonophysics 205: 261-282
21. Stacey JS, Kramers JD (1975) Approximation of terrestial lead isotope evolution by a two-stage model. Earth Planet Sci Lett 26: 207-221
22. Weaver SG, Bruce R, Nelson EP, Brueckner HK, LeHuray AP (1990) The Patagonian batholith at 48°S latitude, Chile; geochemical and isotopic variations. In: Kay SM, Rapela CW (eds) Plutonism from Antarctica to Alaska. Boulder, Colorado, Geol Soc Am Spec Pap 241: 33-50
23. Zartman RE, Doe BR (1981) Plumbotectonics-the model. Tectonophysics 75: 135-162