Northern Andean crustal evolution: New U-Pb geochronological constraints from Ecuador

Bulletin of the Geological Society of America

Volumn 109, Issue 7, 1997, Pages 789-798

  Noble, S R ^a   Aspden, J A ^b   Jemielita, R ^c  

^a NATURAL ENVIRONMENT RESEARCH COUNCIL   (United Kingdom)

^b BRITISH GEOLOGICAL SURVEY   (United Kingdom)

^c UNIVERSITY OF ST ANDREWS   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

BINARY ALLOYS; GEOCHRONOLOGY; GRANITE; MONAZITE; PHOSPHATE MINERALS; SILICATE MINERALS; STRUCTURAL GEOLOGY; ZIRCON; LEAD ALLOYS; URANIUM ALLOYS;

CRUSTAL EVOLUTION; GEOCHEMICAL EVIDENCE; METAMORPHIC EVENTS; METAMORPHIC EVOLUTION; METASEDIMENTARY ROCKS; RB-SR GEOCHRONOLOGIES; RECYCLING OF MATERIALS; TECTONO-THERMAL EVENT; COLOMBIANS; GRANITOIDS; ISOTOPE DATA;

POTASSIUM COMPOUNDS;

ANATEXIS; BATHOLITH; CRUSTAL STRUCTURE; EMPLACEMENT; GEOCHRONOLOGY; MAGMATISM; OVERPRINTING; PALEOZOIC; URANIUM-LEAD DATING; CRUSTAL EVOLUTION; MESOZOIC; METAMORPHISM; PALAEOZOIC; TECTONIC EVOLUTION; URANIUM/LEAD DATING;

ANDES; COLOMBIA; COSTA RICA; ECUADOR; EL ORO; LIMON; MEXICO [NORTH AMERICA];

EID: 0031448856     PISSN: 00167606     EISSN: None     Source Type: Journal    
DOI: 10.1130/0016-7606(1997)109<0789:NACENU>2.3.CO;2     Document Type: Article

References (45)

1. Aspden, J. A., and Litherland, M., 1992, The geology and Mesozoic collisional history of the Cordillera Real, Ecuador: Tectonophysics, v. 205, p. 187-204.
2. Aspden, J. A., McCourt, W. T., and Brook, M., 1987, Geometric control of subduction-related magmatism: The Mesozoic and Cenozoic plutonic history of western Colombia: Journal of the Geological Society of London, v. 144, p. 893-905.
3. Aspden, J. A., Fortey, N., Litherland, M., Vitteri. F., and Harrison, S. M., 1992a, Regional S-type granites in the Ecuadorian Andes: Possible remnants of the breakup of western Gondwana: Journal of South American Earth Sciences, v. 6, p. 123-132.
4. Aspden. J. A., Harrison, S. H., and Rundle, C. C., 1992b, New geochronological control for the teclono-magmalic evolution of the metamorphic basement, Cordillera Real and El Oro Province of Ecuador: Journal of South American Earth Sciences, v. 6, p. 77-96.
5. Aspden, J. A., Bonilla, W., and Duque, P., 1995, The El Oro metamorphic complex Ecuador: Geology and economic mineral deposits: Overseas Geology and Mineral Resources, vol. 67, 63 p.
6. Bevier, M. L., Barr, S. M., and White, C. E., 1990, Late Precambrian U-Pb ages for the Brookville Gneiss, southern New Brunswick: Journal of Geology, v. 98, p. 955-965.
7. Corfu, F., 1988, Differential response of U-Pb systems in coexisting accessory minerals, Winnipeg River Subprovince, Canadian Shield: Implications for Archean crustal growth and stabilization: Contributions to Mineralogy and Petrology, v. 98, p. 312-325.
8. Corfu, F., and Ayres, L. D., 1984, U-Pb ages and genetic significance of heterogeneous zircon populations in rocks from the Favourable Lake area, northwestern Ontario: Contributions to Mineralogy and Petrology, v. 88, p. 86-101.
9. Dalla Salda, L., Cingolani, C. and Varela, R., 1992a, Early Paleozoic orogenic belt of the Andes in southwestern South America: Result of Laurentia-Gondwana collision?: Geology, v. 20, p. 617-620.
10. Dalla Salda, L., Dalziel, I. W. D., Cingolani, C., and Varela, R., 1992b, Did the Taconic Appalachians continue into southern South America?: Geology, v. 20, p. 1059-1062.
11. Dalziel, I. W. D., Dalla Salda, L. H., and Gahagan, L. M., 1994, Paleozoic Laurentia-Gondwana interaction and the origin of the Appalachian-Andean mountain system: Geological Society of America Bulletin, v. 106, p. 243-252.
12. DePaolo, D. J., 1981, Neodymium isotopes in the Colorado Front Range and crust-mantle evolution in the Proterozoic: Nature, v. 291, p. 193-196.
13. Eguez, A., and Aspden, J. A., 1993, The Mesozoic-Cenozoic evolution of the Ecuadorian Andes, in Andean Geodynamics, Symposium International: Oxford, United Kingdom, ORSTROM/Université d'Oxford, p. 215-218.
14. Feininger, T., 1975, Origin of petroleum in the Oriente of Ecuador: Bulletin of the American Association of Petroleum Geologists, v. 57, p. 1166-1175.
15. Feininger, T., 1982, The metamorphic 'basement' of Ecuador: Bulletin of the Geological Society of America, v. 93, p. 87-92.
16. Feininger, T., and Silberman, M. L., 1982, K-Ar geochronology of basement rocks on the northern flank of the Huancabamba Deflection, Ecuador: U.S. Geological Survey Open File Report 82-206, 21 p.
17. Gibbs, A. K., and Olszewski, W., Jr., 1982, Zircon U-Pb ages of Guyana greenstone-gneiss terrain: Precambrian Research, v. 17, p. 199-214.
18. Harrison, S. M., 1990, Radiometrie ages (Rb-Sr, K-Ar and Sm-Nd) for rocks from the Cordillera Real, Ecuador: Phase II: British Geological Survey Technical Report WC/90/12, 31p.
19. 238U: Physics Reviews, v. C4, p. 1889-1906.
20. Jaillard, E., Soler, P., Carlier, G., and Mourier, T., 1990, Geodynamic evolution of the Northern and Central Andes during early to middle Mesozoic times: A Tethyan model: Journal of the Geological Society of London, v. 147, p. 1009-1022.
21. Karabinos, P., and Gromet, L. P., 1993, Application of single-grain zircon evaporation analysis to detrital grain studies and age discrimination in igneous suites: Geochimica et Cosmochimica Acta, v. 57, p. 4257-4267.
22. Kennerly, J. B., 1980, Outline of the geology of Ecuador: British Geological Survey Overseas Geology and Mineral Resources, no. 55, 20p.
23. Kent, D. V., and Van Der Voo, R., 1990, Atlantic-bordering continets, in McKerrow, W. S., and Scotese, C. R., eds., Palaeozoic palaeogeography and biogeography: Geological Society of London Memoir 12, p. 49-56.
24. Keppie, J. D., and Krogh, T. E., 1990, Detrital zircon ages from late Precambrian conglomerate, Avalon composite terrane, Nova Scotia: Geological Society of America Abstracts with Programs, v. 22, no. 2, p. 27-28.
25. Krogh, T. E., 1973, A low contamination method for the hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations: Geochimica et Cosmochimica Acta, v. 37, p. 485-494.
26. Krogh, T. E., 1982, Improved accuracy of U-Pb zircon ages by the creation of more concordant systems using an air-abrasion technique: Geochimica et Cosmochimica Acta, v. 46, p. 637-649.
27. Litherland, M., Aspden, J. A., and Jemielita, R. A., 1995, The metamorphic belts of Ecuador: British Geological Survey Overseas Memoir 11, 112p.
28. Ludwig, K. R., 1980, Calculation of uncertainties of U-Pb isotope data: Earth and Planetary Science Letters, v. 46, p. 212-20.
29. Machado, N., and Careneiro, M., 1992, U-Pb evidence of late Archean tectono-thermal activity in the southern São Francisco shield, Brazil: Canadian Journal of Earth Sciences, v. 29, p. 2341-2346.
30. Machado, N., Lindenmayer, Z., Krogh, T. E., and Lindenmayer, D., 1991, U-Pb geochronology of Archean magmatism and basement reactivation in the Carajás area, Amazon shield, Brazil: Precambrian Research, v. 49, p. 329-354.
31. Machado, N., Noce, C. E., Ladeira, E. A., and Belo De Olivera, O., 1992, U-Pb geochronology of Archean magmatism and Proterozoic metamorphism in the Quadrilátere Ferrífero, southern São Francisco craton, Brazil: Geological Society of America Bulletin, v. 104, p. 1221-1227.
32. McCourt, W. T., Aspden, J. A., and Brook, M., 1984, New geogchronological data from the Colombian Andes: Continental growth by multiple accretion: Journal of the Geological Society of London, v. 141, p. 831-845.
33. Mourier, T., Laj, C., Megard, F., Roperch, P., Mitouard, P., and Medrano, A. F., 1988, An accreted continental terrane in northwestern Peru: Earth and Planetary Science Letters, v. 88, p. 182-192.
34. Mueller, P. A., Heatherington, A. L., Wooden, J. L., Shuster, R. D., Nutman, A. P., and Williams, I. S., 1994, Precambrian zircons from the Florida basement: A Gondwanan connection: Geology, v. 22, p. 119-122.
35. Nance, R. D., and Murphy, J. B., 1994, Contrasting basement isotopic signatures and the palinspastic restoration of peripheral orogens: Example from the Neoproterozoic Avalonian-Cadomian belt: Geology, v. 22, p. 617-620.
36. Noble, S. R., Tucker, R. D., and Pharaoh, T. C., 1993, Lower Palaeozoic and Precambrian igneous rocks from eastern England, and their bearing on Late Ordovician closure of the Tornquist Sea: Constraints from U-Pb and Nd isotopes: Geological Magazine, v. 130, p. 835-846.
37. Parrish, R. R., 1990, U-Pb dating of monazite and its application to geological problems: Canadian Journal of Earth Sciences, v. 27, p. 1431-1450.
38. Restrepo, P, Ruiz, J., and Cosca, M., 1994, The transfer of terranes from South to North America based on the Proterozoic and Paleozoic evolution of Colombia and Southern Mexico, in Lanphere, M. A., Dalrymple, G. B., and Turrin, B. D., eds., Abstracts of the Eighth International Conference on Geochronology, Cosmochronology, and Isotope Geology: U.S. Geological Survey Circular 1107, p. 266.
39. Rocci, G., Bronner, G., and Deschamps, M., 1991, Crystalline basement of the West African Craton, in Dallmeyer, R. D., and Lécorché, J.P., eds.. The West African orogens and circum-Atlantic correlatives: Heidelberg, Germany, Springer-Verlag, p. 31-61.
40. Roddick, J. C., Loveridge, W. D., and Parrish, R. R., 1987, Precise U/Pb dating of zircon at the sub-nanogram Pb level: Isotope Geoscience, v. 66, p. 111-121.
41. Sauer, W., 1965, Geologia del Ecuador: Quito, Ministerio de Educación.
42. 230Th disequilibrium on young U-Pb ages: The Makalu case, Himalaya: Earth and Planetary Science Letters, v. 67, p. 191-204.
43. Stacey, J. S., and Kramers, J. D., 1975, Approximation of terrestrial lead isotope evolution by a two-stage model: Earth and Planetary Science Letters, v. 26, p. 207-221.
44. Teixeira, W., Tassinari, C. C. G., Cordani, U. G., and Kawashita, K., 1989, A review of the geochronology of the Amazonian Craton: Tectonic implications: Precambrian Research, v. 42, p. 213-227.
45. Yañez, P., Ruiz, J., Patchett, P. J., Ortega-Gutierrez, R., and Gehrels, G. E., 1991, Isotopic studies of the Acatlan complex, southern Mexico: Implications for Paleozoic North American tectonics: Geological Society of America Bulletin, v. 103, p. 817-828.