Geology and geochronology of the Colorado Metamorphic Suite, SE Rondonia: Implications for the Mesoproterozoic evolution of the SW Amazonian Craton

Geologia USP - Serie Cientifica

Volumn 2, Issue 1, 2002, Pages 41-55

  Rizzotto, Gilmar José ^a   Bettencourt, Jorge Silva ^b   Teixeira, Wilson ^b   Pacca, Igor Ivory Gil ^b   D'Agrella Filho, Manoel Sousa ^b   Vasconcelos, Paulo ^c   Basei, Miguel Angelo Stipp ^b   Onoe, Artur Takashi ^b   Passarelli, Cláudia Regina ^b  

^a CPRM   (Brazil)

^b UNIVERSITY OF SÃO PAULO   (Brazil)

^c UNIVERSITY OF QUEENSLAND   (Australia)

Author keywords

40Ar 39Ar geochronology; Amazonian Craton; Basic rocks; Proterozoic

Indexed keywords

ARGON-ARGON DATING; ISOTOPIC ANALYSIS; METAMORPHISM; PROTEROZOIC; RECRYSTALLIZATION; REGIONAL GEOLOGY; TECTONIC EVOLUTION;

BRAZIL; RONDONIA STATE;

EID: 0141460459     PISSN: 1519874X     EISSN: None     Source Type: Journal    
DOI: 10.5327/S1519-874X2002000100006     Document Type: Article

References (33)

1. ANDERSON, S. L. (1988) Interpretation of K-Ar mineral dates of the Grenville orogenic belt. American Journal of Sciences, v. 288, p.701-734.
2. BASEI, M. A. S.; SIGA Jr., O.; SATO, K.; SPROESSER W. M. (1995) A Metodologia Urânio-Chumbo na Universidade de São Paulo: princípios metodológicos; aplicações e resultados obtidos. Anais da Academia Brasileira de Ciências, v. 67, n. 2, p. 221-237.
3. 9Ar ages on country rocks from the central sector of the Rio Negro-Juruena province, southwest Amazonian Craton. International Geology Reviews, v. 38, p. 42-56.
4. 39 Ar em rochas paleo-e mesoproterozóicas da região Centro-Norte de Rondônia: inferências tectônicas. In: CONGRESSO, BRASILEIRO DE GEOLOGIA, 41., João Pessoa, 2002. Anais. João Pessoa, SBG-NO. p. 296.
5. BETTENCOURT, J. S.; TOSDAL, R. M.; LEITE, W. B. JR.; PAYOLLA, B. L. (1999) Mesoproterozoic rapakivi granites of the Rondonia Tin Province, southwestern border of the Amazonian craton, Brazil. - I. Reconnaissance U-Pb geochronology and regional implications. Precambrian Research, v. 95, p. 41-67.
6. CORFU, F. (1996) Multi-stage zircon and titanite growth and inheritance in an Archean gneiss complex, Winnipeg River subprovince Ontario. Earth Planetary Science Letters, v. 141, p. 175-186.
7. CUMMING G. L.; RICHARDS J. R. (1975) Ore lead ratios in a continuously changing earth. Earth Planetary Science Letters, v. 28, p. 155-171.
8. GERALDES, M. C.; VAN SCHMUS, R.; CONDIE, K. C.; BELL, S.; TEIXEIRA, W.; BABINSKI M. (2001) Proterozoic Geologic Evolution of the SW Part of the Amazonian Craton in Mato Grosso State, Brazil. Precambrian Research, v. 111, n. 1-4, p. 91-128.
9. GOWER, C. F. (1996) The evolution of the Grenville province in eastern Labrador, Canada. In: BREWER, T. S. (ed.) Precambrian crustal evolution in the North Atlantic region. London, Geological Society of London, p. 197-218. (Geological Society Special Publications, 112).
10. JONES, J. P. (1985) The Southern border of the Guaporé Shield in western Brazil an Bolivia: an interpretation of its geologic evolution. Precambrian Research, v. 28, p. 111-136.
11. KROGH, T. E. (1973) A low-contamination method for hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations. Geochimica et Cosmochimica Acta, v. 37, p. 485-494.
12. 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.
13. LITHERLAND, M.; ANNELS, R. N.; APPLETON, J.; BERRANGE, J.; BLOOMFIELD, K.; BURTON, C.; DARBYSHIRE, D. P. F.; FLETCHER, C. J. N.; HAWKINS, M. P.; KLINK, B. A.; MITCHEL, W. I.; O'CONNOR, E. A.; PITFIELD, P. E. J.; POWER, G.; WEBB, B. C. (1986) The geology and mineral resources of the Bolivian Precambrian Shield. Overseas Memoir, v. 9, p. 1-153.
14. LUDWIG, K. R. (1998) Isoplot/Ex. (v. 1.00b): a geochronological toolkit for Microsoft excel. Berkeley, Geochronology Center. 45p. (Special Publication 1).
15. LUDWIG, K. R. (1999) User's Manual d\for Isoplot\Ex - version 2.10. - a geochronological Toolkit for microsoft excel. Berkeley Geochronology Center. Special publication 1.
16. 39 Ar method. 2 ed. Oxford, Oxford University Press. 269 p.
17. PACES, J. B.; MILLER, J. D. (1993) Precise U-Pb ages of Duluth Complex and related mafic intrusions, northeastern Minnesota: geochronological insights to physical, petrogenetic, paleomagnetic, and tectonomagmatic processes associated with the 1.1 Ga midcontinental rift system. Journal Geophysical Research, v. 98, p. 13997-14013.
18. PARRISH, R. R. (1987) An improved micro-capsule for zircon dissolution in U-Pb geochronology. Isotope Geosciences, v. 66, p. 99-102.
19. PAYOLLA, B. L.; BETTENCOURT, J. S.; KOZUCH, M.; LEITEJUNIOR, W.; FETTER, A.; VAN SCHMUS, R. (no prelo) Geological evolution of the basement rocks in the east-central part of Rondonia Tin Province, SW Amazonian Craton, Brazil: U-Pb and Sm-Nd isotopic constraints. Precambrian Research.
20. PRIEM, H. N. A.; BON, E. H.; VERDURMEN, E. A.; BETTENCOURT, J. S. (1989) Rb-Sr chronology of Precambrian crustal evolution in Rondônia (western margin of the Amazonian Craton), Brazil. Journal of South American Earth Sciences, v. 2, n. 2, p. 163-170.
21. RIZZOTTO, G. J. (1999) Petrologia e ambiente tectônico do Grupo Nova Brasilândia-RO. Porto Alegre, 136 p. Dissertação (Mestrado) - Universidade Federal do Rio Grande do Sul.
22. RIZZOTTO, G. J. (2001) Reavaliação do Ciclo Orogênico Sunsas/Aguapeí no Sudoeste do Cráton Amazônico. In: WORKSHOP ON GEOLOGY OF THE SW AMAZONIAN CRATON: STATE OF THE ART, São Paulo, 2001. Extended Abstracts. Sâo Paulo, IGc-USP, 66-67.
23. SANTOS, J. O.; HARTMAN, L. A.; GAUDETTE, H. E.; GROVES, D. I.; MCNAUGHTON; FLETCHER, I. R. (2000) A New Understanding of the Provinces of the Amazon Craton Based on Integration of Field Mapping and U-Pb and Sm-Nd Geochronology. Gondwana Research, v. 3, p. 453-488.
24. SANTOS, J. O. S.; RIZZOTTO, G. J.; HARTMAN, L.A.; MCNAUGHTON, N. J.; FLETCHER, I. R. (2001) Ages of sedimentary basins related to the Sunsás and Juruena orogenies, Southwest Amazon Craton established by zircon U-Pb geochronology In: WORKSHOP ON GEOLOGY OF THE SW AMAZONIAN CRATON: STATE OF THE ART, São Paulo, 2001. Extended Abstracts. São Paulo, IGc, p. 114-118.
25. SCANDOLARA, J. E.; AMORIM, J. L. DE; RIZZOTTO, G. J.; QUADROS, M. L. DO E. S.; BAHIA, R. B. C. (1999) Compartimentação tectônica-estratigráfica précambriana de Rondônia: subsidios para os modelos evolutivos. In: SIMPÓSIO DE GEOLOGIA DA AMAZÔNIA, 6., Manaus, 1999. Boletim de Resumos Expandidos. SBG-Núcleo Norte, p. 282-285.
26. STEIGER, R. H.; JÄGER, E. (1977) Subcomission on geochronology: convention on the use of decay constants in geo and cosmochronolgy. Earth Planetary Science Letters, v. 36, p. 359-362.
27. TASSINARI, C. C. G; BETTENCOURT, J. S.; GERALDES, M. C.; MACAMBIRA, M. J. B.; LAFON, J. M. (2000) The Amazonian Craton, In: INTERNATIONAL GEOLOGICAL CONGRESS, 31., Rio de Janeiro, 2000. Tectonic evolution of South America. Rio de Janeiro. p. 41-96.
28. 39 Ar geochronology. In: PARKER, A. H. J.; ROCKWOOD, P. C.; TUCKER, D. H. (eds.) Mafic dykes and emplacement mechanisms. Rotterdam, A.A. Balkema, p. 285-293.
29. TEIXEIRA, W.; TASSINARI, C. C. G.; CORDANI, U. G.; KAWASHITA, K. (1989) A review of the geochronology of the Amazonian Craton: tectonic implications. Precambrian Research, v. 42, p. 213-337.
30. 39 Ar data. In: WORKSHOP ON GEOLOGY OF THE SW AMAZONIAN CRATON: STATE OF THE ART, São Paulo, 2001. Extended Abstracts. São Paulo, IGc. p. 151-153.
31. TOHVER, E.; VAN DER PLUIJM, B. A.; VAN DER VOO, R.; RIZZOTTO, G. J.; SCANDOLARA, J. E. (2002) Paleogeography of the Amazon craton at 1.2 Ga: early Grenvillian collision with the Llano segment of Laurentia. Earth and Planetary Science Letters, v. 199, p. 185-200.
32. TOSDAL, R. M.; BETTENCOURT, J. S. (1994) U-Pb zircon ages and Pb isotopic compositions of middle Proterozoic Rondonian massifs, southwestern margin of the Amazon Craton, Brazil. In: GEOLOGICAL CONGRESS, 7., Concepcion, 1994. Actas. Concepcion, Universidad de Concepcion. v. 2, p. 1538-1541
33. 39 Ar Geochronology at the Instituto de Geociências, USP: Instrumentation, Analytical Procedures, and Calibration. Anais da Academia Brasileira de Ciências, v. 74, n. 2, p. 297-342.