Shrimp U-Pb age and Sr-Nd isotopes of the Morro do Baú mafic intrusion: Implications for the evolution of the Arenópolis volcano-sedimentary sequence, Goiás Magmatic Arc

Anais da Academia Brasileira de Ciencias

Volumn 75, Issue 3, 2003, Pages 331-339

  Pimentel, Márcio M ^a   Hollanda, Maria Helena B M ^a   Armstrong, Richard ^b  

^a UNIVERSITY OF BRASILIA   (Brazil)

^b AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

Author keywords

Aren polis; Basic magmatism; Crustal contamination; Goi s Magmatic Arc; U Pb SHRIMP

Indexed keywords

DECAPODA (CRUSTACEA);

EID: 0141567882     PISSN: 00013765     EISSN: None     Source Type: Journal    
DOI: 10.1590/S0001-37652003000300006     Document Type: Article

References (16)

1. COMPSTON W, WILLIAMS IS, KIRSCHVINK JL, ZHANG Z AND GUOGAN MA. 1992. Zircon U-Pb ages for the Early Cambrian time-scale. J Geol Soc London 149: 171-184.
2. FUCK RA, PIMENTEL MM AND D'EL REY SILVA LJH. 1994. Compartimentação tectônica da porção oriental da Província Tocantins. In: CONG. BRASIL. GEOL., 38., Anais... Balneário Camboriú-SC, SBG, p. 215-216.
3. GIOIA SMCL AND PIMENTEL MM. 2000. The Sm-Nd isotopic method in the Geochronology Laboratory of the University of Brasília. An Acad Bras Cienc 72: 219-245.
4. JUNGES SL, PIMENTEL MM AND MORAES R. 2002. Nd isotopic study of the Neoproterozoic Mara Rosa Arc, central Brazil: implications for the evolution of the Brasília Belt. Precamb Res 117: 101-118.
5. LUDWIG KR. 2001 a. Squid 1.02. A user's manual. BGC Special Publ. 2., Berkeley, 19p.
6. LUDWIG KR. 2001b. User's manual for Isoplot/Ex v. 2.47. A geochronological toolkit for Microsoft Excel. BGC Special Publ. 1a. Berkeley, 55p.
7. PIMENTEL MM. 1992. Reajuste do sistema isotópico Sm-Nd durante o Neoproterozóico em gnaisses do oeste de Goiás. Rev Bras Geocienc 22: 1-7.
8. PIMENTEL MM AND FUCK RA. 1986. Geologia da seqüência vulcano-sedimentar de Arenópolis (GO). Rev Bras Geocienc 16: 217-223.
9. PIMENTEL MM AND FUCK RA. 1987. Origem e evolução das rochas metavulcânicas e metaplutônicas da região de Arenópolis (GO). Rev Bras Geocienc 17: 2-14.
10. PIMENTEL MM AND FUCK RA. 1992. Neoproterozoic crustal accretion in Central Brazil. Geology 20: 372-379.
11. PIMENTEL MM, HEAMAN L AND FUCK RA. 1991. Zircon and sphene U-Pb geochronology of upper Proterozoic volcanic arc rock units from southwestern Goiás, Central Brazil. J S Am Earth Sci 4: 295-305.
12. PIMENTEL MM, FUCK RA AND ALVARENGA CJS. 1996. Post-Brasiliano (Pan-African) high-K granitic magmatism in central Brazil: the role of Late Precambrian/early Paleozoic extension. Precamb Res 80: 217-238.
13. PIMENTEL MM, WHITEHOUSE MJ, VIANA MG, FUCK RA AND MACHADO N. 1997. The Mara Rosa arc in the Tocantins Province: Further evidence for Neopro-terozoic crustal accretion in central Brazil. Precamb Res 81: 299-310.
14. PIMENTEL MM, FUCK RA AND GIOIA SMCL. 2000a. The Neoproterozoic Goiás Magmatic Arc, Central Brazil: a review and new Sm-Nd isotopic data. Rev Bras Geocienc 30: 35-39.
15. PIMENTEL MM, FUCK RA. JOST H, FERREIRA FILHO CF AND ARAÚJO SM. 2000b. The basement of the Brasília Fold Belt and the Goiás Magmatic Arc. In: CORDANI UG. MlLANI EJ, THOMAZ FlLHO A AND CAMPOS DA. (Eds). Tectonic Evolution of South America. Rio de Janeiro, 31st International Geological Congress, p. 190-229.
16. WILLIAMS IS AND CLAESSON S. 1987. Isotopic evidence for the provenance and Caledonian metamorphism of high grade paragneisses from the Seve Nappes, Scandinavian Caledonides: ion microprobe zircon U-Th-Pb. Contrib Mineral Petr 97: 205-217.