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Participation of cratonic units of South America in the evolution of supercontinents since the Mesoproterozoic period

Grant number: 98/03621-4
Support Opportunities:Research Projects - Thematic Grants
Duration: August 01, 1998 - October 31, 2003
Field of knowledge:Physical Sciences and Mathematics - Geosciences - Geophysics
Principal Investigator:Igor Ivory Gil Pacca
Grantee:Igor Ivory Gil Pacca
Host Institution: Instituto de Astronomia, Geofísica e Ciências Atmosféricas (IAG). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Pesquisadores principais:
Leila Soares Marques


The project aims to a study of the geodynamic evolution of units that formed Western Gondwana from Mesoproterozoic to Eopaleozoic, a period of time that includes the episodes of Rodinia formation, its disaggregation and the later amalgamation of Gondwana. Rock samples will be collected from the selected units for the obtention of paleomagnetic, geochemical and geochronological data. in the Amazonia Craton the Guajará Mirim, Rio Branco and Aguapeí groups and eventually units from the Uatumã and Beneficente groups will be studied. In order to supplement existing data for the São Francisco Craton the alkaline province in the Itabuna region and neoproterozoic carbonates from the Bambuí group will also be analysed. Neoproterozoic-Eopaleozoic units associated with the Brasiliano mobile belts will also be part of the project. Twelve filed work excursions are planned for the four years of the project to the Amazonia and São Francisco Cratons and to the States of Ceará, Paraná and Santa Catarina. Sampling for paleomagnetism will always be coordinated with participants and collaborators in the areas of Geochemistry and Geochronology so as to enable a comparative analysis of the data. (AU)

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Scientific publications (7)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
FONT‚ E.; TRINDADE‚ RIF; NÉDÉLEC‚ A.. Detrital remanent magnetization in haematite-bearing Neoproterozoic Puga cap dolostone‚ Amazon craton: a rock magnetic and SEM study. Geophysical Journal International, v. 163, n. 2, p. 491-500, . (98/03621-4)
D’AGRELLA-FILHO‚ MS; BABINSKI‚ M.; TRINDADE‚ RIF; VAN SCHMUS‚ WR; ERNESTO‚ M.. Simultaneous remagnetization and U-Pb isotope resetting in Neoproterozoic carbonates of the Sao Francisco craton‚ Brazil. Precambrian Research, v. 99, n. 3, p. 179-196, . (98/03621-4)
TOHVER, ERIC; D’AGRELLA-FILHO, MANOEL SOUZA; TRINDADE, RICARDO I. F.. Paleomagnetic record of Africa and South America for the 1200-500 Ma interval, and evaluation of Rodinia and Gondwana assemblies. Precambrian Research, v. 147, n. 3/4, p. 193-222, . (98/03621-4)
FONT, E.; NEDELEC, A.; TRINDADE, R. I. F.; MOREAU, C.. Fast or slow melting of the Marinoan snowball Earth? The cap dolostone record. PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY, v. 295, n. 1-2, p. 215-225, . (98/03621-4)
TRINDADE, RICARDO I. F.; D'AGRELLA-FILHO, MANOEL SOUZA; EPOF, IGOR; NEVES, BENJAMIM B. BRITO. Paleomagnetism of Early Cambrian Itabaiana mafic dikes (NE Brazil) and the final assembly of Gondwana. Earth and Planetary Science Letters, v. 244, n. 1/2, p. 361-377, . (98/03621-4)
TRINDADE‚ RIF; FONT‚ E.; D’AGRELLA-FILHO‚ MS; NOGUEIRA‚ ACR; RICCOMINI‚ C.. Low-latitude and multiple geomagnetic reversals in the Neoproterozoic Puga cap carbonate‚ Amazon craton. TERRA NOVA, v. 15, n. 6, p. 441-446, . (98/03621-4)

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