| Journal: | Journal of the Geological Survey of Brazil |
| Database: | PERIÓDICA |
| System number: | 000426519 |
| ISSN: | 2595-1939 |
| Authors: | Cavalcante, Rogerio1 Medeiros, Vladimir Cruz de1 Costa, Alan Pereira da1 Sa, Jaziel Martins2 Santos, Roberto Ventura3 Rodrigues, Joseneusa Brilhante4 Dantas, Alexandre Ranier1 Nascimento, Marcos Antonio Leite do2 Cunha, Andre Luiz Carneiro da5 |
| Institutions: | 1 2Servico Geologico do Brasil, Natal, Rio Grande do Norte. Brasil 3Universidade Federal do Rio Grande do Norte, Departamento de Geologia, Natal, Rio Grande do Norte. Brasil 4Universidade de Brasilia, Departamento de Geologia, Brasilia, Distrito Federal. Brasil 5Servico Geologico do Brasil, Brasilia, Distrito Federal. Brasil 6Servico Geologico do Brasil, Recife, Pernambuco. Brasil |
| Year: | 2018 |
| Season: | Abr |
| Volumen: | 1 |
| Number: | 1 |
| Pages: | 11-29 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | Aeromagnetic, petrographic and isotopic data coupled with information obtained from a deep stratigraphic hole (440 m), shallow drillings (<100 m), and field data from the surroundings of the Saquinho iron mine in the Rio-Piranhas-Seridó domain of the Borborema Province, northeastern Brazil, allowed to identify a Neoarchean unit while providing a better understanding of the stratigraphy of the Jucurutu Formation, the host of the iron mineralization, and its basement. The drill hole allowed differentiating three compartments (upper, intermediate and lower). The upper compartment consists of paragneisses/schists, marbles and banded iron formations (top to bottom, respectively) correlated to the Jucurutu Formation (Seridó Group). The marbles provided δ13C and δ18O values ranging from 2.4 to 10.4‰ and from -9.7 to -5.3‰, respectively, which are compatible with those of marine-glacial carbonates and correlated to those of the Jucurutu Formation |
| Disciplines: | Geociencias |
| Keyword: | Geología, Neoarqueano, Complejo Saquinho, Formación Jucurutu, Mineral de hierro, Brasil |
| Keyword: | Neoarchean, Saquinho Complex, Jucurutu Formation, Stratigraphy, Iron ore, Brazil |
| Full text: | Texto completo (Ver HTML) |
