| Revista: | Journal of the Geological Survey of Brazil |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000426525 |
| ISSN: | 2595-1939 |
| Autores: | Oliveira, Roberto Gusmao de1 |
| Instituciones: | 1Servico Geologico do Brasil, Divisao de Geofisica, Recife, Pernambuco. Brasil |
| Año: | 2018 |
| Periodo: | Dic |
| Volumen: | 1 |
| Número: | 3 |
| Paginación: | 101-112 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | This work interprets and models aerogravity data surveyed in the Carajás Province (also Carajás Domain) - Eastern Amazonian Craton, with the purpose of understanding the deep tectonic framework of this region and sketching the three-dimensional shape of the Carajás Basin. Initially, a comparison was made between the gravity signatures of the Carajás Domain in relation to those of the Rio Maria, Bacajá and Iriri-Xingu domains. This comparison demonstrates that the gravity anomaly configuration of the Rio Maria Domain is similar to the tectonic pattern observed in ancient Archean terranes (dome-and-keel geometry) elsewhere, while the gravity anomaly arrangement of the Carajás Domain forms positive gravity belts suggesting the deposition of volcano-sedimentary rocks in elongated basins. The gravity pattern observed at the boundary between the Carajás and Bacajá domains has similarities with the shape observed in continental collision belts from several continents |
| Disciplinas: | Geociencias |
| Palabras clave: | Geofísica, Cratones, Cuenca de Carajás, Gravedad, Amazonas, Brasil |
| Keyword: | Geophysics, Cratons, Carajas Basin, Gravity, Amazon, Brazil |
| Texto completo: | Texto completo (Ver HTML) |
