| Journal: | Revista brasileira de geofisica |
| Database: | PERIÓDICA |
| System number: | 000338460 |
| ISSN: | 0102-261X |
| Authors: | Ferraz, Andre Etienne Pacifico Pecanha Demonte1 Silva, Adalberto da1 Ferrari, Andre Luiz1 |
| Institutions: | 1Universidade Federal Fluminense, Instituto de Geociencias, Niteroi, Rio de Janeiro. Brasil |
| Year: | 2008 |
| Season: | Oct-Dic |
| Volumen: | 26 |
| Number: | 4 |
| Pages: | 469-480 |
| Country: | Brasil |
| Language: | Portugués |
| Document type: | Artículo |
| Approach: | Analítico, descriptivo |
| English abstract | The analysis of aeromagnetic data from the continental shelf area near the Santos Basin border shows several punctual anomalies that can be related to alkaline bodies as observed in the adjacent onshore area. In this paper we propose a comparative analysis of the magnetic anomalies associated to the well know onshore Arraial do Cabo (Cabo Frio, Rio de Janeiro, Brazil) alkaline bodies and a prominent anomaly located near the Santos Basin Cretaceous hinge line. Here we propose a non-conventional workflow applying the 2D Euler deconvolution method integrated in a routine that honors information derived from the analytical signal amplitudes and that embodies two distinct criteria to compute and analyze the solutions. Also a routine to directly estimate the parameters was implemented in order to compare with the solutions obtained by applying those criteria |
| Portuguese abstract | Diversas anomalias isoladas sao observadas a partir de dados aeromagnetometricos na regiao da plataforma continental adjacente a Bacia de Santos. Estas anomalias sao associadas a intrusoes alcalinas por comparacao com as anomalias de corpos aflorantes conhecidos. Neste trabalho e apresentado um estudo comparativo entre a resposta magnetica dos corpos alcalinos aflorantes ou subaflorantes conhecidos na regiao de Arraial do Cabo (Cabo Frio, RJ) e uma noavel anomalia que ocorre na area submersa, proxima a charneira cretacea da Bacia de Santos |
| Disciplines: | Geociencias |
| Keyword: | Geofísica, Deconvolución de Euler, Datos aeromagnéticos, Alta resolución, Magmatismo, Magma alcalino, Cuenca de Santos, Cabo Frío, Brasil |
| Keyword: | Earth sciences, Geophysics, Euler deconvolution, Aeromagnetic data, High resolution, Alkaline magma, Magmatism, Santos basin, Cabo Frio, Brazil |
| Full text: | Texto completo (Ver PDF) |
