Relationship between magnetite chemistry and magnetic susceptibility of igneous rocks: Implications for sedimentary provenance studies
A direct relationship between magnetite chemistry and rock magnetic susceptibility has been found. Electron probe microanalysis of titanomagnetites from various igneous rocks has shown them to be enriched in either the ulvospinel phase (Fe2TiO/j) or in the magnetite phase (Fe3OJ. It has been found t...
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| Formato: | artículo |
| Fecha de publicación: | 1996 |
| País: | España |
| Recursos: | Universidad de Huelva (UHU) |
| Repositorio: | Arias Montano. Repositorio Institucional de la Universidad de Huelva |
| Idioma: | inglés |
| OAI Identifier: | oai:ariasmontano.uhu.es:10272/12394 |
| Acesso em linha: | http://hdl.handle.net/10272/12394 |
| Access Level: | acceso abierto |
| Palavra-chave: | Magnetite Ulvospinel Magnetic susceptibility Sedimentary provenance |
| Resumo: | A direct relationship between magnetite chemistry and rock magnetic susceptibility has been found. Electron probe microanalysis of titanomagnetites from various igneous rocks has shown them to be enriched in either the ulvospinel phase (Fe2TiO/j) or in the magnetite phase (Fe3OJ. It has been found that the greater the enrichment in the magnetite phase of the titanomagnetites, the higher the magnetic susceptibility value for chemically similar rocks. Both magnetic and chemical data may be used to characterise the rocks (potential sources of sediments) which has important implications for sedimentary provenance studies |
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