Study of anthropogenically induced trace metals on the continental shelf in the southeastem part of the Gulf of Mexico
A series of oceanographic cruises were perform from March 1988 to March 1990 on thecontinental shelf in the southeastern Gulf of México in order to study if the activities of theextraction industry of hydrocarbons are reflected in the sediments of this area. Thesestudies made it possible to determin...
| Autores: | , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1994 |
| País: | México |
| Recursos: | Universidad Nacional Autónoma de México |
| Repositorio: | Redalyc-UNAM |
| OAI Identifier: | oai:redalyc.org:37010101 |
| Acesso em linha: | https://www.redalyc.org/articulo.oa?id=37010101 |
| Access Level: | acceso abierto |
| Palavra-chave: | Ciencias de la Tierra Ba Cr Cd Pb metals |
| Resumo: | A series of oceanographic cruises were perform from March 1988 to March 1990 on thecontinental shelf in the southeastern Gulf of México in order to study if the activities of theextraction industry of hydrocarbons are reflected in the sediments of this area. Thesestudies made it possible to determine the area influenced by the Grijalva-Usumacinta Riverthrough granulomehic (mud load) and chemical (aluminum concentration) parameters.The load sediment of the riven moves in a northerly direction. The concentration anddistribution pattem were studied in the sediments of four anthropogenically induced heavymetals: cadmium, chromium, barium and lead. Cadmium was not detected and lead valueswere low (18 pprn). Chromium levels were between 66 and 366 pprn and its distributionpattem suggests that this metal is transported by the rivers to the shelf area. The levels ofbarium concentration were between 33 and 767 pprn and its distribution pattern suggestsan anthropogenic source &ated to the extraction industry of hydrocarbons. |
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