Geochemistry of marine humic compounds [Libro electrónico] / M. A. Rashid
Por: Rashid, M. A [autor/a].
Tipo de material: Libro en línea Editor: New York, New York, United States: Springer-Verlag, c1985Descripción: xii, 300 páginas : ilustraciones ; 28 centímetros.ISBN: 0387961356; 9781461571001 (Print); 9781461570981 (Online).Tema(s): Humic acid | Organic geochemistry | Chemical oceanographyNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso Nota de bibliografía: Incluye bibliografía e índice: páginas 273-291 Número de sistema: 55373Contenidos:Mostrar Resumen:Tipo de ítem | Biblioteca actual | Colección | Signatura | Estado | Fecha de vencimiento | Código de barras |
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Libros | Biblioteca Electrónica Recursos en línea (RE) | Acervo General | Recurso digital | ECO4005537389 |
Incluye bibliografía e índice: páginas 273-291
1. Origin and distribution of organic compounds in the marine environment.. 2. Humification-a major biogeochemical phenomenon.. 3. Physico-chemical characteristics of marine humic compounds.. 4. Organo-metal reactions and their geochemical significance.. 5. Reactions of humic compounds with sedimentary minerals.. 6. Diagenetic transformations of humic compounds.. 7. Paleo- and contemporary environmental implications of humic compounds.. 8. Role of humic compounds in aquatic productivity.. Index
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Some 90 years ago, the first information on the occurrence of dissolved organic matter in sea water was published. For 50 years after that reve- lation, little progress was made in identifying these dissolved "yellow substances." In the 1950s and 1960s, a few chemical oceanographers identified some specific dissolved organic compounds, but few of these pioneers fully appreciated their significance in terms of biological inter- actions, metal chelation, or interactions with sedimentary material. When Mohammed Rashid began his work on marine humic compounds in the mid-1960s, he was one of only five scientists who had specifically designed their studies toward understanding the nature of these complex materials. Over the next decade, Dr. Rashid directed his research toward characterization of humic and fulvic compounds in the marine environ- ment, the influence of humic substances on the growth of marine phy- toplankton, the role of organic matter in complexing metals in sea water and marine sediments, the interaction between humic substances and clay minerals in marine environments, and the influence of organic matter on the geotechnical properties of marine sediments. As if the many papers produced from these scientific investigations were not sufficient. eng
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