The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experiments
Field observations were made of the distribution of trace metals in water and sediments along a chlorinity gradient from 20-160‰ in the seasonally hypersaline Ceuta lagoon, Sinaloa, Mexico. The observations revealed a non-consecutive behaviour of the metals (with respect to chlorinity) with a rapid...
| Asıl Yazarlar: | , |
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| Materyal Türü: | Makale |
| Dil: | English |
| Baskı/Yayın Bilgisi: |
Universidad Autónoma de Baja California
1991-03-01
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| Seri Bilgileri: | Ciencias Marinas |
| Konular: | |
| Online Erişim: | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/846 |
| _version_ | 1827330482647334912 |
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| author | LD Mee JI Osuna-López |
| author_facet | LD Mee JI Osuna-López |
| author_sort | LD Mee |
| collection | DOAJ |
| description |
Field observations were made of the distribution of trace metals in water and sediments along a chlorinity gradient from 20-160‰ in the seasonally hypersaline Ceuta lagoon, Sinaloa, Mexico. The observations revealed a non-consecutive behaviour of the metals (with respect to chlorinity) with a rapid loss of metals to the sediments from chlorinity 20-50‰, a net desorption of metals from the sediments from 50-155‰ and finally, precipitation with halite or the last bitters. Radiochemical laboratoty experiments were performed to examine possible solid-solution formation of Ni, Co and Mn with the calcium carbonate and gypsum phases formed during seawater evaporation and the partition of Co and Mn between suspended sediments and seawater throughout the chlorinity range of the lagoon. From the laboratory experiments and a simple descriptive model of a hypersaline basin, it was concluded that the behaviour of trace metals in the lagoon results from variations in the adsorption/desorption equilibria with the sediments rather than solid solution formation.
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| first_indexed | 2024-03-07T16:11:42Z |
| format | Article |
| id | doaj.art-1b34916155e24abcb6c0b697e24ea205 |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:11:42Z |
| publishDate | 1991-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-1b34916155e24abcb6c0b697e24ea2052024-03-04T16:44:05ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90531991-03-0117410.7773/cm.v17i4.846The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experimentsLD Mee0JI Osuna-López1International Laboratory of Marine RadioactivityUniversidad Nacional Autónoma de México Field observations were made of the distribution of trace metals in water and sediments along a chlorinity gradient from 20-160‰ in the seasonally hypersaline Ceuta lagoon, Sinaloa, Mexico. The observations revealed a non-consecutive behaviour of the metals (with respect to chlorinity) with a rapid loss of metals to the sediments from chlorinity 20-50‰, a net desorption of metals from the sediments from 50-155‰ and finally, precipitation with halite or the last bitters. Radiochemical laboratoty experiments were performed to examine possible solid-solution formation of Ni, Co and Mn with the calcium carbonate and gypsum phases formed during seawater evaporation and the partition of Co and Mn between suspended sediments and seawater throughout the chlorinity range of the lagoon. From the laboratory experiments and a simple descriptive model of a hypersaline basin, it was concluded that the behaviour of trace metals in the lagoon results from variations in the adsorption/desorption equilibria with the sediments rather than solid solution formation. http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/846n/a |
| spellingShingle | LD Mee JI Osuna-López The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experiments Ciencias Marinas n/a |
| title | The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experiments |
| title_full | The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experiments |
| title_fullStr | The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experiments |
| title_full_unstemmed | The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experiments |
| title_short | The trace metal chemistry of a tropical hypersaline basin: Evidence from field and laboratory experiments |
| title_sort | trace metal chemistry of a tropical hypersaline basin evidence from field and laboratory experiments |
| topic | n/a |
| url | http://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/846 |
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