Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexico
We analyzed sediments from a core collected on the Pacific coast of Baja California, ~45 km off the city of Tijuana and at 1257 m water depth (32º29.5′N, 117º28.3′W), for trace metal content in two operationally-defined fractions, HCl and pyrite. Our results indicate a transference of Cu > Ni &g...
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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2001-03-01
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| Series: | Ciencias Marinas |
| Subjects: | |
| Online Access: | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/456 |
| _version_ | 1797279350307946496 |
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| author | C Nava-López MA Huerta-Díaz |
| author_facet | C Nava-López MA Huerta-Díaz |
| author_sort | C Nava-López |
| collection | DOAJ |
| description |
We analyzed sediments from a core collected on the Pacific coast of Baja California, ~45 km off the city of Tijuana and at 1257 m water depth (32º29.5′N, 117º28.3′W), for trace metal content in two operationally-defined fractions, HCl and pyrite. Our results indicate a transference of Cu > Ni > Zn >> Hg and Ag from the HCl to the pyrite fraction. Sediments have degrees of pyritization (DOP) that averaged 7.2 ± 4.9%, with a maximum value of 18.5%. Average degrees of trace metal pyritization (DTMP) ranged from 6.2 ± 2.1% to 83 ± 18% for Mn and Hg, respectively, although maximum values for some metals were close to 100%. This transference is apparently a function of the solubility products of metal sulfides and the relative abundances of metals in the HCl fraction, as suggested by the significant correlation (p < 0.001) observed between these two parameters and the DTMP of a number of trace metals. A similar correlation was obtained from published data of two cores collected in the Gulf of Mexico.
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| first_indexed | 2024-03-07T16:24:01Z |
| format | Article |
| id | doaj.art-d482a4d8c788443b83002535d0d4d5e3 |
| institution | Directory Open Access Journal |
| issn | 0185-3880 2395-9053 |
| language | English |
| last_indexed | 2024-03-07T16:24:01Z |
| publishDate | 2001-03-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Ciencias Marinas |
| spelling | doaj.art-d482a4d8c788443b83002535d0d4d5e32024-03-03T19:35:50ZengUniversidad Autónoma de Baja CaliforniaCiencias Marinas0185-38802395-90532001-03-0127210.7773/cm.v27i2.456Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexicoC Nava-López0MA Huerta-Díaz1Universidad Autónoma de Baja CaliforniaUniversidad Autónoma de Baja California We analyzed sediments from a core collected on the Pacific coast of Baja California, ~45 km off the city of Tijuana and at 1257 m water depth (32º29.5′N, 117º28.3′W), for trace metal content in two operationally-defined fractions, HCl and pyrite. Our results indicate a transference of Cu > Ni > Zn >> Hg and Ag from the HCl to the pyrite fraction. Sediments have degrees of pyritization (DOP) that averaged 7.2 ± 4.9%, with a maximum value of 18.5%. Average degrees of trace metal pyritization (DTMP) ranged from 6.2 ± 2.1% to 83 ± 18% for Mn and Hg, respectively, although maximum values for some metals were close to 100%. This transference is apparently a function of the solubility products of metal sulfides and the relative abundances of metals in the HCl fraction, as suggested by the significant correlation (p < 0.001) observed between these two parameters and the DTMP of a number of trace metals. A similar correlation was obtained from published data of two cores collected in the Gulf of Mexico. https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/456trace metalspyritesedimentdegree of trace metal pyritizationBaja California |
| spellingShingle | C Nava-López MA Huerta-Díaz Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexico Ciencias Marinas trace metals pyrite sediment degree of trace metal pyritization Baja California |
| title | Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexico |
| title_full | Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexico |
| title_fullStr | Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexico |
| title_full_unstemmed | Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexico |
| title_short | Degree of trace metal pyritization in sediments from the Pacific coast of baja california, mexico |
| title_sort | degree of trace metal pyritization in sediments from the pacific coast of baja california mexico |
| topic | trace metals pyrite sediment degree of trace metal pyritization Baja California |
| url | https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/456 |
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