Degree of trace metal pyritization in sediments from the pacific coast of Baja California, México
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| Format: | Artículo científico |
| Language: | en |
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Universidad Autónoma de Baja California
2001
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| _version_ | 1876448109390725120 |
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| author | Miguel Angel Huerta Díaz |
| author_facet | Miguel Angel Huerta Díaz |
| contents | Degree of trace metal pyritization in sediments from the pacific coast of Baja California, México Miguel Angel Huerta Díaz Carmen Nava López Ciencias de la Tierra pyrite sediment trace metals Baja California degree of trace metal pyritization We analyzed sediments from a core collected on the Pacific coast of Baja California, ~45 km off thecity of Tijuana and at 1257 m water depth (32º29.5¢N, 117º28.3¢W), for trace metal content in twooperationally-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) thataveraged 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 forsome metals were close to 100%. This transference is apparently a function of the solubility products ofmetal sulfides and the relative abundances of metals in the HCl fraction, as suggested by the significantcorrelation (p < 0.001) observed between these two parameters and the DTMP of a number of tracemetals. A similar correlation was obtained from published data of two cores collected in the Gulf ofMexico. 2001 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48027208 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.27 |
| format | Artículo científico |
| id | redalyc_48027208 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Autónoma de Baja California |
| spellingShingle | Degree of trace metal pyritization in sediments from the pacific coast of Baja California, México Miguel Angel Huerta Díaz Ciencias de la Tierra pyrite sediment trace metals Baja California degree of trace metal pyritization Degree of trace metal pyritization in sediments from the pacific coast of Baja California, México Miguel Angel Huerta Díaz Carmen Nava López Ciencias de la Tierra pyrite sediment trace metals Baja California degree of trace metal pyritization We analyzed sediments from a core collected on the Pacific coast of Baja California, ~45 km off thecity of Tijuana and at 1257 m water depth (32º29.5¢N, 117º28.3¢W), for trace metal content in twooperationally-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) thataveraged 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 forsome metals were close to 100%. This transference is apparently a function of the solubility products ofmetal sulfides and the relative abundances of metals in the HCl fraction, as suggested by the significantcorrelation (p < 0.001) observed between these two parameters and the DTMP of a number of tracemetals. A similar correlation was obtained from published data of two cores collected in the Gulf ofMexico. 2001 artículo científico 0185-3880 https://www.redalyc.org/articulo.oa?id=48027208 en http://www.redalyc.org/revista.oa?id=480 Ciencias Marinas application/pdf Universidad Autónoma de Baja California Ciencias Marinas (México) Num.2 Vol.27 |
| title | Degree of trace metal pyritization in sediments from the pacific coast of Baja California, México |
| topic | Ciencias de la Tierra pyrite sediment trace metals Baja California degree of trace metal pyritization |
| url | https://www.redalyc.org/articulo.oa?id=48027208 |