Description and chemical analysis of manganese nodules from the Pacific Ocean
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
1976
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| _version_ | 1867168570512769024 |
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| author | Fewkes, Ronald H |
| author_facet | Fewkes, Ronald H |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Analyses of small samples extracted from different parts of a single manganese nodule have been reported by several investigators, clearly documenting the belief that a nodule is not homogeneous chemically, as a rule. The same sort of evidence has been gathered by use of the X-ray macroprobe and electron microprobe analyses. The X-ray probe work has shown clearly that chemical variations within a nodule can be correlated with optically recognizable mineral,and therefore optical study can tell much about chemical variations and obviate much probe analysis. As we have reported many times, optically anisotropic crystalline todorokite and birnessite contain the bulk of the Mn, Ni, and Cu in any nodule whereas optically isotropic and X-ray amorphous oxides contain most of the Fe and Co in the same nodule. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_879754 |
| institution | PANGAEA |
| language | en |
| publishDate | 1976 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Description and chemical analysis of manganese nodules from the Pacific Ocean Fewkes, Ronald H NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS Analyses of small samples extracted from different parts of a single manganese nodule have been reported by several investigators, clearly documenting the belief that a nodule is not homogeneous chemically, as a rule. The same sort of evidence has been gathered by use of the X-ray macroprobe and electron microprobe analyses. The X-ray probe work has shown clearly that chemical variations within a nodule can be correlated with optically recognizable mineral,and therefore optical study can tell much about chemical variations and obviate much probe analysis. As we have reported many times, optically anisotropic crystalline todorokite and birnessite contain the bulk of the Mn, Ni, and Cu in any nodule whereas optically isotropic and X-ray amorphous oxides contain most of the Fe and Co in the same nodule. |
| title | Description and chemical analysis of manganese nodules from the Pacific Ocean |
| topic | NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS |
| url | https://doi.org/10.1594/PANGAEA.879754 |