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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2023
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| Online Access: | https://doi.org/10.1594/PANGAEA.960332 |
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| _version_ | 1867168222806016000 |
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| author | Tsunogai, Shizuo Nakanishi, Keita Yamada, Masatoshi |
| author_facet | Tsunogai, Shizuo Nakanishi, Keita Yamada, Masatoshi |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The nodules used in this study were collected from two cruises in the western North Pacific by box coring (KH-79-4) and dredging (GH-78-1). After being dried at 110°C each sample extracted from the top, side and bottom of the nodule at various penetration levels, a chemical separation technique was used in a 6% acetic acid solution (fraction A). The residual was then submitted to a mixture 6% (IM) acetic acid and IM hydroxylamine hydrochloride (a reducing agent). The leachant is designated as fraction B and the dry residual (fraction B). On each part, acetylene-air flame atomic absorption spectrophotometry was used for the determination of Fe, Mn, Co and Ni. Aluminium was determined by acetylene-nitrous oxide flame atomic absorption spectrophotometry. Flameless atomic absorption spectrophotometry was used to determine Co, Ni and Cu. Dissolved silicate was determined by the standard colorimetric method of molybdenum yellow by adding boric acid as a masking agent for fluoride. The table presents the bulk composition as a recombination of the 3 parts analysed. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_960332 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Bulk chemical composition of manganese nodules at various levels of their external manganese rich layers Tsunogai, Shizuo Nakanishi, Keita Yamada, Masatoshi Aluminium; Atomic absorption spectrophotometry; BC; Box corer; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Distance; Distance, maximum; Distance, minimum; ELEVATION; Event label; Geochemistry; GH78-1; GH78-1-FG73-1; Grab; GRAB; growth; Hakuho-Maru; Hakurei-Maru (1974); Identification; Iron; KH-79-4; KH-79-4-22; LATITUDE; LONGITUDE; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Sample type; Sediment; Silicon; Station 1036; Station 22 The nodules used in this study were collected from two cruises in the western North Pacific by box coring (KH-79-4) and dredging (GH-78-1). After being dried at 110°C each sample extracted from the top, side and bottom of the nodule at various penetration levels, a chemical separation technique was used in a 6% acetic acid solution (fraction A). The residual was then submitted to a mixture 6% (IM) acetic acid and IM hydroxylamine hydrochloride (a reducing agent). The leachant is designated as fraction B and the dry residual (fraction B). On each part, acetylene-air flame atomic absorption spectrophotometry was used for the determination of Fe, Mn, Co and Ni. Aluminium was determined by acetylene-nitrous oxide flame atomic absorption spectrophotometry. Flameless atomic absorption spectrophotometry was used to determine Co, Ni and Cu. Dissolved silicate was determined by the standard colorimetric method of molybdenum yellow by adding boric acid as a masking agent for fluoride. The table presents the bulk composition as a recombination of the 3 parts analysed. |
| title | Bulk chemical composition of manganese nodules at various levels of their external manganese rich layers |
| topic | Aluminium; Atomic absorption spectrophotometry; BC; Box corer; Cobalt; Copper; Deposit type; DEPTH, sediment/rock; Distance; Distance, maximum; Distance, minimum; ELEVATION; Event label; Geochemistry; GH78-1; GH78-1-FG73-1; Grab; GRAB; growth; Hakuho-Maru; Hakurei-Maru (1974); Identification; Iron; KH-79-4; KH-79-4-22; LATITUDE; LONGITUDE; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; Sample type; Sediment; Silicon; Station 1036; Station 22 |
| url | https://doi.org/10.1594/PANGAEA.960332 |