Neodymium isotope ratios for iron-manganese crusts and manganese nodules of the Pacific Ocean
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2022
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| _version_ | 1867169151625199616 |
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| author | Aplin, Andrew C Michard, Annie Albarède, Francis |
| author_facet | Aplin, Andrew C Michard, Annie Albarède, Francis |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Iron-manganese crusts were chosen from existing collections in order to cover as wide an area and depth range as possible. Sampling was concentrated in the Central Pacific seamount provinces where crusts are most commonly found coating lithic substrates. Two Mn nodules from similar areas were also sampled for comparison. Sub-samples were taken for isotopic analysis from known depths within individual crusts and nodules either by use of a stainless steel dental drill or by chipping away surface oxide layers. After grinding in an agate pestle and mortar, authigenic Fe-Mn oxides were leached with warm 25N HCl Solutions were evaporated to dryness and Nd isolated and analysed isotopically. All ratios were normalized to a 143Nd/144Nd ratio of 0.7219, and repeated analyses of the La Jolla standard gave an average value of 0.511847 ± 21 (unweighted). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_945862 |
| institution | PANGAEA |
| language | en |
| publishDate | 2022 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Neodymium isotope ratios for iron-manganese crusts and manganese nodules of the Pacific Ocean Aplin, Andrew C Michard, Annie Albarède, Francis AMPH-009D; AMPH01AR; AMPH02AR-009D; AMPHITRITE; Argo; ARIES; ARIES-029D; ARIES-056D; BENTHIC; BNTH06MV; BNTH06MV-9D; CASC-8D; CASCADIA; CATO; CATO03MV; CATO-3MV-33D; CK-80(1)-WG10; CK-80(1)-WG-CM3; CK-80-1; Deposit type; Device type; Distance; Distance, maximum; Distance, minimum; DODO; DODO-007D; DODO-014D; DOWNWIND-H; Dredge; Dredge, rock; DRG; DRG_R; DWHD47; DWHD72; Elevation of event; Epce; Estimated; Event label; Geochemistry; Grab; GRAB; Horizon; Identification; Kana Keoki; KK760806; KK760806-01,KK760806-02,KK76; KK760806-01-RD12; KK77; KK770317; KK770317-4 M01; KK770317-4 M09; KK770317-4-RD01; KK770317-4-RD09; KK790808; KK790808-1-RD50; KK790808-2-RD53; KK790808-RD41; KK790808-RD44; KK790808-RD51; KK791029; KK791029-RD58; KK791029-RD59; KK791029-RD60; KK791029-RD62; KK791029-RD64; Latitude of event; Longitude of event; Machias; manganese micronodule; manganese nodule; Melville; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North-East Pacific Ocean; ocean; Pacific Ocean; Pacific Oean; Sediment; STA120; STA124; STA129; STA130; STA136; STA137; STA138; STA140; STA141; Station 12; Thomas Washington; V18; V18-29RD; Vema; WGCM-03-WGCM-13 (Station 3); ε-Neodymium (0) Iron-manganese crusts were chosen from existing collections in order to cover as wide an area and depth range as possible. Sampling was concentrated in the Central Pacific seamount provinces where crusts are most commonly found coating lithic substrates. Two Mn nodules from similar areas were also sampled for comparison. Sub-samples were taken for isotopic analysis from known depths within individual crusts and nodules either by use of a stainless steel dental drill or by chipping away surface oxide layers. After grinding in an agate pestle and mortar, authigenic Fe-Mn oxides were leached with warm 25N HCl Solutions were evaporated to dryness and Nd isolated and analysed isotopically. All ratios were normalized to a 143Nd/144Nd ratio of 0.7219, and repeated analyses of the La Jolla standard gave an average value of 0.511847 ± 21 (unweighted). |
| title | Neodymium isotope ratios for iron-manganese crusts and manganese nodules of the Pacific Ocean |
| topic | AMPH-009D; AMPH01AR; AMPH02AR-009D; AMPHITRITE; Argo; ARIES; ARIES-029D; ARIES-056D; BENTHIC; BNTH06MV; BNTH06MV-9D; CASC-8D; CASCADIA; CATO; CATO03MV; CATO-3MV-33D; CK-80(1)-WG10; CK-80(1)-WG-CM3; CK-80-1; Deposit type; Device type; Distance; Distance, maximum; Distance, minimum; DODO; DODO-007D; DODO-014D; DOWNWIND-H; Dredge; Dredge, rock; DRG; DRG_R; DWHD47; DWHD72; Elevation of event; Epce; Estimated; Event label; Geochemistry; Grab; GRAB; Horizon; Identification; Kana Keoki; KK760806; KK760806-01,KK760806-02,KK76; KK760806-01-RD12; KK77; KK770317; KK770317-4 M01; KK770317-4 M09; KK770317-4-RD01; KK770317-4-RD09; KK790808; KK790808-1-RD50; KK790808-2-RD53; KK790808-RD41; KK790808-RD44; KK790808-RD51; KK791029; KK791029-RD58; KK791029-RD59; KK791029-RD60; KK791029-RD62; KK791029-RD64; Latitude of event; Longitude of event; Machias; manganese micronodule; manganese nodule; Melville; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North-East Pacific Ocean; ocean; Pacific Ocean; Pacific Oean; Sediment; STA120; STA124; STA129; STA130; STA136; STA137; STA138; STA140; STA141; Station 12; Thomas Washington; V18; V18-29RD; Vema; WGCM-03-WGCM-13 (Station 3); ε-Neodymium (0) |
| url | https://doi.org/10.1594/PANGAEA.945862 |