(Table 1, page 119) 10Be and 9Be concentrations in manganese nodules of the Pacific Ocean
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| Format: | Dataset Open Access |
| Sprache: | en |
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1972
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| _version_ | 1867171842788163584 |
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| author | Krishnaswami, Seth Somayajulu, Bammidipati L K Moore, Willard S |
| author_facet | Krishnaswami, Seth Somayajulu, Bammidipati L K Moore, Willard S |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The usefulness of cosmogenic beryllium-10 (half life = 2.5 Ma) for studying the rates of accumulation of ferromanganese nodules is reported based on its measured depth distribution in the top 20 mm of these deposits. Accumulation rates have been obtained in the range of 1 to 4 mm/Ma, which are in good agreement with rates determined using the 230Th method on the same nodules. The use of 10Be offers promise in extending the dating to the outer few cm of the nodules. This contrasts with conventional methods using 230Th and 231Pa isotopes which, due to their comparatively short half lives, are limited to a few mm at the surface of the nodules. Detailed studies of 10Be in the manganese deposits coupled with other trace element analyses should prove valuable in understanding the processes of formation of these deposits and the chronology of events recorded by them. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_865194 |
| institution | PANGAEA |
| language | en |
| publishDate | 1972 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1, page 119) 10Be and 9Be concentrations in manganese nodules of the Pacific Ocean Krishnaswami, Seth Somayajulu, Bammidipati L K Moore, Willard S Activity; Activity, standard deviation; Argo; Beryllium-10, standard deviation; Beryllium-10 decay; Beryllium-9; Date/Time of event; Deposit type; DEPTH, sediment/rock; DISTANCE; Distance, maximum; Distance, minimum; DODO; DODO-015D-1; Dredge; DRG; East Pacific Ocean; Elevation of event; Event label; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Sample ID; TRI-02D; TRIP03AR; TRIPOD_3; ZETES; ZTES03AR; ZTES03AR-003D; ZTES-3D The usefulness of cosmogenic beryllium-10 (half life = 2.5 Ma) for studying the rates of accumulation of ferromanganese nodules is reported based on its measured depth distribution in the top 20 mm of these deposits. Accumulation rates have been obtained in the range of 1 to 4 mm/Ma, which are in good agreement with rates determined using the 230Th method on the same nodules. The use of 10Be offers promise in extending the dating to the outer few cm of the nodules. This contrasts with conventional methods using 230Th and 231Pa isotopes which, due to their comparatively short half lives, are limited to a few mm at the surface of the nodules. Detailed studies of 10Be in the manganese deposits coupled with other trace element analyses should prove valuable in understanding the processes of formation of these deposits and the chronology of events recorded by them. |
| title | (Table 1, page 119) 10Be and 9Be concentrations in manganese nodules of the Pacific Ocean |
| topic | Activity; Activity, standard deviation; Argo; Beryllium-10, standard deviation; Beryllium-10 decay; Beryllium-9; Date/Time of event; Deposit type; DEPTH, sediment/rock; DISTANCE; Distance, maximum; Distance, minimum; DODO; DODO-015D-1; Dredge; DRG; East Pacific Ocean; Elevation of event; Event label; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Sample ID; TRI-02D; TRIP03AR; TRIPOD_3; ZETES; ZTES03AR; ZTES03AR-003D; ZTES-3D |
| url | https://doi.org/10.1594/PANGAEA.865194 |