Contents of P2O5 and REE in phosphorites from shelves and Pacific seamounts
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
1982
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| _version_ | 1867168559858188288 |
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| author | Tambiev, Sergey B Baturin, Gleb N |
| author_facet | Tambiev, Sergey B Baturin, Gleb N |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Recent phosphorites from the Namibian shelf are characterized by low REE contents, depletion in REE compared to host sediments and sharp deficiency of lanthanum and europium. In Late Quaternary and Pre-Quaternary phosphorites from ocean shelves REE contents and patterns in general are the same as in host sediments. Phosphorites from seamounts are enriched in REE compared to shelf phosphorites and their patterns are close to one of seawater. Behavior of REE in shelf phosphorites is determined by the fact that in early stages of phosphorite formation REE are associated not primarily with phosphate, but with organic matter and terrigenous impurities. Only in the later stages of diagenesis phosphate begins to play a leading role in concentration of REE. In metasomatic phosphorites on seamounts concentration of REE depends on age and depth of these rocks, i.e. it is determined by duration and conditions of contact with sea water. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_778166 |
| institution | PANGAEA |
| language | en |
| publishDate | 1982 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Contents of P2O5 and REE in phosphorites from shelves and Pacific seamounts Tambiev, Sergey B Baturin, Gleb N AK4-250; Akademik Kurchatov; AKU4; Archive of Ocean Data; ARCOD; Central Pacific; Central Pacific Seamounts, Pacific Ocean; Chile shelf; DM24-2046; DM24-2048; DM8; DM8-546; DM8-553; Dmitry Mendeleev; Dredge; DRG; Grab; GRAB; Marcus-Necker Ridge; Namibian shelf; Pacific Ocean; Peru shelf; VITYAZ; Vityaz (ex-Mars); Vityaz-43; Vityaz-48; VITYAZ6002-12-DR; VITYAZ6261-1; VITYAZ6343-DR; VITYAZ6348-1; VITYAZ6349; VITYAZ6352-DR; VITYAZ6364-7 Recent phosphorites from the Namibian shelf are characterized by low REE contents, depletion in REE compared to host sediments and sharp deficiency of lanthanum and europium. In Late Quaternary and Pre-Quaternary phosphorites from ocean shelves REE contents and patterns in general are the same as in host sediments. Phosphorites from seamounts are enriched in REE compared to shelf phosphorites and their patterns are close to one of seawater. Behavior of REE in shelf phosphorites is determined by the fact that in early stages of phosphorite formation REE are associated not primarily with phosphate, but with organic matter and terrigenous impurities. Only in the later stages of diagenesis phosphate begins to play a leading role in concentration of REE. In metasomatic phosphorites on seamounts concentration of REE depends on age and depth of these rocks, i.e. it is determined by duration and conditions of contact with sea water. |
| title | Contents of P2O5 and REE in phosphorites from shelves and Pacific seamounts |
| topic | AK4-250; Akademik Kurchatov; AKU4; Archive of Ocean Data; ARCOD; Central Pacific; Central Pacific Seamounts, Pacific Ocean; Chile shelf; DM24-2046; DM24-2048; DM8; DM8-546; DM8-553; Dmitry Mendeleev; Dredge; DRG; Grab; GRAB; Marcus-Necker Ridge; Namibian shelf; Pacific Ocean; Peru shelf; VITYAZ; Vityaz (ex-Mars); Vityaz-43; Vityaz-48; VITYAZ6002-12-DR; VITYAZ6261-1; VITYAZ6343-DR; VITYAZ6348-1; VITYAZ6349; VITYAZ6352-DR; VITYAZ6364-7 |
| url | https://doi.org/10.1594/PANGAEA.778166 |