Composition of organic matter from samples of massive sulfides, bottom sediments, and seawater collected within the Logachev and Broken Spur hydrothermal fields, Mid-Atlantic Ridge
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
1999
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| _version_ | 1867168557491552256 |
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| author | Peresypkin, Valery I Lein, Alla Yu Bogdanov, Yury A Bortnikov, Nikolay S |
| author_facet | Peresypkin, Valery I Lein, Alla Yu Bogdanov, Yury A Bortnikov, Nikolay S |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Lipid components of hydrothermal deposits from the unusual field at 14°45'N MAR and from the typical field at 29°N MAR were studied. For the first time mixed nature of organic matter (OM) from hydrothermal sulfide deposits was established with use of biochemical, gas chromatographic, and molecular methods of studies. In composition of OM lipids of phytoplankton, those of chemosynthesis bacteria and non-biogenic synthesis lipids were determined. Specific conditions of localization of sulfide deposits originated from ''black smokers'' (reducing conditions, absence of free oxygen, presence of reduced sulfur preventing OM from decomposition) let biogenic material, including bacterial one, be preserved in sulfide deposits. The hydrothermal system at 14°45'N MAR is characterized by geological, geochemical and thermodynamic conditions allowing abiogenic synthesis of methane and petroleum hydrocarbons. For sulfide deposits at 29°N and other active hydrothermal fields known at MAR, abiogenic synthesis of hydrocarbons occurs in lower scales. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_761011 |
| institution | PANGAEA |
| language | en |
| publishDate | 1999 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Composition of organic matter from samples of massive sulfides, bottom sediments, and seawater collected within the Logachev and Broken Spur hydrothermal fields, Mid-Atlantic Ridge Peresypkin, Valery I Lein, Alla Yu Bogdanov, Yury A Bortnikov, Nikolay S Akademik Mstislav Keldysh; AMK35; AMK35-3434; AMK35-3452; AMK35-3453; AMK35-3454; AMK39-MIR-BS; Archive of Ocean Data; ARCOD; GC; Gravity corer; Mid-Atlantic Ridge; MIR; MIR deep-sea manned submersible Lipid components of hydrothermal deposits from the unusual field at 14°45'N MAR and from the typical field at 29°N MAR were studied. For the first time mixed nature of organic matter (OM) from hydrothermal sulfide deposits was established with use of biochemical, gas chromatographic, and molecular methods of studies. In composition of OM lipids of phytoplankton, those of chemosynthesis bacteria and non-biogenic synthesis lipids were determined. Specific conditions of localization of sulfide deposits originated from ''black smokers'' (reducing conditions, absence of free oxygen, presence of reduced sulfur preventing OM from decomposition) let biogenic material, including bacterial one, be preserved in sulfide deposits. The hydrothermal system at 14°45'N MAR is characterized by geological, geochemical and thermodynamic conditions allowing abiogenic synthesis of methane and petroleum hydrocarbons. For sulfide deposits at 29°N and other active hydrothermal fields known at MAR, abiogenic synthesis of hydrocarbons occurs in lower scales. |
| title | Composition of organic matter from samples of massive sulfides, bottom sediments, and seawater collected within the Logachev and Broken Spur hydrothermal fields, Mid-Atlantic Ridge |
| topic | Akademik Mstislav Keldysh; AMK35; AMK35-3434; AMK35-3452; AMK35-3453; AMK35-3454; AMK39-MIR-BS; Archive of Ocean Data; ARCOD; GC; Gravity corer; Mid-Atlantic Ridge; MIR; MIR deep-sea manned submersible |
| url | https://doi.org/10.1594/PANGAEA.761011 |