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| Main Authors: | , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2016
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.869574 |
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| _version_ | 1867169514042425344 |
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| author | Himmler, Tobias Bayon, Germain Wangner, David Johannes Enzmann, Frieder Peckmann, Jörn Bohrmann, Gerhard |
| author_facet | Himmler, Tobias Bayon, Germain Wangner, David Johannes Enzmann, Frieder Peckmann, Jörn Bohrmann, Gerhard |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Authigenic carbonate build-ups develop at seafloor methane-seeps, where microbially mediated sulphate-dependent anaerobic oxidation of methane facilitates carbonate precipitation. Despite being valuable recorders of past methane seepage events, their role as archives of atmospheric processes has not been examined. Here we show that cyclic sedimentation pulses related to the Indian monsoon in concert with authigenic precipitation of methane-derived aragonite gave rise to a well-laminated carbonate build-up within the oxygen minimum zone off Pakistan (northern Arabian Sea). U?Th dating indicates that the build-up grew during past ~1,130 years, creating an exceptional high-resolution archive of the Indian monsoon system. Monsoon-controlled formation of seep-carbonates extends the known environmental processes recorded by seep-carbonates, revealing a new relationship between atmospheric and seafloor processes. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_869574 |
| institution | PANGAEA |
| language | en |
| publishDate | 2016 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Limestone petrography and geochemical composition at ROV station GeoB12353-11 Himmler, Tobias Bayon, Germain Wangner, David Johannes Enzmann, Frieder Peckmann, Jörn Bohrmann, Gerhard Center for Marine Environmental Sciences; MARUM Authigenic carbonate build-ups develop at seafloor methane-seeps, where microbially mediated sulphate-dependent anaerobic oxidation of methane facilitates carbonate precipitation. Despite being valuable recorders of past methane seepage events, their role as archives of atmospheric processes has not been examined. Here we show that cyclic sedimentation pulses related to the Indian monsoon in concert with authigenic precipitation of methane-derived aragonite gave rise to a well-laminated carbonate build-up within the oxygen minimum zone off Pakistan (northern Arabian Sea). U?Th dating indicates that the build-up grew during past ~1,130 years, creating an exceptional high-resolution archive of the Indian monsoon system. Monsoon-controlled formation of seep-carbonates extends the known environmental processes recorded by seep-carbonates, revealing a new relationship between atmospheric and seafloor processes. |
| title | Limestone petrography and geochemical composition at ROV station GeoB12353-11 |
| topic | Center for Marine Environmental Sciences; MARUM |
| url | https://doi.org/10.1594/PANGAEA.869574 |