CSEM towed receiver data from Nyegga, CNE03 pockmark
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| Autores principales: | , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
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PANGAEA
2017
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| _version_ | 1867170075896709120 |
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| author | Attias, Eric Minshull, Tim A Jegen-Kulcsar, Marion Berndt, Christian |
| author_facet | Attias, Eric Minshull, Tim A Jegen-Kulcsar, Marion Berndt, Christian |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We present high-resolution resistivity imaging of gas hydrate pipe-like structures, as derived from marine controlled-source electromagnetic (CSEM) inversions that combine towed and ocean-bottom electric field receiver data, acquired from the Nyegga region, offshore Norway. Two-dimensional CSEM inversions applied to the towed receiver data detected four new prominent vertical resistive features that are likely gas hydrate structures, located in proximity to a major gas hydrate pipe-like structure, known as the CNE03 pockmark. The resistivity model resulting from the CSEM data inversion resolved the CNE03 hydrate structure in high resolution, as inferred by comparison to seismically constrained inversions. Our results indicate that shallow gas hydrate vertical features can be delineated effectively by inverting both ocean-bottom and towed receiver CSEM data simultaneously. The approach applied here can be utilised to map and monitor seafloor mineralisation, freshwater reservoirs, CO2 sequestration sites and near-surface geothermal systems. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_875644 |
| institution | PANGAEA |
| language | en |
| publishDate | 2017 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | CSEM towed receiver data from Nyegga, CNE03 pockmark Attias, Eric Minshull, Tim A Jegen-Kulcsar, Marion Berndt, Christian 64PE391; File content; File format; File name; File size; Nyegga_CNE03; Pelagia; Uniform resource locator/link to file We present high-resolution resistivity imaging of gas hydrate pipe-like structures, as derived from marine controlled-source electromagnetic (CSEM) inversions that combine towed and ocean-bottom electric field receiver data, acquired from the Nyegga region, offshore Norway. Two-dimensional CSEM inversions applied to the towed receiver data detected four new prominent vertical resistive features that are likely gas hydrate structures, located in proximity to a major gas hydrate pipe-like structure, known as the CNE03 pockmark. The resistivity model resulting from the CSEM data inversion resolved the CNE03 hydrate structure in high resolution, as inferred by comparison to seismically constrained inversions. Our results indicate that shallow gas hydrate vertical features can be delineated effectively by inverting both ocean-bottom and towed receiver CSEM data simultaneously. The approach applied here can be utilised to map and monitor seafloor mineralisation, freshwater reservoirs, CO2 sequestration sites and near-surface geothermal systems. |
| title | CSEM towed receiver data from Nyegga, CNE03 pockmark |
| topic | 64PE391; File content; File format; File name; File size; Nyegga_CNE03; Pelagia; Uniform resource locator/link to file |
| url | https://doi.org/10.1594/PANGAEA.875644 |