The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle
The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompress...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Fullea, Javier [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2015transfer abstract |
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| Schlagwörter: |
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| Umfang: |
18 |
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| Übergeordnetes Werk: |
Enthalten in: Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption - Kılıç Depren, Serpil ELSEVIER, 2022, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:409 ; year:2015 ; day:1 ; month:01 ; pages:71-88 ; extent:18 |
| Links: |
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| DOI / URN: |
10.1016/j.epsl.2014.10.038 |
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ELV023943904 |
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| 245 | 1 | 4 | |a The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle |
| 264 | 1 | |c 2015transfer abstract | |
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| 520 | |a The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. | ||
| 520 | |a The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. | ||
| 650 | 7 | |a Canary Islands |2 Elsevier | |
| 650 | 7 | |a mantle composition |2 Elsevier | |
| 650 | 7 | |a geophysical–petrological modelling |2 Elsevier | |
| 650 | 7 | |a seismic tomography |2 Elsevier | |
| 650 | 7 | |a mantle plume |2 Elsevier | |
| 650 | 7 | |a hot spot |2 Elsevier | |
| 700 | 1 | |a Camacho, Antonio G. |4 oth | |
| 700 | 1 | |a Negredo, Ana M. |4 oth | |
| 700 | 1 | |a Fernández, José |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Kılıç Depren, Serpil ELSEVIER |t Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption |d 2022 |g Amsterdam [u.a.] |w (DE-627)ELV008390509 |
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10.1016/j.epsl.2014.10.038 doi GBV00000000000197A.pica (DE-627)ELV023943904 (ELSEVIER)S0012-821X(14)00665-7 DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 333.7 VZ BIODIV DE-30 fid 42.90 bkl 42.11 bkl Fullea, Javier verfasserin aut The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. Canary Islands Elsevier mantle composition Elsevier geophysical–petrological modelling Elsevier seismic tomography Elsevier mantle plume Elsevier hot spot Elsevier Camacho, Antonio G. oth Negredo, Ana M. oth Fernández, José oth Enthalten in Elsevier Kılıç Depren, Serpil ELSEVIER Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption 2022 Amsterdam [u.a.] (DE-627)ELV008390509 volume:409 year:2015 day:1 month:01 pages:71-88 extent:18 https://doi.org/10.1016/j.epsl.2014.10.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.90 Ökologie: Allgemeines VZ 42.11 Biomathematik Biokybernetik VZ AR 409 2015 1 0101 71-88 18 045F 550 |
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10.1016/j.epsl.2014.10.038 doi GBV00000000000197A.pica (DE-627)ELV023943904 (ELSEVIER)S0012-821X(14)00665-7 DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 333.7 VZ BIODIV DE-30 fid 42.90 bkl 42.11 bkl Fullea, Javier verfasserin aut The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. Canary Islands Elsevier mantle composition Elsevier geophysical–petrological modelling Elsevier seismic tomography Elsevier mantle plume Elsevier hot spot Elsevier Camacho, Antonio G. oth Negredo, Ana M. oth Fernández, José oth Enthalten in Elsevier Kılıç Depren, Serpil ELSEVIER Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption 2022 Amsterdam [u.a.] (DE-627)ELV008390509 volume:409 year:2015 day:1 month:01 pages:71-88 extent:18 https://doi.org/10.1016/j.epsl.2014.10.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.90 Ökologie: Allgemeines VZ 42.11 Biomathematik Biokybernetik VZ AR 409 2015 1 0101 71-88 18 045F 550 |
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10.1016/j.epsl.2014.10.038 doi GBV00000000000197A.pica (DE-627)ELV023943904 (ELSEVIER)S0012-821X(14)00665-7 DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 333.7 VZ BIODIV DE-30 fid 42.90 bkl 42.11 bkl Fullea, Javier verfasserin aut The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. Canary Islands Elsevier mantle composition Elsevier geophysical–petrological modelling Elsevier seismic tomography Elsevier mantle plume Elsevier hot spot Elsevier Camacho, Antonio G. oth Negredo, Ana M. oth Fernández, José oth Enthalten in Elsevier Kılıç Depren, Serpil ELSEVIER Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption 2022 Amsterdam [u.a.] (DE-627)ELV008390509 volume:409 year:2015 day:1 month:01 pages:71-88 extent:18 https://doi.org/10.1016/j.epsl.2014.10.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.90 Ökologie: Allgemeines VZ 42.11 Biomathematik Biokybernetik VZ AR 409 2015 1 0101 71-88 18 045F 550 |
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10.1016/j.epsl.2014.10.038 doi GBV00000000000197A.pica (DE-627)ELV023943904 (ELSEVIER)S0012-821X(14)00665-7 DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 333.7 VZ BIODIV DE-30 fid 42.90 bkl 42.11 bkl Fullea, Javier verfasserin aut The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. Canary Islands Elsevier mantle composition Elsevier geophysical–petrological modelling Elsevier seismic tomography Elsevier mantle plume Elsevier hot spot Elsevier Camacho, Antonio G. oth Negredo, Ana M. oth Fernández, José oth Enthalten in Elsevier Kılıç Depren, Serpil ELSEVIER Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption 2022 Amsterdam [u.a.] (DE-627)ELV008390509 volume:409 year:2015 day:1 month:01 pages:71-88 extent:18 https://doi.org/10.1016/j.epsl.2014.10.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.90 Ökologie: Allgemeines VZ 42.11 Biomathematik Biokybernetik VZ AR 409 2015 1 0101 71-88 18 045F 550 |
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10.1016/j.epsl.2014.10.038 doi GBV00000000000197A.pica (DE-627)ELV023943904 (ELSEVIER)S0012-821X(14)00665-7 DE-627 ger DE-627 rakwb eng 550 550 DE-600 610 333.7 VZ BIODIV DE-30 fid 42.90 bkl 42.11 bkl Fullea, Javier verfasserin aut The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle 2015transfer abstract 18 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. Canary Islands Elsevier mantle composition Elsevier geophysical–petrological modelling Elsevier seismic tomography Elsevier mantle plume Elsevier hot spot Elsevier Camacho, Antonio G. oth Negredo, Ana M. oth Fernández, José oth Enthalten in Elsevier Kılıç Depren, Serpil ELSEVIER Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption 2022 Amsterdam [u.a.] (DE-627)ELV008390509 volume:409 year:2015 day:1 month:01 pages:71-88 extent:18 https://doi.org/10.1016/j.epsl.2014.10.038 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U FID-BIODIV SSG-OLC-PHA 42.90 Ökologie: Allgemeines VZ 42.11 Biomathematik Biokybernetik VZ AR 409 2015 1 0101 71-88 18 045F 550 |
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canary islands hot spot: new insights from 3d coupled geophysical–petrological modelling of the lithosphere and uppermost mantle |
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The Canary Islands hot spot: New insights from 3D coupled geophysical–petrological modelling of the lithosphere and uppermost mantle |
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The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. |
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The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. |
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The Canary archipelago (NW Atlantic African margin) is one of the best studied volcanic chains in the world yet its structure and geodynamic evolution are still under considerable debate. Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell. |
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Oceanic island volcanoes typically form over hot spots due to upwelling of plume material followed by decompression melting and melt migration up to the surface. Here, the 3D lithospheric-uppermost mantle thermochemical structure beneath the Canary Islands is studied using an integrated and self-consistent geophysical–petrological approach exploiting the wealth of available data after decades of geophysical and petrological studies plus recent satellite data. A precise knowledge of the present-day thermal and compositional mantle structure beneath the Canary Islands is a key element to understand the geodynamic evolution of the area and, on a global scale, the thermal state of the Earth's mantle beneath hot spots. Our results suggest a likely chemically depleted and mechanically strong lithosphere showing no significant thinning with respect to the surrounding oceanic and continental domains ( 110 ± 20 km thick). Models without a positive temperature anomaly in the sub-lithosphere (characterized by mantle T pot = 1335 ° C ) fail to reproduce the observed sub-lithospheric seismic anomaly over the Canary Islands. A thermal sub-lithospheric anomaly of + 100 ° C (mantle potential temperature of 1435 °C) with respect to ambient mantle beneath the Canaries is able to explain both observed seismic tomography anomalies and measured geophysical and geodetic data. Such a sub-lithospheric thermal anomaly requires a dynamic contribution of 150–400 m to the static topography to match the present-day observed elevation in the Canary Islands and associated swell.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Canary Islands</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">mantle composition</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">geophysical–petrological modelling</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">seismic tomography</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">mantle plume</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">hot spot</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Camacho, Antonio G.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Negredo, Ana M.</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Fernández, José</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier</subfield><subfield code="a">Kılıç Depren, Serpil ELSEVIER</subfield><subfield code="t">Energy consumption and environmental degradation nexus: A systematic review and meta-analysis of fossil fuel and renewable energy consumption</subfield><subfield code="d">2022</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV008390509</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:409</subfield><subfield code="g">year:2015</subfield><subfield code="g">day:1</subfield><subfield code="g">month:01</subfield><subfield code="g">pages:71-88</subfield><subfield code="g">extent:18</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.epsl.2014.10.038</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">FID-BIODIV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">42.90</subfield><subfield code="j">Ökologie: Allgemeines</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">42.11</subfield><subfield code="j">Biomathematik</subfield><subfield code="j">Biokybernetik</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">409</subfield><subfield code="j">2015</subfield><subfield code="b">1</subfield><subfield code="c">0101</subfield><subfield code="h">71-88</subfield><subfield code="g">18</subfield></datafield><datafield tag="953" ind1=" " ind2=" "><subfield code="2">045F</subfield><subfield code="a">550</subfield></datafield></record></collection>
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