Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany
Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust a...
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Gespeichert in:
| Autor*in: |
Torsten Dahm [verfasserIn] Manfred Stiller [verfasserIn] James Mechie [verfasserIn] Sebastian Heimann [verfasserIn] Martin Hensch [verfasserIn] Heiko Woith [verfasserIn] Bernd Schmidt [verfasserIn] Gerald Gabriel [verfasserIn] Michael Weber [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Übergeordnetes Werk: |
In: Geochemistry, Geophysics, Geosystems ; 21(2020), 9, Seite n/a-n/a volume:21 ; year:2020 ; number:9 ; pages:n/a-n/a |
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| Links: |
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| DOI / URN: |
10.1029/2020GC009062 |
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DOAJ095374922 |
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| 520 | |a Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. | ||
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10.1029/2020GC009062 doi (DE-627)DOAJ095374922 (DE-599)DOAJ3c91357279504ad09874867dc12d6d36 DE-627 ger DE-627 rakwb eng QC801-809 QE1-996.5 Torsten Dahm verfasserin aut Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. magma reservoirs distributed volcanic fields reflection seismic crustal magma chamber deep low‐frequency earthquakes low velocity zone Geophysics. Cosmic physics Geology Manfred Stiller verfasserin aut James Mechie verfasserin aut Sebastian Heimann verfasserin aut Martin Hensch verfasserin aut Heiko Woith verfasserin aut Bernd Schmidt verfasserin aut Gerald Gabriel verfasserin aut Michael Weber verfasserin aut In Geochemistry, Geophysics, Geosystems 21(2020), 9, Seite n/a-n/a volume:21 year:2020 number:9 pages:n/a-n/a https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/article/3c91357279504ad09874867dc12d6d36 kostenfrei https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/toc/1525-2027 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 21 2020 9 n/a-n/a |
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10.1029/2020GC009062 doi (DE-627)DOAJ095374922 (DE-599)DOAJ3c91357279504ad09874867dc12d6d36 DE-627 ger DE-627 rakwb eng QC801-809 QE1-996.5 Torsten Dahm verfasserin aut Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. magma reservoirs distributed volcanic fields reflection seismic crustal magma chamber deep low‐frequency earthquakes low velocity zone Geophysics. Cosmic physics Geology Manfred Stiller verfasserin aut James Mechie verfasserin aut Sebastian Heimann verfasserin aut Martin Hensch verfasserin aut Heiko Woith verfasserin aut Bernd Schmidt verfasserin aut Gerald Gabriel verfasserin aut Michael Weber verfasserin aut In Geochemistry, Geophysics, Geosystems 21(2020), 9, Seite n/a-n/a volume:21 year:2020 number:9 pages:n/a-n/a https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/article/3c91357279504ad09874867dc12d6d36 kostenfrei https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/toc/1525-2027 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 21 2020 9 n/a-n/a |
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10.1029/2020GC009062 doi (DE-627)DOAJ095374922 (DE-599)DOAJ3c91357279504ad09874867dc12d6d36 DE-627 ger DE-627 rakwb eng QC801-809 QE1-996.5 Torsten Dahm verfasserin aut Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. magma reservoirs distributed volcanic fields reflection seismic crustal magma chamber deep low‐frequency earthquakes low velocity zone Geophysics. Cosmic physics Geology Manfred Stiller verfasserin aut James Mechie verfasserin aut Sebastian Heimann verfasserin aut Martin Hensch verfasserin aut Heiko Woith verfasserin aut Bernd Schmidt verfasserin aut Gerald Gabriel verfasserin aut Michael Weber verfasserin aut In Geochemistry, Geophysics, Geosystems 21(2020), 9, Seite n/a-n/a volume:21 year:2020 number:9 pages:n/a-n/a https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/article/3c91357279504ad09874867dc12d6d36 kostenfrei https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/toc/1525-2027 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 21 2020 9 n/a-n/a |
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10.1029/2020GC009062 doi (DE-627)DOAJ095374922 (DE-599)DOAJ3c91357279504ad09874867dc12d6d36 DE-627 ger DE-627 rakwb eng QC801-809 QE1-996.5 Torsten Dahm verfasserin aut Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. magma reservoirs distributed volcanic fields reflection seismic crustal magma chamber deep low‐frequency earthquakes low velocity zone Geophysics. Cosmic physics Geology Manfred Stiller verfasserin aut James Mechie verfasserin aut Sebastian Heimann verfasserin aut Martin Hensch verfasserin aut Heiko Woith verfasserin aut Bernd Schmidt verfasserin aut Gerald Gabriel verfasserin aut Michael Weber verfasserin aut In Geochemistry, Geophysics, Geosystems 21(2020), 9, Seite n/a-n/a volume:21 year:2020 number:9 pages:n/a-n/a https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/article/3c91357279504ad09874867dc12d6d36 kostenfrei https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/toc/1525-2027 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 21 2020 9 n/a-n/a |
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10.1029/2020GC009062 doi (DE-627)DOAJ095374922 (DE-599)DOAJ3c91357279504ad09874867dc12d6d36 DE-627 ger DE-627 rakwb eng QC801-809 QE1-996.5 Torsten Dahm verfasserin aut Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany 2020 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. magma reservoirs distributed volcanic fields reflection seismic crustal magma chamber deep low‐frequency earthquakes low velocity zone Geophysics. Cosmic physics Geology Manfred Stiller verfasserin aut James Mechie verfasserin aut Sebastian Heimann verfasserin aut Martin Hensch verfasserin aut Heiko Woith verfasserin aut Bernd Schmidt verfasserin aut Gerald Gabriel verfasserin aut Michael Weber verfasserin aut In Geochemistry, Geophysics, Geosystems 21(2020), 9, Seite n/a-n/a volume:21 year:2020 number:9 pages:n/a-n/a https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/article/3c91357279504ad09874867dc12d6d36 kostenfrei https://doi.org/10.1029/2020GC009062 kostenfrei https://doaj.org/toc/1525-2027 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ AR 21 2020 9 n/a-n/a |
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QC801-809 QE1-996.5 Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany magma reservoirs distributed volcanic fields reflection seismic crustal magma chamber deep low‐frequency earthquakes low velocity zone |
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seismological and geophysical signatures of the deep crustal magma systems of the cenozoic volcanic fields beneath the eifel, germany |
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Seismological and Geophysical Signatures of the Deep Crustal Magma Systems of the Cenozoic Volcanic Fields Beneath the Eifel, Germany |
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Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. |
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Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. |
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Abstract The Quaternary volcanic fields of the Eifel (Rhineland‐Palatinate, Germany) had their last eruptions less than 13,000 years ago. Recently, deep low‐frequency (DLF) earthquakes were detected beneath one of the volcanic fields showing evidence of ongoing magmatic activity in the lower crust and upper mantle. In this work, seismic wide‐ and steep‐angle experiments from 1978/1979 and 1987/1988 are compiled, partially reprocessed and interpreted, together with other data to better determine the location, size, shape, and state of magmatic reservoirs in the Eifel region near the crust‐mantle boundary. We discuss seismic evidence for a low‐velocity gradient layer from 30–36 km depth, which has developed over a large region under all Quaternary volcanic fields of the Rhenish Massif and can be explained by the presence of partial melts. We show that the DLF earthquakes connect the postulated upper mantle reservoir with the upper crust at a depth of about 8 km, directly below one of the youngest phonolitic volcanic centers in the Eifel, where CO2 originating from the mantle is massively outgassing. A bright spot in the West Eifel between 6 and 10 km depth represents a Tertiary magma reservoir and is seen as a model for a differentiated reservoir beneath the young phonolitic center today. We find that the distribution of volcanic fields is controlled by the Variscan lithospheric structures and terrane boundaries as a whole, which is reflected by an offset of the Moho depth, a wedge‐shaped transparent zone in the lower crust and the system of thrusts over about 120 km length. |
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