Crustal thickness and Vp/Vs ratio in NW Namibia from receiver functions: Evidence for magmatic underplating due to mantle plume-crust interaction

Crustal thickness and Vp/Vs ratio in NW Namibia from receiver functions: Evidence for magmatic underplating due to mantle plume-crust interaction

A seismological network was operated at the junction of the aseismic Walvis Ridge with the northwestern Namibian coast. We mapped crustal thickness and bulk Vp/Vs ratio by the H‐k analysis of receiver functions. In the Damara Belt, the crustal thickness is ~35 km with a Vp/Vs ratio of

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Veröffentlicht in:Geophysical research letters 2015-05, Vol.42 (9), p.3330-3337
Hauptverfasser: Heit, Benjamin, Yuan, Xiaohui, Weber, Michael, Geissler, Wolfram, Jokat, Wilfried, Lushetile, Bufelo, Hoffmann, Karl-Heinz
Format: Artikel
Sprache:eng
Schlagworte:
Anomalies
Area
Breakup
Coasts
continental breakup
Crustal thickness
Lava
Magma
magmatic underplating
Mantle
Mantle plumes
Ratios
Seismology
Vp/Vs ratios
Walvis Ridge
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Zusammenfassung:A seismological network was operated at the junction of the aseismic Walvis Ridge with the northwestern Namibian coast. We mapped crustal thickness and bulk Vp/Vs ratio by the H‐k analysis of receiver functions. In the Damara Belt, the crustal thickness is ~35 km with a Vp/Vs ratio of
ISSN:0094-8276
1944-8007
DOI:10.1002/2015GL063704