Consulta: creatorFacets:"Jokat, Wilfried"
Registros recuperados: 2
Data/hora: 09/06/2024 09:36:10

Advanced insights into magmatism and volcanism of the Mozambique Ridge and Mozambique Basin in the view of new potential field data
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Koenig, Matthias; Jokat, Wilfried.
P&gt;A new plate tectonic model is presented which describes the emplacement of the Mozambique Ridge off southeast Africa as the result of long lasting volcanic activity (140-122 Ma) during the initial opening between Africa and Antarctica. Thus, an oceanic origin for the Mozambique Ridge is proposed. This model is based on a new and systematic high resolution magnetic anomaly data set acquired across the Mozambique Ridge and throughout the Mozambique Basin. Data from the Mozambique Basin allow the identification of Mesozoic magnetic anomalies from M0r to M26 (124.61-155.3 Ma) with previously unmatched accuracy. Small-scale fracture zones are recognized by offsets of magnetic anomalies in the westernmost part of the basin. Additionally, a bend in the major...
Tipo: Text
Palavras-chave: Magnetic anomalies: modelling and interpretation; Marine magnetics and palaeomagnetics; Oceanic plateaus and microcontinents; Large igneous provinces; Africa; Antarctica.
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00231/34261/32626.pdf

Response of Cenozoic turbidite system to tectonic activity and sea-level change off the Zambezi Delta
Provedor de dados: Institutional Archive of Ifreme (ArchiMer)
Autores: Castelino, Jude A.; Reichert, Christian; Jokat, Wilfried.
Submarine fans and turbidite systems are important and sensitive features located offshore from river deltas that archive tectonic events, regional climate, sea level variations and erosional process. Very little is known about the sedimentary structure of the 1800 km long and 400 km wide Mozambique Fan, which is fed by the Zambezi and spreads out into the Mozambique Channel. New multichannel seismic profiles in the Mozambique Basin reveal multiple feeder systems of the upper fan that have been active concurrently or consecutively since Late Cretaceous. We identify two buried, ancient turbidite systems off Mozambique in addition to the previously known Zambezi-Channel system and another hypothesized active system. The oldest part of the upper fan, located...
Tipo: Text
Palavras-chave: Mozambique Fan; Turbidite systems; Late Cretaceous bottom current; Beira High Channel-levee system; African Uplift; Zambezi River.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00376/48698/49032.pdf