Central European Cenozoic plume volcanism with OIB characteristics and indications of a lower mantle source

1999 ◽  
Vol 136 (3) ◽  
pp. 225-239 ◽  
Author(s):  
K. Hans Wedepohl ◽  
Albrecht Baumann
Keyword(s):  
Mantle Source ◽  
Lower Mantle ◽  
Central European

A Lower Mantle Source for Central European Volcanism

Science ◽  
1999 ◽  
Vol 286 (5446) ◽  
pp. 1928-1931 ◽  
Author(s):  
S. Goes
Keyword(s):  
Mantle Source ◽  
Lower Mantle ◽  
Central European

A unique lower mantle source for Southern Italy volcanics

2007 ◽  
Vol 259 (3-4) ◽  
pp. 227-238 ◽  
Author(s):  
Anita Cadoux ◽  
Janne Blichert-Toft ◽  
Daniele L. Pinti ◽  
Francis Albarède
Keyword(s):  
Mantle Source ◽  
Lower Mantle ◽  
Southern Italy

scholarly journals Geochemical constraints on the structure of the Earth’s deep mantle and the origin of the LLSVPs

2021 ◽  
Author(s):  
Matthew Gleeson ◽  
Caroline Soderman ◽  
Simon Matthews ◽  
Sanne Cottaar ◽  
Sally Gibson
Keyword(s):  
Mantle Source ◽  
Lower Mantle ◽  
Source Region ◽  
Shear Velocity ◽  
Mantle Plumes ◽  
The North ◽  
Deep Mantle ◽  
The Pacific ◽  
Heterogeneous Mantle ◽  
Low Shear

Geophysical analysis of the Earth’s lower mantle has revealed the presence of two superstructures characterized by low shear wave velocities on the core-mantle boundary. These Large Low Shear Velocity Provinces (LLSVPs) play a crucial role in the dynamics of the lower mantle and act as the source region for deep-seated mantle plumes. However, their origin, and the characteristics of the surrounding deep mantle, remain enigmatic. Mantle plumes located above the margins of the LLSVPs display evidence for the presence of this deep-seated, thermally and/or chemically heterogeneous mantle material ascending into the melting region. As a result, analysis of the spatial geochemical heterogeneity in OIBs provides constraints on the structure of the Earth’s lower mantle and the origin of the LLSVPs. In this study, we focus on the Galápagos Archipelago in the eastern Pacific, where bilateral asymmetry in the radiogenic isotopic composition of erupted basalts has been linked to the presence of LLSVP material in the underlying plume. We show, using spatial variations in the major element contents of high-MgO basalts, that the isotopically enriched south-western region of the Galápagos mantle – assigned to melting of LLSVP material – displays no evidence for lithological heterogeneity in the mantle source. As such, it is unlikely that the Pacific LLSVP represents a pile of subducted oceanic crust. Clear evidence for a lithologically heterogeneous mantle source is, however, found in the north-central Galápagos, indicating that a recycled crustal component is present near the eastern margin of the Pacific LLSVP, consistent with seismic observations.

TBE in Croatia

2020 ◽  
Keyword(s):  
Tick Species ◽  
Limited Data ◽  
Notifiable Disease ◽  
Genetic Characteristics ◽  
Central European ◽  
Tick Borne Encephalitis ◽  
Tbe Virus ◽  
Endemic Areas ◽  
European Subtype

Even though tick-borne encephalitis (TBE) has been a notifiable disease in Croatia since 2007, there are no or only limited data available on the occurring tick species in the endemic areas, on the prevalence of TBE virus (TBEV) in ticks, its distribution in Croatia, and its genetic characteristics. Reporting of human cases also is very scarce. The Central European subtype of virus (TBEV-EU) appears to be present in Croatia

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