Viktor A. Radko's scientific contributions

Publications (3)

Data
This animated movie shows the evolution of the chemical composition of the mantle (content of the pyroxenitic/eclogitic component), in the model of the lithospheric destruction by the hot thermo-chemical plume. Model time in mln years is shown in the left corner.
Data
This animated movie shows the evolution of the potential temperature (°C) in the model of the lithospheric destruction by the hot thermo-chemical plume. Model time in mln years is shown in the left corner. The solid curve marks the boundary of the depleted lithosphere.
Article
Full-text available
Large igneous provinces (LIPs) are known for their rapid production of enormous volumes of magma (up to several million cubic kilometres in less than a million years), for marked thinning of the lithosphere, often ending with a continental break-up, and for their links to global environmental catastrophes. Despite the importance of LIPs, controvers...

Citations

... First, entrainment of deeply recycled subducted oceanic crust in the form of dense eclogite can result in higher density and thus lower compositional buoyancy in the plume material than in the surrounding peridotite (Sobolev et al., 2007). Consequently, less pronounced topographic uplift was predicted over such thermo-chemical plumes compared to their purely thermal counterparts (Sobolev et al., 2011). Second, water originating from stagnant slabs and stored in the upper-lower mantle transition zone (MTZ: 410-660 km; Helffrich and Wood, 2001) could give birth to hydrous plumes, positive chemical buoy-ancy anomalies that may rise to the Earth's surface even if the potential temperature of their source in the MTZ is within the range of the normal upper mantle temperature (Kuritani et al., 2011(Kuritani et al., , 2019. ...