Shen, Tuo Xu, Xiwei Li, Yujiang Huang, Luyuan Rogozhin, E. A. Wang, Qixin Kang, Wenjun Lei, Xiaoqiong
Published in
Frontiers in Earth Science
Strain partitioning and accommodation are fundamental constraints to evaluate tectonic models of orogenic plateaus. The uplift mechanism issue of the eastern Tibetan Plateau has remained a long-term focus since the last century, namely, the steep uplift of the Longmen Shan area. Several tectonic models have been proposed to describe the uplift proc...
Adams, Aubreya
Published in
Frontiers in Earth Science
The Cameroon Volcanic Line (CVL) of west Africa poses many challenges to common models of mantle processes and volcanic system genesis. Although the CVL superficially resembles the hot-spot trace of a mantle plume, there is no evidence for age progression of initiation or cessation of volcanic activity, making the CVL one of several hot-lines obser...
Agard, Philippe Soret, Mathieu Bonnet, Guillaume Ninkabou, Dia Plunder, Alexis Prigent, Cécile Yamato, Philippe
Fragments of former oceans are commonly observed in mountain belts: blueschists and eclogites, on the one hand, and ophiolites, on the other hand, are all that remains of ancient oceanic lithosphere. Though volumetrically subordinate, they provide essential insights into past geodynamics and into the processes involved in the formation and destruct...
Adushkin, V. V. Goev, A. G. Sanina, I. A. Fedorov, A. V.
Published in
Doklady Earth Sciences
AbstractNew results are presented on the features of the deep velocity structure of two of the three main tectonic blocks that make up the Kola region—Murmansk and Belomorskii—by the P receiver function technique. The research is based on data from the broadband seismic stations Teriberka and Kovda. The results are compared with the models obtained...
Minakov, Alexander Gaina, Carmen
We explore the mantle density structure of the northeast Atlantic region using constrained linear inversion of the satellite gravity gradient data based on statistical prior information and assuming a Gaussian model. The uncertainty of the residual gravity gradient signal is characterized by a covariance matrix obtained using geostatistical analysi...
Shevtsov, A. N. Zhamaletdinov, A. A.
Published in
Izvestiya, Atmospheric and Oceanic Physics
AbstractWe consider methods for calculating the distribution of the temperature and rheological parameters (differential stresses) in the lithosphere using results of deep electromagnetic sounding in the Russian Arctic zone on the territory of the Kola–Karelian region. Temperature modeling is carried out under the assumption that, within the upper ...
Lobkovsky, L. I. Ramazanov, M. M.
Published in
Fluid Dynamics
Abstract—The problem of the development of thermomechanical waves in the system consisting of two horizontal layers with rheology of a linearly elastic medium for the upper layer (lithosphere) and a viscous fluid for the lower layer (asthenosphere) is considered with regard to phase transition on their common boundary. The exact solution to the pro...
Vinnik, L. P. Georgieva, G. D. Oreshin, S. I. Makeyeva, L. I. Dragomirov, D. N. Buchakchiev, V. D. Dimitrova, L. D.
Published in
Izvestiya, Physics of the Solid Earth
Abstract—Analysis of P- and S-receiver functions for 19 seismic stations on the Balkan Peninsula has been performed. Half of the stations are in Bulgaria. The crustal thickness varies from 28–30 to 50 km. The ratio of longitudinal and shear wave velocities in the upper crust reaches 2.0 in some places. In the southwest of the study area, the 410-km...
GAREL, Fanny Thoraval, Catherine
International audience
Chen, Lin
Published in
Frontiers in Earth Science
The continental lower crust is an important composition- and strength-jump layer in the lithosphere. Laboratory studies show its strength varies greatly due to a wide variety of composition. How the lower crust rheology influences the collisional orogeny remains poorly understood. Here I investigate the role of the lower crust rheology in the evolu...
