Knowledge of the crustal structure is the key for understanding physical and chemical conditions of its formation and later modification by geodynamic processes.It has long been recognized that crustal structure is co...Knowledge of the crustal structure is the key for understanding physical and chemical conditions of its formation and later modification by geodynamic processes.It has long been recognized that crustal structure is controlled by tectonic settings,and that the crustal thickness is one of the most important parameters that reflects the geodynamic origin of the crust.A long tectonic life of continental crust leads to its significant reworking by plate tectonics processes and crust-mantle interaction,which include mechanical extension.展开更多
Antarctica has traditionally been considered continental inside the coastline of ice and bedrock.In our recent study(Artemieva and Thybo,2020)we reconsider the conventional extent of this continent and demonstrate tha...Antarctica has traditionally been considered continental inside the coastline of ice and bedrock.In our recent study(Artemieva and Thybo,2020)we reconsider the conventional extent of this continent and demonstrate that 1/3 of Antarctica is not a continent.Here we present a brief summary of our results.展开更多
We present a new model for the density structure of the lithosphere mantle(LM)in the region that extends from the Atlantic coast of Eurasia to the Ural mountains and from northern Africa and Arabia to the Arctic shelf...We present a new model for the density structure of the lithosphere mantle(LM)in the region that extends from the Atlantic coast of Eurasia to the Ural mountains and from northern Africa and Arabia to the Arctic shelf(Artemieva and Shulgin,2019;Shulgin and Artemieva,2019).展开更多
An enigmatic feature of Precambrian continental lithosphere is its long-term stability,which depends on the degree of coupling between the crust and mantle since cratonisation.Earlier studies infer deformation of the ...An enigmatic feature of Precambrian continental lithosphere is its long-term stability,which depends on the degree of coupling between the crust and mantle since cratonisation.Earlier studies infer deformation of the lower lithosphere by mantle flow with fast direction of seismic anisotropy being parallel to present plate motion.展开更多
Geomicrobiology is a sub-discipline of geobiology and emphasizes the interaction between microorganisms and their environment on Earth. There is a need to explicitly emphasize the biogeochemical processes performed by...Geomicrobiology is a sub-discipline of geobiology and emphasizes the interaction between microorganisms and their environment on Earth. There is a need to explicitly emphasize the biogeochemical processes performed by microorganisms associated with Earth's tectonic activities, especially under the framework of the modern theory of plate tectonics. Tectonomicrobiology aims to create a better synergy between microbial and active tectonic processes. This explicit synergy should also foster better communications between solid Earth scientists and life scientists in terms of holistic Earth system dynamics at both tectonic and micro-scales.展开更多
文摘Knowledge of the crustal structure is the key for understanding physical and chemical conditions of its formation and later modification by geodynamic processes.It has long been recognized that crustal structure is controlled by tectonic settings,and that the crustal thickness is one of the most important parameters that reflects the geodynamic origin of the crust.A long tectonic life of continental crust leads to its significant reworking by plate tectonics processes and crust-mantle interaction,which include mechanical extension.
基金supported by grants FNU-1323-00053 to I.M.A.FNU-16/059776-15 to H.T.from the Danish Research Council
文摘Antarctica has traditionally been considered continental inside the coastline of ice and bedrock.In our recent study(Artemieva and Thybo,2020)we reconsider the conventional extent of this continent and demonstrate that 1/3 of Antarctica is not a continent.Here we present a brief summary of our results.
文摘We present a new model for the density structure of the lithosphere mantle(LM)in the region that extends from the Atlantic coast of Eurasia to the Ural mountains and from northern Africa and Arabia to the Arctic shelf(Artemieva and Shulgin,2019;Shulgin and Artemieva,2019).
基金supported by grants FNU10-083081 to IMA and FNU11-104254 to HT from the Danish Research Councilthe MOST funds for GPMR State Key Laboratory(CUG-Wuhan)(GPMR2019010)
文摘An enigmatic feature of Precambrian continental lithosphere is its long-term stability,which depends on the degree of coupling between the crust and mantle since cratonisation.Earlier studies infer deformation of the lower lithosphere by mantle flow with fast direction of seismic anisotropy being parallel to present plate motion.
基金supported by the National Natural Science Foundation of China(Grant Nos.41530105,41373072,91628301&U1606401)the Chinese Academy of Sciences(Grant Nos.Y4SL021001&QYZDY-SSW-DQC005)the Southern University of Science and Technology(Grant No.Y01316209)
文摘Geomicrobiology is a sub-discipline of geobiology and emphasizes the interaction between microorganisms and their environment on Earth. There is a need to explicitly emphasize the biogeochemical processes performed by microorganisms associated with Earth's tectonic activities, especially under the framework of the modern theory of plate tectonics. Tectonomicrobiology aims to create a better synergy between microbial and active tectonic processes. This explicit synergy should also foster better communications between solid Earth scientists and life scientists in terms of holistic Earth system dynamics at both tectonic and micro-scales.
