scholarly journals Plate tectonics and convection in the Earth's mantle: toward a numerical simulation

2000 ◽  
Vol 2 (3) ◽  
pp. 22-33 ◽  
Author(s):  
L. Moresi ◽  
M. Gurnis ◽  
Shijie Zhong
Keyword(s):  
Numerical Simulation ◽  
Plate Tectonics ◽  
Earth’S Mantle

scholarly journals Constraining crustal silica on ancient Earth

2020 ◽  
Vol 117 (35) ◽  
pp. 21101-21107 ◽  
Author(s):  
C. Brenhin Keller ◽  
T. Mark Harrison
Keyword(s):  
Continental Crust ◽  
Plate Tectonics ◽  
Incompatible Element ◽  
Silica Content ◽  
Efficient Mechanism ◽  
Element Abundances ◽  
Terrigenous Sediments ◽  
Earth History ◽  
Crustal Composition ◽  
Earth’S Mantle

Accurately quantifying the composition of continental crust on Hadean and Archean Earth is critical to our understanding of the physiography, tectonics, and climate of our planet at the dawn of life. One longstanding paradigm involves the growth of a relatively mafic planetary crust over the first 1 to 2 billion years of Earth history, implying a lack of modern plate tectonics and a paucity of subaerial crust, and consequently lacking an efficient mechanism to regulate climate. Others have proposed a more uniformitarian view in which Archean and Hadean continents were only slightly more mafic than at present. Apart from complications in assessing early crustal composition introduced by crustal preservation and sampling biases, effects such as the secular cooling of Earth’s mantle and the biologically driven oxidation of Earth’s atmosphere have not been fully investigated. We find that the former complicates efforts to infer crustal silica from compatible or incompatible element abundances, while the latter undermines estimates of crustal silica content inferred from terrigenous sediments. Accounting for these complications, we find that the data are most parsimoniously explained by a model with nearly constant crustal silica since at least the early Archean.

scholarly journals GEODYNAMICS

GEODYNAMICS ◽  
2011 ◽  
Vol 2(11)2011 (2(11)) ◽  
pp. 315-316
Author(s):  
V. V. Furman ◽  
◽  
M. M. Khomiak ◽  
Keyword(s):  
Finite Element ◽  
Numerical Modelling ◽  
Thin Plate ◽  
Thermal Convection ◽  
Plate Tectonics ◽  
Driving Forces ◽  
Finite Element Approach ◽  
Earth’S Mantle ◽  
Elastic Thin Plate ◽  
Element Approach

Thermal convection in Earth’s mantle are driving forces of plate tectonics. Combine model –viscous uncompressed mantle and thermo-elastic thin plate – is developed. The finite element approach in numerical modelling of geodynamical processes is presented.

Convection in the earth's mantle: towards a numerical simulation

1974 ◽  
Vol 62 (03) ◽  
pp. 465 ◽  
Author(s):  
D. P. Mckenzie ◽  
J. M. Roberts ◽  
N. O. Weiss
Keyword(s):  
Numerical Simulation ◽  
Earth’S Mantle

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake
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