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pro vyhledávání: '"Stephen F. Daly"'
Autor:
Stephen F. Daly, Barry Parsons
Consideration is given to the relationship between the temperature structure of mantle convection and the resulting surface topography and gravity anomalies, which are used in its investigation. Integral expressions relating the three variables as a
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4fe17e45cbaef82a44683c7804315512
https://ora.ox.ac.uk/objects/uuid:28ea5899-9f4f-4747-a181-53b89592baa7
https://ora.ox.ac.uk/objects/uuid:28ea5899-9f4f-4747-a181-53b89592baa7
A simple model for mid-plate swells is that of convection in a fluid which has a low viscosity layer lying between a rigid bed and a constant viscosity region. Finite element calculations have been used to determine the effects of the viscosity contr
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https://explore.openaire.eu/search/publication?articleId=doi_dedup___::500d297af685acbf30c17dc072929185
https://ora.ox.ac.uk/objects/uuid:0ef1e6dc-d8de-4702-8ad0-85328c4b8dcd
https://ora.ox.ac.uk/objects/uuid:0ef1e6dc-d8de-4702-8ad0-85328c4b8dcd
Publikováno v:
Earth and Planetary Science Letters. 60:178-194
It is experimentally shown that, although steady convective flows are efficient means to heterogeneity within a single cell, they do not produce a dispersal of heterogeneous material over scales that are large by comparison to their depth, which requ
Autor:
Stephen F. Daly
Publikováno v:
Geophysical Research Letters. 7:841-844
The wavelength dependence of convection with a temperature-dependent viscosity is studied using two-dimensional finite difference models. A steady-state solution with a horizontal wavelength of eight times the depth is found to transport heat more ef
Autor:
A. Raefsky, Stephen F. Daly
Publikováno v:
Geophysical Journal International. 83:657-681
The ascent of a hot spherical body through a fluid with a strongly temperature-dependent viscosity has been studied using an axisymmetric finite element method. Numerical solutions range over Peclet numbers of 0.1 - 1000 from constant viscosity up to
Autor:
Frank M. Richter, Stephen F. Daly
Publikováno v:
Journal of Geophysical Research: Solid Earth. 83:4951-4956
A distinctive property of plate tectonics as a natural form of convection is the variety of large horizontal scales exhibited by the plates in contrast to the marked regularity of scale seen in other natural convecting systems and laboratory experime
Autor:
Frank M. Richter, Stephen F. Daly
Publikováno v:
Journal of Geophysical Research. 94:12499
The geochemical variability of mantle-derived melts in both trace element and isotope ratios is such as to require a chemically heterogeneous source. This raises the need to understand the dynamics of melt segregation from a heterogeneous source and
Publikováno v:
Journal of Fluid Mechanics. 129:173
It is pointed out that the understanding of convection in large-Prandtl-number Boussinesq fluids with uniform properties and contained in simple geometries is virtually complete. Present efforts are typically directed towards relaxing some of the ori