Newtonian viscosity

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Journal Article
Published: 01 December 1990
American Mineralogist (1990) 75 (11-12): 1231-1237.
... melts exhibited Newtonian viscosities. The viscosities of the X 1/n n+ GaSi 3 O 8 liquids decrease in the order Cs >Rb >K >Na >Li and Ba >Sr >Ca. Increasing SiO 2 content in liquids on the SiO 2 -NaGaO 2 join (NaGaSiO 4 , NaGaSi 2 O 6 , NaGaSi 3 O 8 ) results in increasing viscosity...
Journal Article
Journal: Geophysics
Published: 01 August 1966
Geophysics (1966) 31 (4): 830-831.
... on the assumption of Newtonian viscosity must be considered void. Society of Exploration Geophysicists 1966 ...
Journal Article
Journal: Geophysics
Published: 01 November 2018
Geophysics (2018) 83 (6): MR345-MR352.
... variables. Nevertheless, we find that Cole-Cole spectra naturally arise from conventional mechanics with nonlinear internal friction (non-Newtonian viscosity). The Lagrangian mechanical formulation is applied to a finite body (a rock sample in a laboratory experiment) and a wave-propagating medium, in both...
Journal Article
Journal: Geophysics
Published: 02 February 2015
Geophysics (2015) 80 (2): A31-A37.
...Yanghua Wang ABSTRACT The Ricker wavelet is theoretically a solution of the Stokes differential equation, which takes into account the effect of Newtonian viscosity, and is applicable to seismic waves propagated through viscoelastic homogeneous media. In this paper, we defined the time-domain...
Series: Geological Society Special Publication
Published: 01 January 2001
DOI: 10.1144/GSL.SP.2001.184.01.02
EISBN: 9781862394322
... allowed the theory to be extended to quantify the stability of layers with non-Newtonian viscosity and vertically stratified density and viscosity variation. On geological timescales the continental lithospheric mantle may be viewed as an unstably stratified system of layers of viscous fluid...
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Journal Article
Published: 01 April 1981
American Mineralogist (1981) 66 (3-4): 334-345.
... assuming Newtonian viscosity for the minette magmas. The temperatures calculated for olivine–spinel equilibria confirm the low temperatures in the upper mantle of the Colorado Plateau inferred from hydrated lherzolites in nearby diatremes of serpentinized ultramafic microbreccia. Copyright © 1981...
Journal Article
Journal: Geology
Published: 01 September 2007
Geology (2007) 35 (9): 843-846.
... be used for high crystallinity and it does not consider the non-Newtonian strain-rate dependence of viscosity. We carried out parallel plate experiments on natural samples to simulate multiphase lava deformation under various stresses and strain rates. Multiphase lavas exhibit an important component...
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Book Chapter

Series: GSA Special Papers
Published: 01 January 1942
DOI: 10.1130/SPE36-p131
... 5. Effect of pressure upon viscosity 137 According to Newton’s law of fluid friction, the tangential or shearing stress in a liquid in motion is proportional to the rate of change, with time, of the angle of shear. Real liquids may be divided into two categories: “Newtonian...
Series: Geological Society, London, Special Publications
Published: 01 January 2003
DOI: 10.1144/GSL.SP.2003.216.01.04
EISBN: 9781862394643
... demonstrate that large localised initiating perturbations and inertial influence during flow both tend to cause a decrease in the wavelength of the resulting flow pattern and can, under certain circumstances, serve to promote a cuspate morphology. The use of a relatively low viscosity Newtonian fluid...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 2012
AAPG Bulletin (2012) 96 (1): 133-153.
..., however, the bitumen changes from a non-Newtonian fluid to a Newtonian fluid. At low temperatures, the viscosity variations can be divided into four stages. A standard viscosity called “zero-shear viscosity” is obtained from the viscosity variations and can be used throughout the reservoir...
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Journal Article
Published: 15 January 2010
Geological Magazine (2010) 147 (4): 497-507.
... for these diapirs, neglecting gravitational spreading and erosion/dissolution while assuming incompressible Newtonian rheology of the salt. Fitting known rates of extrusion at specific points in its elliptical cross-section, the dynamic viscosity of the salt of the Hormuz diapir is found to range between 10 18...
Series: GSA Memoirs
Published: 01 January 1966
DOI: 10.1130/MEM97-p291
... the poise and is used in the tables in this section. The unit of kinematic viscosity is the stokes; it is the viscosity in poises divided by the density in gm/cm 3 . Real liquids may be categorized as "Newtonian" or "viscous," and "non-Newtonian". The former show viscosities independent of rate of shear...
Effective <b>viscosity</b> of a <b>Newtonian</b> viscous fluid (<b>viscosity</b>       10    6  ...
in > Geophysics
Published: 10 June 2016
Figure 2. Effective viscosity of a Newtonian viscous fluid (viscosity 10 6    Pa ⋅   s ) containing a random distribution of spherical, Newtonian viscous inclusions (inclusion viscosities: ∞ , 10 7 , 10 5 , 0 Pa·s). The black curves are from equation
Journal Article
Published: 01 September 2016
Vadose Zone Journal (2016) 15 (9): vzj2015.06.0092.
... applied semi-empirical models like Darcy or Blake–Kozeny–Carmen and typically correlated the pressure drop in a sample to a homogenized cross-section using capillary bundle models of different complexities and by replacing the Newtonian viscosity with an effective viscosity ( Koponen et al., 1997...
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Journal Article
Published: 17 January 2012
Geological Magazine (2012) 149 (5): 819-826.
... retro-shear if the flow parameters change their magnitudes even though the same shear sense along the boundaries is maintained. * E-mail: soumyajitm@gmail.com simple shear shear zone shear sense Poiseuille flow viscosity extrusion Newtonian fluid Simple shear in ductile shear...
Journal Article
Published: 01 June 2011
European Journal of Mineralogy (2011) 23 (3): 303-322.
... elastoviscoplastic behavior based on the constitutive laws for GBS and CSP of the constituent phases. We emphasized the effects of inclusion shapes and interactions. We show that even at relatively low concentrations (25 vol%) and for overall Newtonian flow, the important strength contrasts and the interactions...
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Journal Article
Published: 01 June 1986
American Mineralogist (1986) 71 (5-6): 767-771.
...Christopher M. Scarfe; David J. Cronin Abstract The viscosities of six melt compositions have been measured along the join diopside-albite with a concentric-cylinder viscometer. Measurements were made between 1600 and 1150°C; viscosities were independent of shear rate, indicating Newtonian viscous...
Journal Article
Published: 01 December 1983
American Mineralogist (1983) 68 (11-12): 1083-1088.
... both above the liquidus and in the supercooled liquid region. Viscosities were independent of shear rate, indicating Newtonian viscous behavior for the melts. Viscosities decreased with increasing temperature and, at constant temperature, they decreased with increasing amounts of diopside component...
Computed complex shear modulus at 100 Hz for a <b>Newtonian</b> fluid (<b>viscosities</b>...
in > Geophysics
Published: 10 June 2016
Figure 3. Computed complex shear modulus at 100 Hz for a Newtonian fluid (viscosities of 10 4 , 10 6 , and 10 7    Pa ⋅ s ), containing a suspension of spherical elastic quartz particles. (a) Predictions of the PB model. (b) Comparison of PB, MT, and SC
Journal Article
Published: 01 February 1985
American Mineralogist (1985) 70 (1-2): 80-87.
..., jadeite and nepheline on the join NaAlO 2 –SiO 2 and two others off the join at 75 mole percent SiO 2 , one peralkaline and one peraluminous. All melt viscosities were independent of shear rate over two orders of magnitude, indicating Newtonian behavior. All viscosity–temperature relationships were...