FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2080851938> ?p ?o ?g. }

• W2080851938 endingPage "15877" @default.
• W2080851938 startingPage "15877" @default.
• W2080851938 abstract "Numerical models of mantle convection that incorporate the major mantle phase changes of the transition zone reveal an inherently three-dimensional flow pattern, with cylindrical features and linear features that behave differently in their ability to penetrate the 670-km discontinuity. The dynamics are dominated by accumulation of cold linear downwellings into rounded pools above the endothermic phase change at 670 km depth, resulting in frequent “avalanches” of upper mantle material into the lower mantle. The effect of the exothermic phase transition at 400 km depth is to reduce the overall degree of layering by pushing material through the 670-km phase change, resulting in smaller and more frequent avalanches, and a wider range of morphologies. Large quantities of avalanched cold material accumulate above the coremantle boundary (CMB), resulting in a region of strongly depressed mean temperature at the base of the mantle. The 670-km phase change has a strong effect on the temperature field, with three-distinct regions being visible: (1) the upper mantle, containing linear downwellings and pools of cold material in the transition zone and characterized by a high amplitude long wavelength spectrum; (2) the midmantle, containing quasi-cylindrical avalanche conduits and characterized by a low amplitude, broad spectrum; and (3) the deep mantle, containing large pools of cold, avalanched material and characterized by a high amplitude, ultra-red (i.e., long wavelength) spectrum. The effect on the velocity field is very different. Flow penetration across the 670-km phase change is strongly wavelength-dependent, with easy penetration at long wavelengths but strong inhibition at short wavelengths. Thus, when comparing numerical models with long wavelength seismic tomography, diagnostics based on the density field, such as the radial correlation function, are much more sensitive to the effects of phase transitions than those based on the velocity field. The amplitude of the geoid is not significantly affected by the partial layering, because the contribution from the strong heterogeneity in the transition zone is almost perfectly balanced by the contribution from deflection of the 670-km discontinuity. Avalanches are associated with geoid lows. However, a more complex viscosity structure is required to correctly match the sign of the geoid over slabs in Earth." @default.
• W2080851938 created "2016-06-24" @default.
• W2080851938 creator A5007436013 @default.
• W2080851938 creator A5041406082 @default.
• W2080851938 creator A5042198445 @default.
• W2080851938 creator A5060893488 @default.
• W2080851938 date "1994-01-01" @default.
• W2080851938 modified "2023-10-14" @default.
• W2080851938 title "Effects of multiple phase transitions in a three-dimensional spherical model of convection in Earth's mantle" @default.
• W2080851938 cites W1496410283 @default.
• W2080851938 cites W1576903768 @default.
• W2080851938 cites W171378777 @default.
• W2080851938 cites W1965138041 @default.
• W2080851938 cites W1966424648 @default.
• W2080851938 cites W1967598321 @default.
• W2080851938 cites W1968875884 @default.
• W2080851938 cites W1969918539 @default.
• W2080851938 cites W1970390515 @default.
• W2080851938 cites W1971326714 @default.
• W2080851938 cites W1971680004 @default.
• W2080851938 cites W1973811075 @default.
• W2080851938 cites W1973866145 @default.
• W2080851938 cites W1978503021 @default.
• W2080851938 cites W1979893153 @default.
• W2080851938 cites W1980785735 @default.
• W2080851938 cites W1981859377 @default.
• W2080851938 cites W1982400079 @default.
• W2080851938 cites W1982461597 @default.
• W2080851938 cites W1991645292 @default.
• W2080851938 cites W1992361865 @default.
• W2080851938 cites W1992620384 @default.
• W2080851938 cites W2000181319 @default.
• W2080851938 cites W2002004285 @default.
• W2080851938 cites W2002209630 @default.
• W2080851938 cites W2008526841 @default.
• W2080851938 cites W2009574023 @default.
• W2080851938 cites W2010422258 @default.
• W2080851938 cites W2011497196 @default.
• W2080851938 cites W2013210818 @default.
• W2080851938 cites W2013553746 @default.
• W2080851938 cites W2015503578 @default.
• W2080851938 cites W2018637165 @default.
• W2080851938 cites W2019375842 @default.
• W2080851938 cites W2020968172 @default.
• W2080851938 cites W2021939671 @default.
• W2080851938 cites W2023401324 @default.
• W2080851938 cites W2023451840 @default.
• W2080851938 cites W2026436006 @default.
• W2080851938 cites W2027791091 @default.
• W2080851938 cites W2029084965 @default.
• W2080851938 cites W2029656757 @default.
• W2080851938 cites W2030092125 @default.
• W2080851938 cites W2031301776 @default.
• W2080851938 cites W2031570822 @default.
• W2080851938 cites W2031854576 @default.
• W2080851938 cites W2034881767 @default.
• W2080851938 cites W2041938589 @default.
• W2080851938 cites W2042256742 @default.
• W2080851938 cites W2046414257 @default.
• W2080851938 cites W2047378804 @default.
• W2080851938 cites W2051910146 @default.
• W2080851938 cites W2051983576 @default.
• W2080851938 cites W2054926125 @default.
• W2080851938 cites W2056884602 @default.
• W2080851938 cites W2057060201 @default.
• W2080851938 cites W2057307775 @default.
• W2080851938 cites W2058926689 @default.
• W2080851938 cites W2060373359 @default.
• W2080851938 cites W2062221814 @default.
• W2080851938 cites W2062252932 @default.
• W2080851938 cites W2063287321 @default.
• W2080851938 cites W2064131470 @default.
• W2080851938 cites W2071448755 @default.
• W2080851938 cites W2073622137 @default.
• W2080851938 cites W2074618243 @default.
• W2080851938 cites W2075653325 @default.
• W2080851938 cites W2076223423 @default.
• W2080851938 cites W2079260131 @default.
• W2080851938 cites W2080670662 @default.
• W2080851938 cites W2082578622 @default.
• W2080851938 cites W2085875759 @default.
• W2080851938 cites W2087983709 @default.
• W2080851938 cites W2088678792 @default.
• W2080851938 cites W2093599820 @default.
• W2080851938 cites W2097057956 @default.
• W2080851938 cites W2097114968 @default.
• W2080851938 cites W2100550992 @default.
• W2080851938 cites W2103188374 @default.
• W2080851938 cites W2104609735 @default.
• W2080851938 cites W2104806960 @default.
• W2080851938 cites W2107280101 @default.
• W2080851938 cites W2108653421 @default.
• W2080851938 cites W2109094119 @default.
• W2080851938 cites W2115532364 @default.
• W2080851938 cites W2116431852 @default.
• W2080851938 cites W2124816368 @default.
• W2080851938 cites W2132286805 @default.
• W2080851938 cites W2132767923 @default.

• next