FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2289318345> ?p ?o ?g. }

• W2289318345 abstract "he two main sites of the upwelling in the earth mantle are the mid-ocean ridges and the intraplate hotspots, or oceanic islands. Due to different geochemical composition of the basalt in these two sites, we use two different abbreviated terms to describe the lava from these two environments: the MORB (Mid-Ocean Ridge Basalt) and the OIB (Ocean-Island Basalt). In general, geochemists believe that the MORBs come from the upwelling of the shallow convection cell within the upper reservoir, while the OIBs come from the upwelling of the deep-seated upwelling plumes from the lower reservoir. The main proof by which geochemists stand for their idea is: the MORBs are depleted in incompatible elements, such as uranium and thorium, while OIBs are relatively enriched in these elements. This gives a reasonable interpretation for different sources of these two basalts. Besides, the terrestrial heat flow studies also support this idea. The approximately 36 TW of mantle heat output could not be possibly achieved only by the MORB source material, for too few radioactive heat sources; the remainders are thought to be contributed by the deeper materials which are not sampled by the mid-ocean ridge, but instead, by the deep-seated plumes. Therefore, what would be the boundary of the upper and lower convection cells? Several possibilities are provided by geochemists. The 660-km discontinuity is believed to be the most promising boundary between these two reservoirs, for clear olivine phase change from spinel to perovskite and magnesowustite (γ→pv+mw). Recently, a 1600-km barrier was proposed by Kellogg et al. Numerical modeling of the thermochemical convection implies an intrinsically dense layer in the lower mantle, enriched in heat producing elements. The top of this layer ranges from ~1600 km to near CMB, often deflected by downwelling slabs, with plumes developing around local high spots (Fig. 1). Till now, the viewpoints of the geochemists seem clear. However, accompanied with the progress of computer hardware, geophysicians developed the technique of tomography in order to do the “body scanning” inside the earth’s depth. During the past two decades, plenty of interesting results have been published, within most of them are against the double layer convection hypothesis." @default.
• W2289318345 created "2016-06-24" @default.
• W2289318345 creator A5026822350 @default.
• W2289318345 date "2004-01-01" @default.
• W2289318345 modified "2023-09-27" @default.
• W2289318345 title "Single or double convection layers within the mantle? An alternative point of view" @default.
• W2289318345 cites W1588263366 @default.
• W2289318345 cites W1610525630 @default.
• W2289318345 cites W1677786893 @default.
• W2289318345 cites W1994010532 @default.
• W2289318345 cites W2026533755 @default.
• W2289318345 cites W2116944555 @default.
• W2289318345 cites W2141443242 @default.
• W2289318345 cites W2149834442 @default.
• W2289318345 hasPublicationYear "2004" @default.
• W2289318345 type Work @default.
• W2289318345 sameAs 2289318345 @default.
• W2289318345 citedByCount "0" @default.
• W2289318345 crossrefType "journal-article" @default.
• W2289318345 hasAuthorship W2289318345A5026822350 @default.
• W2289318345 hasConcept C111368507 @default.
• W2289318345 hasConcept C113754120 @default.
• W2289318345 hasConcept C120806208 @default.
• W2289318345 hasConcept C127313418 @default.
• W2289318345 hasConcept C149348798 @default.
• W2289318345 hasConcept C161509811 @default.
• W2289318345 hasConcept C17409809 @default.
• W2289318345 hasConcept C1965285 @default.
• W2289318345 hasConcept C51151373 @default.
• W2289318345 hasConcept C67236022 @default.
• W2289318345 hasConceptScore W2289318345C111368507 @default.
• W2289318345 hasConceptScore W2289318345C113754120 @default.
• W2289318345 hasConceptScore W2289318345C120806208 @default.
• W2289318345 hasConceptScore W2289318345C127313418 @default.
• W2289318345 hasConceptScore W2289318345C149348798 @default.
• W2289318345 hasConceptScore W2289318345C161509811 @default.
• W2289318345 hasConceptScore W2289318345C17409809 @default.
• W2289318345 hasConceptScore W2289318345C1965285 @default.
• W2289318345 hasConceptScore W2289318345C51151373 @default.
• W2289318345 hasConceptScore W2289318345C67236022 @default.
• W2289318345 hasLocation W22893183451 @default.
• W2289318345 hasOpenAccess W2289318345 @default.
• W2289318345 hasPrimaryLocation W22893183451 @default.
• W2289318345 hasRelatedWork W1976788449 @default.
• W2289318345 hasRelatedWork W1982327483 @default.
• W2289318345 hasRelatedWork W1998281753 @default.
• W2289318345 hasRelatedWork W2021740682 @default.
• W2289318345 hasRelatedWork W2022892224 @default.
• W2289318345 hasRelatedWork W2028153073 @default.
• W2289318345 hasRelatedWork W2032630833 @default.
• W2289318345 hasRelatedWork W2039882617 @default.
• W2289318345 hasRelatedWork W2056388296 @default.
• W2289318345 hasRelatedWork W2063777091 @default.
• W2289318345 hasRelatedWork W2076041878 @default.
• W2289318345 hasRelatedWork W2084528867 @default.
• W2289318345 hasRelatedWork W2127089938 @default.
• W2289318345 hasRelatedWork W2139296091 @default.
• W2289318345 hasRelatedWork W2139737137 @default.
• W2289318345 hasRelatedWork W2147703958 @default.
• W2289318345 hasRelatedWork W2261820790 @default.
• W2289318345 hasRelatedWork W2296728952 @default.
• W2289318345 hasRelatedWork W3042851475 @default.
• W2289318345 hasRelatedWork W2596469380 @default.
• W2289318345 isParatext "false" @default.
• W2289318345 isRetracted "false" @default.
• W2289318345 magId "2289318345" @default.
• W2289318345 workType "article" @default.