FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2058367269> ?p ?o ?g. }

• W2058367269 endingPage "6733" @default.
• W2058367269 startingPage "6713" @default.
• W2058367269 abstract "Heterogeneities in the form of continuous (less common) or discontinuous (more common) mineralogical, geochemical and thermal gradients within volcanic deposits are ubiquitous in the geologic record. Examples cover a wide spectrum of eruptive volumes (10 −2 km 3 to > 10 3 km 3 ), compositions (felsic to mafic), mass discharges (10 3 to 10 9 kg/s) and eruptive styles (Plinian air falls, pyroclastic flows, lava flows). An understanding of the dynamics of the magma withdrawal process is essential for accurate reconstruction of pre‐emptive chemical and thermal fields within crustal magma bodies. A model based on numerical solution of the governing conservation equations has been devised in order to investigate the dynamics and systematics of central vent and ring fracture eruptions from flat‐roofed and sloped‐roof magma bodies strongly zoned in density and viscosity. Scale analysis of the conservation equations together with about 150 numerical experiments enables development of quantitative correlations for the mass discharge, , and the duration of mixed magma eruption, Δ t , with the effective driving pressure, σ. Natural eruptions span the entire range of dynamic regimes from viscous through inertial. For central vent eruptions in the viscous regime, is proportional to σ/( d η) where d is the conduit length and η is the viscosity. In the transitional and inertial regimes, the intensity varies as (σ/ρ) 3/5 and (σ/ρ) ½ , respectively, where ρ is the density. Similarly, Δ t depends on (σ/ d ) −5 , σ −3/5 and σ −½ in the viscous, transitional, and inertial regimes, respectively. For systems with layered viscosity structure, Δ t is nearly independent of the viscosity ratio. Pressures (above hydrostatic∥ needed to drive eruptions are proportional to , 5/3 , and 2 in the three dynamic regimes. Typical eruptions in the viscous and transitional regimes require pressure anomalies of order 10 2 )10 3 Pa whereas high intensity (inertial) eruptions demand anomalies of order 10 6 Pa. Because the lower values are less than or equal to maximum tidally induced stresses, Earth tides appear capable of exciting eruptions. Several scenarios for producing variable discharge during a single eruptive phase were also studied. These include arbitrary changes in the basal pressure and eruptions controlled by density and viscosity gradients. It is demonstrated quantitatively that compositional gaps and episodes of mixed‐magma eruption can originate due to the withdrawal process itself and are not necessarily related to pre‐eruptive gradients within the magma body." @default.
• W2058367269 created "2016-06-24" @default.
• W2058367269 creator A5009774519 @default.
• W2058367269 creator A5018699937 @default.
• W2058367269 creator A5034003498 @default.
• W2058367269 creator A5082113063 @default.
• W2058367269 date "1992-05-10" @default.
• W2058367269 modified "2023-09-27" @default.
• W2058367269 title "Simulations of magma withdrawal from compositionally zoned bodies" @default.
• W2058367269 cites W1964279737 @default.
• W2058367269 cites W1964680110 @default.
• W2058367269 cites W1967686959 @default.
• W2058367269 cites W1970027114 @default.
• W2058367269 cites W1982894812 @default.
• W2058367269 cites W1987780670 @default.
• W2058367269 cites W1987935155 @default.
• W2058367269 cites W1988813554 @default.
• W2058367269 cites W1989808213 @default.
• W2058367269 cites W1997550903 @default.
• W2058367269 cites W1999213588 @default.
• W2058367269 cites W2001795448 @default.
• W2058367269 cites W2001978862 @default.
• W2058367269 cites W2008455048 @default.
• W2058367269 cites W2011477542 @default.
• W2058367269 cites W2017384097 @default.
• W2058367269 cites W2023563727 @default.
• W2058367269 cites W2027022865 @default.
• W2058367269 cites W2027822199 @default.
• W2058367269 cites W2028694377 @default.
• W2058367269 cites W2033565367 @default.
• W2058367269 cites W2033968507 @default.
• W2058367269 cites W2036643521 @default.
• W2058367269 cites W2042888520 @default.
• W2058367269 cites W2046935420 @default.
• W2058367269 cites W2047262100 @default.
• W2058367269 cites W2053071492 @default.
• W2058367269 cites W2055384120 @default.
• W2058367269 cites W2056222688 @default.
• W2058367269 cites W2056813885 @default.
• W2058367269 cites W2057393007 @default.
• W2058367269 cites W2058533606 @default.
• W2058367269 cites W2059211005 @default.
• W2058367269 cites W2059313518 @default.
• W2058367269 cites W2068658370 @default.
• W2058367269 cites W2069653303 @default.
• W2058367269 cites W2072189481 @default.
• W2058367269 cites W2077406246 @default.
• W2058367269 cites W2080803297 @default.
• W2058367269 cites W2081910176 @default.
• W2058367269 cites W2081914553 @default.
• W2058367269 cites W2082389213 @default.
• W2058367269 cites W2087025012 @default.
• W2058367269 cites W2088942683 @default.
• W2058367269 cites W2089684068 @default.
• W2058367269 cites W2090693977 @default.
• W2058367269 cites W2104144529 @default.
• W2058367269 cites W2105788403 @default.
• W2058367269 cites W2124173937 @default.
• W2058367269 cites W2136278140 @default.
• W2058367269 cites W2141653242 @default.
• W2058367269 cites W2146682320 @default.
• W2058367269 cites W2246386557 @default.
• W2058367269 cites W2316671008 @default.
• W2058367269 cites W2319375221 @default.
• W2058367269 cites W2331271626 @default.
• W2058367269 cites W2343280464 @default.
• W2058367269 cites W2345520342 @default.
• W2058367269 cites W2563212924 @default.
• W2058367269 cites W32005467 @default.
• W2058367269 cites W4254338054 @default.
• W2058367269 cites W4300844655 @default.
• W2058367269 doi "https://doi.org/10.1029/91jb03130" @default.
• W2058367269 hasPublicationYear "1992" @default.
• W2058367269 type Work @default.
• W2058367269 sameAs 2058367269 @default.
• W2058367269 citedByCount "31" @default.
• W2058367269 countsByYear W20583672692013 @default.
• W2058367269 countsByYear W20583672692015 @default.
• W2058367269 countsByYear W20583672692020 @default.
• W2058367269 countsByYear W20583672692021 @default.
• W2058367269 crossrefType "journal-article" @default.
• W2058367269 hasAuthorship W2058367269A5009774519 @default.
• W2058367269 hasAuthorship W2058367269A5018699937 @default.
• W2058367269 hasAuthorship W2058367269A5034003498 @default.
• W2058367269 hasAuthorship W2058367269A5082113063 @default.
• W2058367269 hasConcept C113754120 @default.
• W2058367269 hasConcept C120806208 @default.
• W2058367269 hasConcept C121332964 @default.
• W2058367269 hasConcept C127172972 @default.
• W2058367269 hasConcept C127313418 @default.
• W2058367269 hasConcept C146348940 @default.
• W2058367269 hasConcept C167284885 @default.
• W2058367269 hasConcept C17409809 @default.
• W2058367269 hasConcept C183222429 @default.
• W2058367269 hasConcept C193429443 @default.
• W2058367269 hasConcept C53771952 @default.
• W2058367269 hasConcept C5900021 @default.
• W2058367269 hasConcept C8058405 @default.

• next