Matches in SemOpenAlex for { <https://semopenalex.org/work/W3158831270> ?p ?o ?g. }
Showing items 1 to 66 of
66
with 100 items per page.
- W3158831270 abstract "<p>The knowledge of the density structure of the lithospheric mantle is critical to our comprehension of tectonic and magmatic events occurring within the lithosphere and crucial to model the evolution of complex geodynamic processes (e.g., subduction dynamics, mantle plume upwelling etc). Furthermore, a thorough understanding of the density evolution at mantle conditions is essential to interpret geophysical data such as seismic tomography (e.g., Afonso et al., 2008; Stixrude and Lithgow-Bertelloni, 2012).</p><p>The density of mantle peridotites is related to chemical composition, modal abundance and elastic properties of their constituent minerals, which in turn are controlled by pressure, temperature and bulk composition of the system. Accordingly, the elastic properties of mantle minerals combined with the thermal state of the lithosphere can predict how the physical properties (e.g., density, elastic <em>moduli</em>) of mantle peridotites vary with depth. To this aim, (i) we examined the existing literature data (compressibility, thermal expansion and elasticity) suitable to constrain the elastic properties of peridotite minerals and (ii) we addressed the density structure of two potential lithospheric mantle sections (fertile and depleted) across different thermal regimes from the perspective of the Equations of State (EoS) of their constituent minerals.</p><p>In a mantle characterized by a relatively cold geotherm (45 mWm<sup>-2</sup>), the density of a depleted peridotitic system remains nearly constant up to about 4 GPa, while it moderately increases in a fertile system. In a mantle characterized by a relatively hot geotherm (60 mWm<sup>-2</sup>), the density of both depleted and fertile systems decreases up to about 3 GPa, due to the more rapid raise of temperature compared to pressure, and then it increases downwards.</p><p>These preliminary results show that the thermal state of the lithosphere produces a first-order signature in its density structure, with few differences owing to different modes and crystal chemical compositions.</p><p><strong>References</strong></p><p>Afonso, J.C., Fern&#224;ndez, M., Ranalli, G., Griffin, W.L., Connolly, J.A.D., 2008. Integrated geophysical-petrological modeling of the lithosphere and sublithospheric upper mantle: Methodology and applications. Geochemistry, Geophys. Geosystems 9, Q05008.</p><p>Stixrude, L., Lithgow-Bertelloni, C., 2012. Geophysics of Chemical Heterogeneity in the Mantle. Annu. Rev. Earth Planet. Sci. 40, 569&#8211;595.</p>" @default.
- W3158831270 created "2021-05-10" @default.
- W3158831270 creator A5012385705 @default.
- W3158831270 creator A5023698297 @default.
- W3158831270 creator A5028837700 @default.
- W3158831270 creator A5035029050 @default.
- W3158831270 creator A5036501268 @default.
- W3158831270 creator A5042105318 @default.
- W3158831270 date "2021-03-04" @default.
- W3158831270 modified "2023-09-27" @default.
- W3158831270 title "Density structure of the lithospheric mantle: upscaling from minerals to peridotites" @default.
- W3158831270 doi "https://doi.org/10.5194/egusphere-egu21-9565" @default.
- W3158831270 hasPublicationYear "2021" @default.
- W3158831270 type Work @default.
- W3158831270 sameAs 3158831270 @default.
- W3158831270 citedByCount "0" @default.
- W3158831270 crossrefType "posted-content" @default.
- W3158831270 hasAuthorship W3158831270A5012385705 @default.
- W3158831270 hasAuthorship W3158831270A5023698297 @default.
- W3158831270 hasAuthorship W3158831270A5028837700 @default.
- W3158831270 hasAuthorship W3158831270A5035029050 @default.
- W3158831270 hasAuthorship W3158831270A5036501268 @default.
- W3158831270 hasAuthorship W3158831270A5042105318 @default.
- W3158831270 hasConcept C127313418 @default.
- W3158831270 hasConcept C146481406 @default.
- W3158831270 hasConcept C163686574 @default.
- W3158831270 hasConcept C165205528 @default.
- W3158831270 hasConcept C16942324 @default.
- W3158831270 hasConcept C17409809 @default.
- W3158831270 hasConcept C190799397 @default.
- W3158831270 hasConcept C58097730 @default.
- W3158831270 hasConcept C5900021 @default.
- W3158831270 hasConcept C67236022 @default.
- W3158831270 hasConcept C77928131 @default.
- W3158831270 hasConcept C8058405 @default.
- W3158831270 hasConcept C84372278 @default.
- W3158831270 hasConceptScore W3158831270C127313418 @default.
- W3158831270 hasConceptScore W3158831270C146481406 @default.
- W3158831270 hasConceptScore W3158831270C163686574 @default.
- W3158831270 hasConceptScore W3158831270C165205528 @default.
- W3158831270 hasConceptScore W3158831270C16942324 @default.
- W3158831270 hasConceptScore W3158831270C17409809 @default.
- W3158831270 hasConceptScore W3158831270C190799397 @default.
- W3158831270 hasConceptScore W3158831270C58097730 @default.
- W3158831270 hasConceptScore W3158831270C5900021 @default.
- W3158831270 hasConceptScore W3158831270C67236022 @default.
- W3158831270 hasConceptScore W3158831270C77928131 @default.
- W3158831270 hasConceptScore W3158831270C8058405 @default.
- W3158831270 hasConceptScore W3158831270C84372278 @default.
- W3158831270 hasLocation W31588312701 @default.
- W3158831270 hasOpenAccess W3158831270 @default.
- W3158831270 hasPrimaryLocation W31588312701 @default.
- W3158831270 hasRelatedWork W21301187 @default.
- W3158831270 hasRelatedWork W28090133 @default.
- W3158831270 hasRelatedWork W333155 @default.
- W3158831270 hasRelatedWork W40854571 @default.
- W3158831270 hasRelatedWork W51853777 @default.
- W3158831270 hasRelatedWork W61649536 @default.
- W3158831270 hasRelatedWork W71393596 @default.
- W3158831270 hasRelatedWork W85407548 @default.
- W3158831270 hasRelatedWork W93469224 @default.
- W3158831270 hasRelatedWork W8483186 @default.
- W3158831270 isParatext "false" @default.
- W3158831270 isRetracted "false" @default.
- W3158831270 magId "3158831270" @default.
- W3158831270 workType "article" @default.