FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4308658441> ?p ?o ?g. }

• W4308658441 abstract "Carbon is an element that controls planetary habitability, and is fundamental for life on Earth. Its behaviour has important consequences for the global climate system, the origin and evolution of life on Earth. While the biosphere and atmosphere’s carbon cycle only accounts for less than 1% of the global carbon budget, hidden reservoirs of deep carbon in the Earth’s interior comprise the predominant storage of carbon on the planet. At the Earth’s surface, 60-70 % of carbon is hosted by carbonate minerals, which are then transported to the Earth’s interior, mainly in the form of sediments, by subduction of the oceanic lithosphere. Subducting plates are subjected to decarbonation, dehydration, and melting with CO2 release via supra-subduction volcanism. Nevertheless, part of the subducted carbonates’ may survive and be further transported to the deep mantle. Direct evidence of the existence of carbonates in the Earth’s interior, possibly reaching down to the lower mantle, comes from the finding of syngenetic inclusions of carbonates in diamonds and mantle xenoliths. The presence of carbonates in the deep Earth has a critical effect on the physical properties of the mantle. Melting and chemical speciation of the mantle are strongly affected by the form of C and carbonate stability. Therefore, the study of the stability and physical properties of carbonates at high pressures and temperatures is fundamental, because understanding the processes involved in the deep carbon cycle helps to improve our picture of the whole mantle. The systematic characterization of the elastic properties of carbonates as a function of their structure and chemical composition is of great importance because it may allow to identify their presence and distribution by seismology. Inverting seismic observations to successfully constrain the chemical composition and mineralogy of the Earth’s interior requires knowledge of the physical properties of all possible Earth’s materials at pressures and temperatures applicable to the Earth’s interior. Up to now, a multitude of studies has focused on the construction of phase diagrams and structural transitions by means of X-ray diffraction and vibrational spectroscopy experiments. Few studies are available on the complete elastic tensor of carbonates, however most of the datasets are not accompanied by an accurate characterization of the samples, which are often solid solutions and the exact chemical composition, density or the details about the experimental methods used are not presented. The aim of this thesis is to study the effect of chemical composition on the elastic properties of carbonates, providing a reliable dataset on the elasticity of the main carbonates. In particular, the elastic properties of crystalline aragonite, CaCO3, and Fe-dolomite, (Ca, Mg, Fe)(CO3)2, with different compositions were studied by Brillouin spectroscopy at ambient conditions. Brillouin spectroscopy was also used to investigate the elastic behaviour of amorphous calcium carbonate samples with different water contents (up to 18 wt%) at high pressures, up to 20 GPa. Furthermore, the importance of cationic substitution on the structure and high pressure behaviour of carbonates was investigated by studying a synthetic CaCO3-SrCO3 solid solution at ambient conditions and at high pressures, up to 10 GPa, by single crystal X-ray diffraction. Finally, the study of the effect of composition on the elastic properties of families of isostructural solids was also extended to a different class of materials, the metal guanidinium formates. The elasticity of a family of perovskite metal organic frameworks, metal guanidinium formates C(NH2)3MII(HCOO)3, with MII =Mn, Zn, Cu, Co, Cd and Ca was investigated by combining Brillouin spectroscopy, resonant ultrasound spectroscopy, density functional theory and thermal diffuse scattering analysis." @default.
• W4308658441 created "2022-11-13" @default.
• W4308658441 creator A5063663167 @default.
• W4308658441 date "2022-11-09" @default.
• W4308658441 modified "2023-10-14" @default.
• W4308658441 title "Elastic properties of carbonates" @default.
• W4308658441 doi "https://doi.org/10.21248/gups.70780" @default.
• W4308658441 hasPublicationYear "2022" @default.
• W4308658441 type Work @default.
• W4308658441 citedByCount "0" @default.
• W4308658441 crossrefType "dissertation" @default.
• W4308658441 hasAuthorship W4308658441A5063663167 @default.
• W4308658441 hasBestOaLocation W43086584411 @default.
• W4308658441 hasConcept C110872660 @default.
• W4308658441 hasConcept C119477230 @default.
• W4308658441 hasConcept C121332964 @default.
• W4308658441 hasConcept C127313418 @default.
• W4308658441 hasConcept C127636831 @default.
• W4308658441 hasConcept C141646446 @default.
• W4308658441 hasConcept C151730666 @default.
• W4308658441 hasConcept C154200439 @default.
• W4308658441 hasConcept C154912208 @default.
• W4308658441 hasConcept C16942324 @default.
• W4308658441 hasConcept C17409809 @default.
• W4308658441 hasConcept C18903297 @default.
• W4308658441 hasConcept C191897082 @default.
• W4308658441 hasConcept C192562407 @default.
• W4308658441 hasConcept C1965285 @default.
• W4308658441 hasConcept C2776744078 @default.
• W4308658441 hasConcept C2780659211 @default.
• W4308658441 hasConcept C58097730 @default.
• W4308658441 hasConcept C67236022 @default.
• W4308658441 hasConcept C6939412 @default.
• W4308658441 hasConcept C77928131 @default.
• W4308658441 hasConcept C8058405 @default.
• W4308658441 hasConcept C86803240 @default.
• W4308658441 hasConcept C87355193 @default.
• W4308658441 hasConceptScore W4308658441C110872660 @default.
• W4308658441 hasConceptScore W4308658441C119477230 @default.
• W4308658441 hasConceptScore W4308658441C121332964 @default.
• W4308658441 hasConceptScore W4308658441C127313418 @default.
• W4308658441 hasConceptScore W4308658441C127636831 @default.
• W4308658441 hasConceptScore W4308658441C141646446 @default.
• W4308658441 hasConceptScore W4308658441C151730666 @default.
• W4308658441 hasConceptScore W4308658441C154200439 @default.
• W4308658441 hasConceptScore W4308658441C154912208 @default.
• W4308658441 hasConceptScore W4308658441C16942324 @default.
• W4308658441 hasConceptScore W4308658441C17409809 @default.
• W4308658441 hasConceptScore W4308658441C18903297 @default.
• W4308658441 hasConceptScore W4308658441C191897082 @default.
• W4308658441 hasConceptScore W4308658441C192562407 @default.
• W4308658441 hasConceptScore W4308658441C1965285 @default.
• W4308658441 hasConceptScore W4308658441C2776744078 @default.
• W4308658441 hasConceptScore W4308658441C2780659211 @default.
• W4308658441 hasConceptScore W4308658441C58097730 @default.
• W4308658441 hasConceptScore W4308658441C67236022 @default.
• W4308658441 hasConceptScore W4308658441C6939412 @default.
• W4308658441 hasConceptScore W4308658441C77928131 @default.
• W4308658441 hasConceptScore W4308658441C8058405 @default.
• W4308658441 hasConceptScore W4308658441C86803240 @default.
• W4308658441 hasConceptScore W4308658441C87355193 @default.
• W4308658441 hasLocation W43086584411 @default.
• W4308658441 hasOpenAccess W4308658441 @default.
• W4308658441 hasPrimaryLocation W43086584411 @default.
• W4308658441 hasRelatedWork W1774150644 @default.
• W4308658441 hasRelatedWork W2050511819 @default.
• W4308658441 hasRelatedWork W2104708972 @default.
• W4308658441 hasRelatedWork W2903281299 @default.
• W4308658441 hasRelatedWork W2990386981 @default.
• W4308658441 hasRelatedWork W3121906292 @default.
• W4308658441 hasRelatedWork W3212890370 @default.
• W4308658441 hasRelatedWork W4221018406 @default.
• W4308658441 hasRelatedWork W4308658441 @default.
• W4308658441 hasRelatedWork W93469224 @default.
• W4308658441 isParatext "false" @default.
• W4308658441 isRetracted "false" @default.
• W4308658441 workType "dissertation" @default.