Academic literature on the topic 'Primordial mantle'

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Journal articles on the topic "Primordial mantle"

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Zhang, Zhou, Susannah M. Dorfman, Jabrane Labidi, et al. "Primordial metallic melt in the deep mantle." Geophysical Research Letters 43, no. 8 (2016): 3693–99. http://dx.doi.org/10.1002/2016gl068560.

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Gülcher, Anna Johanna Pia, Maxim Dionys Ballmer, and Paul James Tackley. "Coupled dynamics and evolution of primordial and recycled heterogeneity in Earth's lower mantle." Solid Earth 12, no. 9 (2021): 2087–107. http://dx.doi.org/10.5194/se-12-2087-2021.

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Abstract. The nature of compositional heterogeneity in Earth's lower mantle remains a long-standing puzzle that can inform about the long-term thermochemical evolution and dynamics of our planet. Here, we use global-scale 2D models of thermochemical mantle convection to investigate the coupled evolution and mixing of (intrinsically dense) recycled and (intrinsically strong) primordial heterogeneity in the mantle. We explore the effects of ancient compositional layering of the mantle, as motivated by magma ocean solidification studies, and of the physical parameters of primordial material. Depe
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Hallis, Lydia J., Gary R. Huss, Kazuhide Nagashima, et al. "Evidence for primordial water in Earth’s deep mantle." Science 350, no. 6262 (2015): 795–97. http://dx.doi.org/10.1126/science.aac4834.

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Jackson, M. G., J. G. Konter, and T. W. Becker. "Primordial helium entrained by the hottest mantle plumes." Nature 542, no. 7641 (2017): 340–43. http://dx.doi.org/10.1038/nature21023.

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Ichikawa, Hiroki, Steeve Gréaux, and Shintaro Azuma. "Subduction of the primordial crust into the deep mantle." Geoscience Frontiers 8, no. 2 (2017): 347–54. http://dx.doi.org/10.1016/j.gsf.2016.08.003.

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Anderson, D. L. "Helium-3 from the Mantle: Primordial Signal or Cosmic Dust?" Science 261, no. 5118 (1993): 170–76. http://dx.doi.org/10.1126/science.261.5118.170.

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Lee, Cin-Ty A., Peter Luffi, Tobias Höink, Jie Li, Rajdeep Dasgupta, and John Hernlund. "Upside-down differentiation and generation of a ‘primordial’ lower mantle." Nature 463, no. 7283 (2010): 930–33. http://dx.doi.org/10.1038/nature08824.

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Strazzulla, G., G. A. Baratta, R. E. Johnson, and B. Donn. "Primordial comet mantle: Irradiation production of a stable organic crust." Icarus 91, no. 1 (1991): 101–4. http://dx.doi.org/10.1016/0019-1035(91)90129-h.

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Deng, Hongping, Maxim D. Ballmer, Christian Reinhardt, et al. "Primordial Earth Mantle Heterogeneity Caused by the Moon-forming Giant Impact?" Astrophysical Journal 887, no. 2 (2019): 211. http://dx.doi.org/10.3847/1538-4357/ab50b9.

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Boyet, Maud, Michael O. Garcia, Raphaël Pik, and Francis Albarède. "A search for142Nd evidence of primordial mantle heterogeneities in plume basalts." Geophysical Research Letters 32, no. 4 (2005): n/a. http://dx.doi.org/10.1029/2004gl021873.

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Dissertations / Theses on the topic "Primordial mantle"

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Withers, Anthony Charles. "Water in the mantle." Thesis, University of Bristol, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390105.

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Miller, William George Russell. "Carbon systematics of the Icelandic crust and mantle." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/275599.

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In recent decades there has been an increased interest in the carbon content of Earth’s geochemical reservoirs due to the impact of atmospheric carbon on the habitability of our planet. Earth’s interior likely hosts a greater mass of carbon than that of the oceans, atmosphere and crust combined, which has buffered the carbon content of the atmosphere over geological time. Yet only a few direct measurements of carbon from the upper mantle, and none from the lower mantle, have been made. Undegassed basalts erupted at mid-ocean ridges have previously been used to estimate the carbon content of th
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Clesi, Vincent. "Formation de la Terre et de Mars : étude expérimentale et numérique." Thesis, Clermont-Ferrand 2, 2016. http://www.theses.fr/2016CLF22750/document.

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La formation des noyaux planétaires métalliques est un évènement majeur pour l’évolution des propriétés physico-chimiques des planètes telluriques telles que nous les connaissons aujourd’hui. En effet, l’abondance des éléments sidérophiles (i.e. qui ont des affinités chimiques avec les phases métalliques) dans les manteaux planétaires s’explique par les conditions dans lesquelles se sont séparées les phases métalliques et silicatées. Au premier rang de ces conditions se trouvent la pression, la température et la fugacité d’oxygène. La distribution des éléments dans le noyau et le manteau ne pe
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Books on the topic "Primordial mantle"

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Trieloff, Mario. Noble Gases. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190647926.013.30.

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This is an advance summary of a forthcoming article in the Oxford Encyclopedia of Planetary Science. Please check back later for the full article.Although the second most abundant element in the cosmos is helium, noble gases are also called rare gases. The reason is that they are not abundant on terrestrial planets like our Earth, which is characterized by orders of magnitude depletion of—particularly light—noble gases when compared to the cosmic element abundance pattern. Indeed, such geochemical depletion and enrichment processes make noble gases so versatile concerning planetary formation a
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Book chapters on the topic "Primordial mantle"

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Solomatov, V. "Magma Oceans and Primordial Mantle Differentiation." In Treatise on Geophysics. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-444-53802-4.00155-x.

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SOLOMATOV, V. "Magma Oceans and Primordial Mantle Differentiation." In Treatise on Geophysics. Elsevier, 2007. http://dx.doi.org/10.1016/b978-044452748-6/00141-3.

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Solomatov, V. "Magma Oceans and Primordial Mantle Differentiation." In Treatise on Geophysics. Elsevier, 2007. http://dx.doi.org/10.1016/b978-044452748-6.00141-3.

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Lowrie, William. "6. The Earth’s heat." In Geophysics: A Very Short Introduction. Oxford University Press, 2018. http://dx.doi.org/10.1093/actrade/9780198792956.003.0006.

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The Earth’s internal heat is its greatest source of energy. It powers global geological processes such as plate tectonics and the generation of the geomagnetic field. ‘The Earth’s heat’ explains that the internal heat arises from two sources: the decay of radioactive isotopes in crustal rocks and the mantle, and primordial heat left over from the planet’s fiery formation. The internal heat has to find its way out of the Earth. The three basic forms of heat transfer are radiation, conduction, and convection. Heat is also transferred in compositional and phase transitions. Heat transport by conduction is most important in solid regions of the Earth, while thermal convection occurs in the viscoelastic mantle and molten outer core.
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Dalton, David R. "Flowers." In The Chemistry of Wine. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190687199.003.0020.

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Generally, grape vines produce extraneous shoots (“suckers”) on the plant in addition to those growing beyond the few desired on the cordon wanted for proper vine growth. Generally, again, suckers are less fertile than the primary shoots, they crowd the canopy of the vine, and their growth utilizes resources required for proper growth of the primary shoots. Further, the chaotic growth makes it difficult to manage the harvest. A crowded canopy (as will be discussed subsequently) is not a healthy one for grape growth. As shown in Figures 12.1 and 12.2 and noted earlier, buds (the small part of the vine that lies between the vine’s stem and the leaf stem or petiole) can start alongside the beginning of leaves at the base of the apical meristem. The buds swell and eventually produce shoots. As the shoot grows the flowers appear on a stem from the node, from where leaves have also sprung. That is, grape nodes hold buds that grow into leaves and inflorescences or “clusters of flowers” (i.e., the reproductive portion of a plant) arranged on a smaller stem growing from the node. It is not yet clear, despite recognizing the flow of nutrients and auxins as well as changes in proteins, how, after vernalization (i.e., the ability to flower so that fruit can be set—but only after exposure cold), the plant decides which, leaf or stem bearing flowers, should sprout from the node. The fundamentals of the coming forth of the buds are often outlined as a three-step process. First there is the formation of uncommitted primordia (primordia refer to tissues in their earliest recognizable stages of development) called “anlagen” (from German, in English, “assets” or “facilities”) at the apices of lateral buds. Second, differentiation of anlagen to form inflorescence primordia or tendril primordia occurs. Finally, flowers form from the inflorescence primordia when activated by phytohormones, nutrients, and growth regulators and when the external conditions of light and temperature are correct.
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Andrews, Pierre, and Silvia Quarteroni. "Extending Conversational Agents for Task-Oriented Human-Computer Dialogue." In Conversational Agents and Natural Language Interaction. IGI Global, 2011. http://dx.doi.org/10.4018/978-1-60960-617-6.ch008.

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We present the role of conversational agents in two task-oriented human-computer dialogue applications: Interactive Question Answering and Persuasive Dialogue. We show that conversational agents can be effectively deployed for interaction that goes beyond user entertainment and can be successfully used as a means to achieve complex tasks. Conversational agents are a winning solution in Persuasive Dialogue because, combined with a planning infrastructure, they can help manage the parts of the dialogue that cannot be planned a priori and are primordial to keep the system persuasive. In Interactive Question Answering, conversational approaches lead users to the explicit formulation of queries, allow for the submission of further queries and accomodate related queries thanks to their ability to handle context.
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Monteiro, Jaylson, Nireide Tavares, Sara da Veiga, et al. "Carta Arqueológica da Cidade Velha: Uma primeira abordagem." In Arqueologia em Portugal 2020 - Estado da Questão - Textos. Associação dos Arqueólogos Portugueses e CITCEM, 2020. http://dx.doi.org/10.21747/978-989-8970-25-1/arqa22.

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The knowledge of cultural heritage in a specific region is a basic element for the development of actions and skills necessary to save and manage. The historic set of Cidade Velha, classified as a World Heritage Site, still preserves traces that allow its conservation. In this sense, a first approach to the Archaeological Map of Cidade Velha is presented, with the identification and inventory of all vestiges, within the protected area of the site, which encompasses the Ribeira Grande valley and the historic center, and represents mainly as primordial populated areas, and urban expansion in the 16th and 17th centuries. The vestiges identified are authentic testimonies of cultural diversity that characterize a historic trajectory of the Cidade Velha.
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Conference papers on the topic "Primordial mantle"

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Shearer, Charles K., and Kent C. Condie. "PRIMORDIAL FRACTIONATION OF HIGH FIELD STRENGTH ELEMENTS (HFSE) ON STAGNANT-LID PLANET MANTLES." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-301328.

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Santos, Mateus, and Daniel Marcon. "Pesquisa experimental sobre Ataques Cibernéticos em serviços de infraestruturas de nuvens públicas baseadas em Microsoft Azure." In XVII Escola Regional de Redes de Computadores. Sociedade Brasileira de Computação - SBC, 2019. http://dx.doi.org/10.5753/errc.2019.9227.

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Para manter a perpetuidade de seus negócios, as corporações estão transformando-os para o modelo digital. Como consequência dessas mudanças, a infraestrutura de tecnologia da informação (TI) precisa mudar os paradigmas obsoletos e adotar soluções que assegurem elasticidade para crescimento, alta disponibilidade e segurança para suportar os novos modelos de negócios. Dentro desse contexto, a infraestrutura em nuvem se tornou um modelo primordial para atender às necessidades do negócio e também da TI. Assim como outras tecnologias disruptivas, a infraestrutura em nuvem também possui consideraçõe
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de Lima, Isadora Soares, and Ivanise Correia da Silva Mota. "DIAGNÓSTICO LABORATORIAL DA DOENÇA DE ALZEIMER E SEUS REGISTROS HISTÓRICOS." In I Congresso Brasileiro de Bioquímica Humana On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems/659.

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Introdução: A Doença de Alzheimer (DA) é um distúrbio neurodegenerativo caracterizado por demência, a qual o indivíduo apresenta perda da memória recente, interferências cognitivas e nas atividades cotidianas. Desde sua descoberta em 1906 por Alöis Alzheimer, seu diagnóstico se manteve diretivo às manifestações clínicas, contudo, hoje, se acresce avaliações e interações com outras doenças, interferências ambientais, bioquímicas, genéticas e epigenéticas. A identificação da DA é realizada pela detecção de acúmulos de placas β amiloide e depósitos intraneuronais de emaranhados neurofibrilares, q
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De Lima, Isadora Soares, and Ivanise Correia da Silva Mota. "DIAGNÓSTICO LABORATORIAL DA DOENÇA DE ALZEIMER E SEUS REGISTROS HISTÓRICOS." In I Congresso Brasileiro de Bioquímica Humana On-line. Revista Multidisciplinar em Saúde, 2021. http://dx.doi.org/10.51161/rems.833.

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Introdução: A Doença de Alzheimer (DA) é um distúrbio neurodegenerativo caracterizado por demência, a qual o indivíduo apresenta perda da memória recente, interferências cognitivas e nas atividades cotidianas. Desde sua descoberta em 1906 por Alöis Alzheimer, seu diagnóstico se manteve diretivo às manifestações clínicas, contudo, hoje, se acresce avaliações e interações com outras doenças, interferências ambientais, bioquímicas, genéticas e epigenéticas. A identificação da DA é realizada pela detecção de acúmulos de placas β amiloide e depósitos intraneuronais de emaranhados neurofibrilares, q
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