Study of Earth’s Heat Flux by Means of Geoneutrino Detection

Барабанов, И. Р.; Bezrukov, L.; Zavarzina, V. P.; Karpikov, I.; Kurlovich, A. S.; Лубсандоржиев, Б.; Mezhokh, A. K.; Morgalyuk, V. P.; Sinev, V. V.

doi:10.1134/s1063778819010034

Cited by 3 publications

(3 citation statements)

References 16 publications

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“…We have learned how to respond to the objections to Hydridic Earth model. The answers to the main objections are published in [7,8,9,10]. Here we note that the entire Earth could not have melt because the Hydridic Earth model contains a subsurface cooling mechanism that is activated when the subsurface is heated enough to decompose the metal hydrides.…”

Section: Reasons To Use the Hydridic Earth Modelmentioning

confidence: 93%

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On the contribution of the $^{40}$K geo-antineutrino to single Borexino events

Bezrukov,

Karpikov,

Kurlovich

et al. 2020

Preprint

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We propose to include in the analysis of Borexino single event energy spectrum the scattering of 40 K geo-antineutrinos by scintillator electrons. The Hydridic Earth model predicts the concentration of potassium in modern Earth from 1% to 4% of the Earth mass. We calculated contribution of 40 K geo-antineutrino interactions in single Borexino events for these concentrations. This contribution is comparable to the contribution from the interaction of CNO neutrinos. We discuss the reasons for using the Hydridic Earth model.

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Section: Reasons To Use the Hydridic Earth Modelmentioning

confidence: 93%

“…It is also noted in [7,8,9,10] that thermal conductivity is not the main mechanism of heat transfer in the Earth, but protons and hydrogen-containing gases carry out the heat away. In these works the experimental evidences are provided that the heat flux from Earth interior can reach the several hundreds TW.…”

Section: Reasons To Use the Hydridic Earth Modelmentioning

confidence: 99%

On the contribution of the $^{40}$K geo-antineutrino to single Borexino events

Bezrukov,

Karpikov,

Kurlovich

et al. 2020

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Therefore, in the Hydridic Earth model, the subsurface temperature oscillates [6] and not grows up till hydrides exist in the Earth. This argument was used in [10,11,12,13]. It is noted in these works that thermal conductivity is not the main mechanism of heat transfer in the Earth, but protons and hydrogen-containing gases carry out the heat away.…”

Section: Reasons To Use the Hydridic Earth Modelmentioning

confidence: 99%

On first detection of solar neutrinos from CNO cycle with Borexino

Bezrukov,

Karpikov,

Kurlovich

et al. 2020

Preprint

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Borexino collaboration reported about first measurement of solar CNO-ν interaction rate in Borexino detector. This result is consistent with Hydridic Earth model prediction about the contribution of 40 K geo-antineutrino interactions in single Borexino events. The potassium abundance in the Earth in the range 1 ÷ 1.5% of the Earth mass could give the observed enhancement of counting rate above expected CNO-ν counting rate. The Earth intrinsic heat flux must be in the range 200 ÷ 300 TW for this potassium abundance. This value of the heat flux can explain the ocean heating observed by the project ARGO. We consider that Hydridic Earth model actually corresponds better to CNO-ν Borexino results than Silicate Earth model. Introduction.Recently the Borexino collaboration [1] reported at Neutrino2020 the results of first detection of solar neutrinos from CNO cycle and published the arXiv [2]. They used of two types of analysis of experimental data: Counting Analysis (CA) and Multivariate fit (MF).We will use the following notations below. Differential energy spectrum of recoil electron counting rate:R ′ (E) = dR(E) dE .(1)

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Chemical Differentiation of Planets: A Core Issue

Toulhoat

Zgonnik²

2022

ApJ

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By plotting empirical chemical element abundances on Earth relative to the Sun and normalized to silicon versus their first ionization potentials, we confirm the existence of a correlation reported earlier. To explain this, we develop a model based on principles of statistical physics that predicts differentiated relative abundances for any planetary body in a solar system as a function of its orbital distance. This simple model is successfully tested against available chemical composition data from CI chondrites and surface compositional data of Mars, Earth, the Moon, Venus, and Mercury. We show, moreover, that deviations from the proposed law for a given planet correspond to later surface segregation of elements driven both by gravity and chemical reactions. We thus provide a new picture for the distribution of elements in the solar system and inside planets, with important consequences for their chemical composition. Particularly, a 4 wt% initial hydrogen content is predicted for bulk early Earth. This converges with other works suggesting that the interior of the Earth could be enriched with hydrogen.

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Study of Earth’s Heat Flux by Means of Geoneutrino Detection

Cited by 3 publications

References 16 publications

On the contribution of the $^{40}$K geo-antineutrino to single Borexino events

On the contribution of the $^{40}$K geo-antineutrino to single Borexino events

On first detection of solar neutrinos from CNO cycle with Borexino

Chemical Differentiation of Planets: A Core Issue

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