Earth's composition: origin, evolution and energy budget

McDonough McDonough

doi:10.14862/geochemproc.72.0_250

Abstracts of Annual Meeting of the Geochemical Society of Japan

DOI https://doi.org/10.14862/geochemproc.72.0_250

Conference information

Host: Abstracts of Annual Meeting of the Geochemical Society of Japan

Name : Abstracts of Annual Meeting of the Geochemical Society of Japan

Number : 72

Date : September 07, 2025 - September 19, 2025

Earth's composition: origin, evolution and energy budget

*McDonough William

Author information

Keywords: geoneutrinos, bulk silicate Earth (BSE), heat producing elements, radiogenic power, chondrites

CONFERENCE PROCEEDINGS FREE ACCESS

Pages 250-

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Abstract

Earth's composition, its current form of mantle convection, and amount of radiogenic power driving its engine remain controversial topics. Earth's geoneutrino flux defines its radiogenic power and restricts its bulk composition. KamLAND and Borexino geoneutrino experiments affirm the Earth has approximately 20 TW of radiogenic power and sets the proportions of refractory lithophile elements in the bulk silicate Earth at 2.5 to 2.7 times that in CI chondrites.

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