Earth's core heat is generated by radioactive decay and primordial heat
the verdict
SUPPORTED
the evidence backs this
confidence 83/100
Scientific consensus strongly supports the view that Earth's internal heat is sustained by a combination of primordial heat from accretion and radiogenic heat from the decay of radioactive isotopes.
Evidence for · 2
Quantifying Earth's radiogenic heat budget
2022 · cited by 20
Paper 2 discusses Earth's internal heat budget driven by both primordial and radiogenic sources.
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More for · 1
Radiogenic heating sustains long-lived volcanism and magnetic dynamos in super-Earths.
2024 · cited by 3
Paper 9 states that roughly half of the heat Earth loses is from radiogenic sources, alongside primordial heat contributions.