Helium deposits form through the radioactive decay of uranium and thorium in crustal rocks
the verdict
SUPPORTED
the evidence backs this
confidence 81/100
Geological and geochemical studies consistently demonstrate that helium deposits commonly form through crustal processes, specifically the radiogenic accumulation of helium from the decay of radioactive elements like uranium and thorium in rocks.
Evidence for · 3
<sup>86</sup>Kr excess and other noble gases identify a billion-year-old radiogenically-enriched groundwater system.
2022 · cited by 7
Paper 2 identifies radiogenically-enriched groundwater systems where helium and other noble gases accumulate over long timescales in crustal basement rocks.
See more details
More for · 2
Origin and Key Enrichment Factors of Helium Resource in the Lower Yangtze Region, Eastern China.
2025 · cited by 1
Paper 6 establishes that regional helium enrichment is predominantly crustal in origin, deriving from ancient granitic basement source rocks undergoing radioactive decay.
Estimation of the depth of origin of fluids using noble gases in the surface sediments of submarine mud volcanoes off Tanegashima Island.
2023 · cited by 1
Paper 9 confirms through noble gas isotope ratios that helium found in various geological formations is primarily of crustal origin.