Geological processes concentrate high amounts of thorium on beaches in India.
the verdict
SUPPORTED
the evidence backs this
confidence 84/100
Geological studies of Indian coastal regions demonstrate that wave action and river transport concentrate heavy minerals like monazite, resulting in exceptionally high levels of thorium in beach sands.
Evidence for · 4
Geochemical characterization of monazite sands based on rare earth elements, thorium and uranium from a natural high background radiation area in Tamil Nadu, India.
2021 · cited by 30
This study confirms that the Kanyakumari coastal area in Tamil Nadu is a high background radiation area due to high concentrations of thorium-rich monazite in beach placer deposits.
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More for · 3
Heavy Mineral Placer Deposits of Ekakula Beach, Gahiramatha Coast, Orissa, India
1998 · cited by 12
This paper reports heavy mineral placer deposits including monazite containing thorium along the Orissa coast in India.
Rare Earth Elements Geochemistry and 234U/238U, 235U/238U Isotope Ratios of the Kanyakumari Beach Placer Deposits: Occurrence and Provenance
2023 · cited by 9
This research documents extreme enrichment of thorium and other light rare earth elements in the beach placer sands of Kanyakumari.
Textural and Chemical Characters of Lean Grade Placer Monazite of Bramhagiri Coast, Odisha, India
2023 · cited by 7
This study examines placer monazite sands derived from the Eastern Ghats and deposited along the Bramhagiri coast in Odisha, India, containing trace amounts of uranium and thorium.