London Geochronology Centre, Department of Earth Sciences,
University College London, Gower Street, London WC1E 6BT,
UK
Yuntao Tian
London Geochronology Centre, Department of Earth Sciences,
University College London, Gower Street, London WC1E 6BT,
UK
Guangdong Provincial Key Laboratory of
Geodynamics and Geohazards, School of Earth Sciences and Engineering,
Sun Yat-sen University, Guangzhou 510275, China
Jae Schwanethal
London Geochronology Centre, Department of Earth Sciences,
University College London, Gower Street, London WC1E 6BT,
UK
Yannick Buret
Department of Earth Sciences, Natural History Museum,
Cromwell Road, London SW7 5BD, UK
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The U–Th–He method is a technique to determine the cooling history of minerals. Traditional approaches to U–Th–He dating are time-consuming and require handling strong acids and radioactive solutions. This paper presents an alternative approach in which samples are irradiated with protons and subsequently analysed by laser ablation mass spectrometry. Unlike previous in situ U–Th–He dating attempts, the new method does not require any absolute concentration measurements of U, Th, or He.
The U–Th–He method is a technique to determine the cooling history of minerals. Traditional...
