The lunar sample (70017-291) has been examined using TL technique. Its natural TL glow curve has been established. The effective storage temperature and the sun
Amino acids have been separated from and identified in the Jilin meteorite No.Ⅰ and Ⅱ by gas-liquid chromatography. Eight kinds of amino acid, i.e., α-alanin
Physicochemical conditions of formation for wolframite, cassiterite and columbite and the principal factors which contribute to the Nb^-, Ta^- variation in wolf
Cosmogenic radioactive nuclides, particularly K^40, Mn^54 and Co^57 are measured in meteorites Nos. Ⅰ,Ⅱ and Ⅴ from the Kirin meteorite shower which is very s