阿伦德陨石中壳层球粒的仪器及放射化学中子活化分析
INSTRUMENTAL AND RADIOCHEMICAL NEUTRON ACTIVATION ANALYSIS OF LAYERED CHONDRULES FROM ALLENDE METEORITE
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摘要: 本文中介绍了对阿伦德(Allende)陨石中4个壳层球粒的核部和壳部所做的仪器中子活化分析和放射化学中子活化分析工作,测定了8个(4对)样品的25个痕量元素。分析结果表明,元素在球粒核部和壳部具有不同的分布特征,这一结果为研究球粒的成因提供了进一步依据。Abstract: Samples of layered chondrules from allende meteorite are analysed by instrumental and radiochemical neutron activation analysis for Al,Au,Ca, Ce, Co,Cr,Dy,Eu, Fe; Gd, Ho, Ir, La, Lu, Mg, Mn, Na,Nd, Ni, Sc, Sm, Tb, Ti, V and Yb. The distribution and relative position of these elements in the rims and core of layered chondrule can provide some evidence for studying chondrule formation.