【摘要】 <正> 吉林陨石的元素及金相分析已有不少研究,并获得了大量数据。我们利用14MeV中子活化分析陨石中的O,Si、Al、Fe、Mg等常量元素。 众所周知,用小型低能加速器获得14MeV中子的活化分析已获得广泛的应用,尤其对月岩、陨石、矿山地质样品的常量元素分析,显示出无损、快速、准确等优点。近几年来,由于高通量及密封中子管的发展,除了O、Si、Al、Fe、Mg等常量元素外,还可以分析地质样品中的半微量元素,例如:Na、Ni、Sr、Y、Zr、Nb、Ce、Er等。这对地质野外勘探和测伴生元素找矿提供了一个快速测量方法。更多还原

【Abstract】 The 14MeV neutron can successfully be used for activation analysis of samples from lunar and stony meteorites. The contents of O, Si, Fe, Al, Mg in chordrules from Jilin and Allendu’s meteorites have been measured elsewhere with other methods. In this paper, the major element analysis for Jilin and Allendu’s meteorites with 14MeV instrumental neutron activation is described briefly.The results obtained in this way are compared with the data from other methods and an accuracy of about 2-20% can be achieved by this method.更多还原