陨石、超基性岩、花岗岩及其主矿物中某些微量元素的仪器中子活化分析

INSTRUMENTAL NEUTRON ACTIVATION ANALYSES ON METEORITES, ULTRABASIC ROCKS, GRANITES AND THEIR MAJOR MINERALS

研究地球物质中化学元素的分布、迁移和转变的规律，进一步探讨地球的形成与演化过程是地球化学的主要课题之一。球粒陨石的平均化学组成可能代表着形成太阳系的太阳星云的平均化学组成，也是组成地球的初始物质，而地壳上的各种岩浆岩都是从地球的初始物质经过熔融、调整、演化而逐渐形成的。我们通过对普通球粒陨石、超基性岩。

By use of high-resolution lithium-drifted germanium detectors, instrumental neutron activation analyses have been performed on 21 samples, including six ordinary chondrites, chondruls of two chondrites, one tektite, two ultrabasic rocks, five granites and five rock-forming minerals of the granites for their contents of Sc, Cr, Co, Rb, Cs, La, Ce, Eu, Sm, Tb, Yb, Lu, Hf, Ir, Au, Th and U.The experimental methods and the obtained results have also been reported in this paper, and the interference of the nuclides analyzed and corrected too.