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利用仪器中子活化分析法、低水平r射线测定法和电子探针法,初步研究了宁强陨石的化学元素丰度、宇宙成因核素的含量以及少量单矿物化学组成。宁强陨石的难熔元素丰度相对于Cl的富集因子约为2,而一些易挥发元素显示不同程度的亏损。宁强陨石的元素丰度与阿仑德(Allende)陨石的丰度十分相似,意味着宁强陨石亦属CV群。根据测得的宁强陨石的[2]Al含量,估算出宁强陨石的宇宙线暴露年龄至少为3百万年。此外,用中子探针测定了从宁强陨石中挑出的13颗单矿物,其中有一颗熔为典型的富钙、铝包体,其难熔元素丰度相对于C1的平均富集因子为20—100。
By means of instrumental neutron activation analysis, low-level r-ray determination and electron probe method, the abundance of chemical elements, cosmic nuclide contents and a few single mineral chemical compositions of Ningqiang meteorites were preliminary studied. Ningqiang meteorites refractory element abundance relative to Cl enrichment factor of about 2, while some volatile elements show varying degrees of loss. The elemental abundance of Ningqiang meteorites is very similar to the abundance of Allende meteorites, meaning that the Ningqiang meteorites are also a CV group. Based on the measured [2] Al content of Ningqiang meteorites, it is estimated that the cosmic rays of Ningqiang meteorites have been exposed for at least 3 million years. In addition, 13 singular minerals singled out from Ningqiang meteorites were determined by using neutron probe. Among them, one of them is a typical calcium-rich and aluminum-encrusting body. Its refractory element abundance relative to the average enrichment factor of C1 20-100.