Science. 1963 Mar 15;139(3559):1056-8. doi: 10.1126/science.139.3559.1056.
The rare-earth element content of three tektites has been determined by neutron activation analysis. The relative abundance patterns are all nearly alike and are identical to the pattern characteristic of well-differentiated terrestrial sediments. Possible consequences of finding this pattern in truly extraterrestrial matter are considered.
三种玻璃陨石的稀土元素含量已通过中子活化分析确定。相对丰度模式都非常相似，与良好分化的陆相沉积物的特征模式一致。考虑了在真正的天外物质中发现这种模式的可能后果。
