SILICATE SPHERULES FROM DEEP-SEA SEDIMENTS - CONFIRMATION OF EXTRATERRESTRIAL ORIGIN
SILICATE SPHERULES FROM DEEP-SEA SEDIMENTS - CONFIRMATION OF EXTRATERRESTRIAL ORIGIN
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DOI：
10.1126/science.201.4361.1119
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发表时间：
1978-01-01
期刊：
影响因子：
56.9
通讯作者：
HODGE, PW
中科院分区：
文献类型：
--
作者：
GANAPATHY, R;BROWNLEE, DE;HODGE, PW
陨石在大气中熔化产生的硅酸盐小球可能是地球上最常见的外星物质。尽管人们在世纪前就知道深海沉积物中存在着疑似来自地球外的硅酸盐球粒，但从未能够肯定地识别出这种颗粒。一个这样的小球已被确定为明确的外星人，因为它的非挥发性微量元素的丰度密切匹配的原始太阳系物质。
Silicate spherules produced by atmospheric melting of meteoric bodies are probably the most common form of extraterrestrial material on the earth. It has never been possible to positively identify such particles although it has been known for more than a century that silicate spherules of suspected extraterrestrial origin are present in deep-sea sediments. One such spherule has been identified as definitely extraterrestrial since its abundances of nonvolatile trace elements closely match those of primitive solar system material.