INTER-PLANETARY DUST - TRACE-ELEMENT ANALYSIS OF INDIVIDUAL PARTICLES BY NEUTRON-ACTIVATION

被引:26
作者
GANAPATHY, R [1 ]
BROWNLEE, DE [1 ]
机构
[1] UNIV WASHINGTON, DEPT ASTRON, SEATTLE, WA 98195 USA
关键词
D O I
10.1126/science.206.4422.1075
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Although micrometeorites of cometary origin are thought to be the dominant component of interplanetary dust, it has never been possible to positively identify such micrometer-sized particles. Two such particles have been identified as definitely micrometeorites since their abundances of volatile and nonvolatile trace elements closely match those of primitive solar system material. Copyright © 1979 AAAS.
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页码:1075 / 1077
页数:3
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