URANIUM DISTRIBUTION and “EXCESSIVE” U‐He AGES IN IRON METEORITIC TROILITE
作者:
David E. Fisher,
期刊:
Meteoritics
(WILEY Available online 1985)
卷期:
Volume 20,
issue 1
页码: 37-41
ISSN:0026-1114
年代: 1985
DOI:10.1111/j.1945-5100.1985.tb00844.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
Uranium was measured by fission track analysis in meteoritic troilite and graphite. The distribution is extremely heterogeneous, with a few high‐U grains dominating the total abundances. U/He ages cannot be estimated from such a distribution pattern, and therefore previously reported excessive ages are not vali
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