In:
Science, American Association for the Advancement of Science (AAAS), Vol. 310, No. 5754 ( 2005-12-09), p. 1671-1674
Abstract:
The use of hafnium-tungsten chronometry to date the Moon is hampered by cosmogenic tungsten-182 production mainly by neutron capture of tantalum-181 at the lunar surface. We report tungsten isotope data for lunar metals, which contain no 181 Ta-derived cosmogenic 182 W. The data reveal differences in indigenous 182 W/ 184 W of lunar mantle reservoirs, indicating crystallization of the lunar magma ocean 4.527 ± 0.010 billion years ago. This age is consistent with the giant impact hypothesis and defines the completion of the major stage of Earth's accretion.
Type of Medium:
Online Resource
ISSN:
0036-8075
,
1095-9203
DOI:
10.1126/science.1118842
Language:
English
Publisher:
American Association for the Advancement of Science (AAAS)
Publication Date:
2005
detail.hit.zdb_id:
128410-1
detail.hit.zdb_id:
2066996-3
detail.hit.zdb_id:
2060783-0
SSG:
11
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