FE-57 MOSSBAUER-SPECTROSCOPY STUDIES OF METEORITES RECOVERED FROM ROOSEVELT COUNTY, USA

被引:2
|
作者
BERRY, FJ [1 ]
BLAND, PA [1 ]
OATES, G [1 ]
PILLINGER, CT [1 ]
机构
[1] OPEN UNIV, DEPT EARTH SCI, MILTON KEYNES MK7 6AA, BUCKS, ENGLAND
来源
HYPERFINE INTERACTIONS | 1994年 / 83卷 / 1-4期
关键词
D O I
10.1007/BF02074319
中图分类号
O64 [物理化学(理论化学)、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号
070203 ; 070304 ; 081704 ; 1406 ;
摘要
Some H5 ordinary chondrite meteorites recovered from the desert region of Roosevelt County in New Mexico, USA and C-14 dated to determine the terrestrial age have been examined by Fe-57 Mossbauer spectroscopy. The preliminary results suggest the increasing oxidation of Fe0 in the iron-nickel alloy phase and of Fe2+ in the iron-sulphide and -silicate phases as a result of terrestrial weathering over ca. 38 000 years and which induces the formation of macroscopic iron oxide/oxyhydroxide phases.
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页码:469 / 472
页数:4
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