Source:http://linkedlifedata.com/resource/pubmed/id/17749421
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| Predicate | Object |
|---|---|
| rdf:type | |
| lifeskim:mentions | |
| pubmed:issue |
5052
|
| pubmed:dateCreated |
2010-6-8
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| pubmed:abstractText |
Whether many of the 10,000 meteorites collected in the Antarctic are unlike those failing elsewhere is contentious. The Antarctic H chondrites, one of the major classes of stony meteorites, include a number of individuals with higher induced thermoluminescence peak temperatures than observed among non-Antarctic H chondrites. The proportion of such individuals decreases with the mean terrestrial age of the meteorites at the various ice fields. These H chondrites have cosmic-ray exposure ages of about 8 million years, experienced little cosmic-ray shielding, and suffered rapid postmetamorphic cooling. Breakup of the H chondrite parent body, 8 million years ago, may have produced two types of material with different size distributions and thermal histories. The smaller objects reached Earth more rapidly through more rapid orbital evolution.
|
| pubmed:language |
eng
|
| pubmed:journal | |
| pubmed:status |
PubMed-not-MEDLINE
|
| pubmed:month |
Mar
|
| pubmed:issn |
0036-8075
|
| pubmed:author | |
| pubmed:issnType |
Print
|
| pubmed:day |
27
|
| pubmed:volume |
255
|
| pubmed:owner |
NLM
|
| pubmed:authorsComplete |
Y
|
| pubmed:pagination |
1685-7
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| pubmed:year |
1992
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| pubmed:articleTitle |
The breakup of a meteorite parent body and the delivery of meteorites to Earth.
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| pubmed:publicationType |
Journal Article
|