Annama H chondrite-Mineralogy, physical properties, cosmic ray exposure, and parent body history
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F17%3A00481022" target="_blank" >RIV/67985831:_____/17:00481022 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1111/maps.12871" target="_blank" >http://dx.doi.org/10.1111/maps.12871</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/maps.12871" target="_blank" >10.1111/maps.12871</a>
Alternative languages
Result language
angličtina
Original language name
Annama H chondrite-Mineralogy, physical properties, cosmic ray exposure, and parent body history
Original language description
The fall of the Annama meteorite occurred early morning (local time) on April 19, 2014 on the Kola Peninsula (Russia). Based on mineralogy and physical properties, Annama is a typical H chondrite. It has a high Ar-Ar age of 4.4 Ga. Its cosmic ray exposure history is atypical as it is not part of the large group of H chondrites with a prominent 7-8 Ma peak in the exposure age histograms. Instead, its exposure age is within uncertainty of a smaller peak at 30 +/- 4 Ma. The results from short-lived radionuclides are compatible with an atmospheric pre-entry radius of 30-40 cm. However, based on noble gas and cosmogenic radionuclide data, Annama must have been part of a larger body (radius >65 cm) for a large part of its cosmic ray exposure history. The 10Be concentration indicates a recent (3-5 Ma) breakup which may be responsible for the Annama parent body size reduction to 30-35 cm pre-entry radius.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Meteoritics & Planetary Science
ISSN
1086-9379
e-ISSN
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Volume of the periodical
52
Issue of the periodical within the volume
8
Country of publishing house
US - UNITED STATES
Number of pages
17
Pages from-to
1525-1541
UT code for WoS article
000406869300001
EID of the result in the Scopus database
2-s2.0-85026678259