| 38838 |
Creator |
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| 38838 |
Creator |
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| 38838 |
Creator |
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| 38838 |
Creator |
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| 38838 |
Creator |
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| 38838 |
Creator |
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| 38838 |
Creator |
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| 38838 |
Creator |
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| 38838 |
Creator |
ext-edc28f341a7cab3c179bc78b85a3aebd |
| 38838 |
Date |
2013-07 |
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Is Part Of |
repository |
| 38838 |
Is Part Of |
p15561968 |
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abstract |
The spectacular arrival of a huge meteorite in central Siberia on February 15th 2013
was the largest event of its kind for more than a hundred years. Oxygen isotope analysis
reveals the object involved was an ordinary chondrite of type LL. Petrological examination
of the material analysed shows two main lithologies, metamorphic grade 5, were present
both having veins of shock produced glass. All three types of material were investigated
for carbon, nitrogen and noble gas content and isotopic compositions. The relatively
low abundance of carbon and nitrogen indicate that Chelyabinsk is uncontaminated by
comparison with other samples in meteorite collections so that indigenous components
may be recognized. All the samples studied contained minimal amounts of cosmogenic
and primordial noble gases, evidence that the pre-atmospheric size of the object was
large, greater than two metres in diameter and that the explosion and break-up was
accompanied by catastrophic degassing. The implications for other major meteorite
falls and the Tunguska event are discussed. |
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authorList |
authors |
| 38838 |
issue |
7 |
| 38838 |
status |
peerReviewed |
| 38838 |
volume |
51 |
| 38838 |
type |
AcademicArticle |
| 38838 |
type |
Article |
| 38838 |
label |
Pillinger, C. T. ; Greenwood, R. C. ; Johnson, D. ; Gibson, J. M. ; Tindle, A. G.
; Verchovsky, A. B. ; Buikin, A. I.; Franchi, I. A. and Grady, M. M. (2013). Light
element geochemistry of the Chelyabinsk meteorite. Geochemistry International, 51(7)
pp. 540–548. |
| 38838 |
label |
Pillinger, C. T. ; Greenwood, R. C. ; Johnson, D. ; Gibson, J. M. ; Tindle, A.
G. ; Verchovsky, A. B. ; Buikin, A. I.; Franchi, I. A. and Grady, M. M. (2013).
Light element geochemistry of the Chelyabinsk meteorite. Geochemistry International,
51(7) pp. 540–548. |
| 38838 |
Title |
Light element geochemistry of the Chelyabinsk meteorite |
| 38838 |
in dataset |
oro |