Mineralogy, reflectance spectra, and physical properties of the Chelyabinsk LL5 chondrite ? Insight into shock-induced changes in asteroid regoliths

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F14%3A00000473" target="_blank" >RIV/00025798:_____/14:00000473 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985831:_____/14:00427675

Výsledek na webu

<a href="http://www.elsevier.com/" target="_blank" >http://www.elsevier.com/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.icarus.2013.09.027" target="_blank" >10.1016/j.icarus.2013.09.027</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mineralogy, reflectance spectra, and physical properties of the Chelyabinsk LL5 chondrite ? Insight into shock-induced changes in asteroid regoliths

Popis výsledku v původním jazyce

The mineralogy and physical properties of Chelyabinsk meteorites (fall, February 15, 2013) are presented. Three types of meteorite material are present, described as the light-colored, dark-colored, and impactmelt lithologies. All are of LL5 compositionwith the impact-melt lithology being close to whole-rock melt and the dark-colored lithology being shock-darkened due to partial melting of iron metal and sulfides. This enables us to study the effect of increasing shock on material with identical composition and origin. Based on the magnetic susceptibility, the Chelyabinsk meteorites are richer in metallic iron as compared to other LL chondrites. The measured bulk and grain densities and the porosity closely resemble other LL chondrites. Shock darkening does not have a significant effect on the material physical properties, but causes a decrease of reflectance and decrease in silicate absorption bands in the reflectance spectra. This is similar to the space weathering effects observed

Název v anglickém jazyce

Mineralogy, reflectance spectra, and physical properties of the Chelyabinsk LL5 chondrite ? Insight into shock-induced changes in asteroid regoliths

Popis výsledku anglicky

The mineralogy and physical properties of Chelyabinsk meteorites (fall, February 15, 2013) are presented. Three types of meteorite material are present, described as the light-colored, dark-colored, and impactmelt lithologies. All are of LL5 compositionwith the impact-melt lithology being close to whole-rock melt and the dark-colored lithology being shock-darkened due to partial melting of iron metal and sulfides. This enables us to study the effect of increasing shock on material with identical composition and origin. Based on the magnetic susceptibility, the Chelyabinsk meteorites are richer in metallic iron as compared to other LL chondrites. The measured bulk and grain densities and the porosity closely resemble other LL chondrites. Shock darkening does not have a significant effect on the material physical properties, but causes a decrease of reflectance and decrease in silicate absorption bands in the reflectance spectra. This is similar to the space weathering effects observed

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DB - Geologie a mineralogie

OECD FORD obor

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Projekt

<a href="/cs/project/LH12079" target="_blank" >LH12079: Simulace kosmického zvětrávání - vliv přítomnosti nanočástic železa na reflektanční spektra planetek</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Icarus. International Journal Of Solar System Studies

ISSN

0019-1035

e-ISSN

—

Svazek periodika

228

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

78-85

Kód UT WoS článku

000328665900007

EID výsledku v databázi Scopus

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