Lithium systematics in howardite?eucrite?diogenite meteorites: Implications for crust?mantle evolution of planetary embryos

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F14%3A00000027" target="_blank" >RIV/00025798:_____/14:00000027 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.gca.2013.10.015" target="_blank" >http://dx.doi.org/10.1016/j.gca.2013.10.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.gca.2013.10.015" target="_blank" >10.1016/j.gca.2013.10.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Lithium systematics in howardite?eucrite?diogenite meteorites: Implications for crust?mantle evolution of planetary embryos

Popis výsledku v původním jazyce

We present lithium (Li) abundances and isotope compositions in a suite of howardites, eucrites and diogenites. These meteorites most likely originated from asteroid Vesta and were delivered to Earth by a series of independent impact events. The Li concentrations show striking differences between Li-poor diogenites plus cumulate eucrites and Li-enriched eucrites whilst howardites have Li abundances intermediate between eucrites and diogenites. Contrary to Li elemental inter-group differences, Li isotopecompositions are irresolvable among these individual groups of HED meteorites despite their wildly distinct petrography, attesting to insignificant Li isotope fractionation during formation of a thick basaltic crust by melting of the Vestan mantle. The mean Li isotope composition of Bulk Silicate Vesta is estimated at 3.7+/-0.6? (1s), intermediate to that of the Earth versus Mars and Moon but identical with these terrestrial bodies within uncertainty. This further validates largely homog

Název v anglickém jazyce

Lithium systematics in howardite?eucrite?diogenite meteorites: Implications for crust?mantle evolution of planetary embryos

Popis výsledku anglicky

We present lithium (Li) abundances and isotope compositions in a suite of howardites, eucrites and diogenites. These meteorites most likely originated from asteroid Vesta and were delivered to Earth by a series of independent impact events. The Li concentrations show striking differences between Li-poor diogenites plus cumulate eucrites and Li-enriched eucrites whilst howardites have Li abundances intermediate between eucrites and diogenites. Contrary to Li elemental inter-group differences, Li isotopecompositions are irresolvable among these individual groups of HED meteorites despite their wildly distinct petrography, attesting to insignificant Li isotope fractionation during formation of a thick basaltic crust by melting of the Vestan mantle. The mean Li isotope composition of Bulk Silicate Vesta is estimated at 3.7+/-0.6? (1s), intermediate to that of the Earth versus Mars and Moon but identical with these terrestrial bodies within uncertainty. This further validates largely homog

Druh

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

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP210%2F12%2F1990" target="_blank" >GAP210/12/1990: Kontinentální litosféra jako zdroj diferencovaných alkalických láv a genetická role bazických magmat vymezení pomocí vulkanismu oherského příkopu</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Geochimica et Cosmochimica Acta

ISSN

0016-7037

e-ISSN

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Svazek periodika

125

Číslo periodika v rámci svazku

January

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

131-145

Kód UT WoS článku

000329066500009

EID výsledku v databázi Scopus

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