Lithium in tektites and impact glasses: Implications for sources, histories and large impacts

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F11%3A00000001" target="_blank" >RIV/00025798:_____/11:00000001 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985831:_____/11:00363169 RIV/61389005:_____/11:00363169

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Lithium in tektites and impact glasses: Implications for sources, histories and large impacts

Popis výsledku v původním jazyce

Lithium (Li) abundances and isotope compositions were determined in a representative suite of tektites, impact-related glasses, a glass fragment embedded in the suevite from the Ries impact crater and sedimentary materials in order to test a possible susceptibility of Li to fractionation during hypervelocity impact events and to deconvolve links to their potential parental sources. The overall data show a large spread in Li abundance (4.7?58 ppm Li) and d7Li values (-3.2 to 26.0?) but individual groupshave distinctive Li compositions. Extreme shock pressures and the related extreme post-shock temperatures alone appear not to have any effect on the Li isotope systematics; therefore, useful information on parental lithologies and magmatic processes maybe retrieved from analyses of Martian and lunar meteorites. Moreover, lack of significant Li depletion in tektites provides further constraints on the loss of volatile and moderately volatile elements during the Moon-forming impact.

Název v anglickém jazyce

Lithium in tektites and impact glasses: Implications for sources, histories and large impacts

Popis výsledku anglicky

Lithium (Li) abundances and isotope compositions were determined in a representative suite of tektites, impact-related glasses, a glass fragment embedded in the suevite from the Ries impact crater and sedimentary materials in order to test a possible susceptibility of Li to fractionation during hypervelocity impact events and to deconvolve links to their potential parental sources. The overall data show a large spread in Li abundance (4.7?58 ppm Li) and d7Li values (-3.2 to 26.0?) but individual groupshave distinctive Li compositions. Extreme shock pressures and the related extreme post-shock temperatures alone appear not to have any effect on the Li isotope systematics; therefore, useful information on parental lithologies and magmatic processes maybe retrieved from analyses of Martian and lunar meteorites. Moreover, lack of significant Li depletion in tektites provides further constraints on the loss of volatile and moderately volatile elements during the Moon-forming impact.

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/GA205%2F09%2F0991" target="_blank" >GA205/09/0991: Vznik vltavínů - komplexní geochemické studium</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2011

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

75

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

22

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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