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The fate of moderately volatile elements in impact events – lithium connection between the Ries sediments and central European tektites

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F16%3A00000087" target="_blank" >RIV/00025798:_____/16:00000087 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985831:_____/16:00466967 RIV/00216208:11310/16:10330514 RIV/00025798:_____/16:00000381

  • Result on the web

    <a href="http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1945-5100" target="_blank" >http://onlinelibrary.wiley.com/journal/10.1111/(ISSN)1945-5100</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1111/maps.12733" target="_blank" >10.1111/maps.12733</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The fate of moderately volatile elements in impact events – lithium connection between the Ries sediments and central European tektites

  • Original language description

    Lithium abundances and isotope compositions are presented for a suite of sediments from the surroundings of the Ries Impact structure, paralleled by new Li data for central European tektites (moldavites) from several substrewn fields (South Bohemia, Moravia, Cheb Basin, Lusatia), including a specimen from the newly discovered substrewn field in Poland. The data set was supplemented by three clay fractions isolated from sedimentary samples. Moldavites measured in this study show a very narrow range in d7Li values (0.6 to 0.3& relative to L-SVEC) and Li contents (23.9–48.1 ppm). This contrasts with sediments from the Ries area which show remarkable range in Li isotope compositions (from 6.9 to 13.4&) and Li contents (0.6–256 ppm). The OSM sediments which, based on chemical similarity, formed the major part of moldavites show range in d7Li values from 2.0 to 7.9& and Li contents from 5.8 to 78.9 ppm. Therefore, the formation of moldavites was apparently accompanied by large-scale mixing, paralleled by chemical and isotope homogenization of their parent matter. The proposed Li mixing model indicates that sands, clayey sediments, and low volumes of carbonates are the major components for tektite formation whereas residual paleokarst sediments could have been a minor but important component for a subset of moldavites. Striking homogenization of Li in tektites, combined with limited Li loss during impacts, may suggest that moderately volatile elements are not scavenged and isotopically fractionated during large-scale collisions, which is consistent with recent models. In general, whether homogenization of bodies with distinct Li isotope systematics takes place, or collision of bodies with similar Li systematics operates cannot be resolved at present stage but Li isotope homogeneity of solar system planets and asteroidal bodies tentatively implies the latter.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    DD - Geochemistry

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/GA13-22351S" target="_blank" >GA13-22351S: Combined use of novel and traditional stable isotope systems in identifying source components and processes of moldavite formation</a><br>

  • Continuities

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

Others

  • Publication year

    2016

  • Confidentiality

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

Data specific for result type

  • Name of the periodical

    Meteoritics and Planetary Science

  • ISSN

    1086-9379

  • e-ISSN

  • Volume of the periodical

    51

  • Issue of the periodical within the volume

    12

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    13

  • Pages from-to

    2403-2415

  • UT code for WoS article

    000393138200009

  • EID of the result in the Scopus database