Structural changes in amber due to uranium mineralization

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985891%3A_____%2F16%3A00463518" target="_blank" >RIV/67985891:_____/16:00463518 - isvavai.cz</a>

Alternative codes found

RIV/61389005:_____/16:00463902

Result on the web

<a href="http://dx.doi.org/10.1016/j.jenvrad.2016.04.004" target="_blank" >http://dx.doi.org/10.1016/j.jenvrad.2016.04.004</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jenvrad.2016.04.004" target="_blank" >10.1016/j.jenvrad.2016.04.004</a>

Result language

angličtina

Original language name

Structural changes in amber due to uranium mineralization

Original language description

The presence of uranium, with a bulk mass fraction of about 1.5 wt% and radiolytic alterations are a feature of Cenomanian amber from Krizany, at the northeastern edge of the North Bohemian Cretaceous uranium ore district. Pores and microcracks in the amber were filled with a mineral admixture, mainly in the form of Zr-Y-REE enriched uraninite. As a result of radiolytic alterations due to the presence of uranium, structural changes were observed in the Krizany amber in comparison with a reference amber from Nove Straseci in central Bohemia; this was of similar age and botanical origin but did not contain elevated levels of uranium. Structural changes involved an increase in aromaticity due to dehydroaromatization of aliphatic cyclic hydrocarbons, loss of oxygen functional groups, an increase in the degree of polymerization, crosslinking of C-C bonds, formation of a three-dimensional hydrocarbon network in the bulk organic matrix, and carbonization of the organic matrix around the uraninite infill.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

DD - Geochemistry

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2016

Confidentiality

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

Name of the periodical

Journal of Environmental Radioactivity

ISSN

0265-931X

e-ISSN

—

Volume of the periodical

158-159

Issue of the periodical within the volume

JUL

Country of publishing house

GB - UNITED KINGDOM

Number of pages

13

Pages from-to

89-101

UT code for WoS article

000376699100011

EID of the result in the Scopus database

2-s2.0-84962905866