The changes in chemical composition and properties of subfossil oak deposited in Holocene sediments

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F14%3A00000125" target="_blank" >RIV/00025798:_____/14:00000125 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/14:00216297

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

The changes in chemical composition and properties of subfossil oak deposited in Holocene sediments

Popis výsledku v původním jazyce

The study deals with the influence of chemical composition changes on subfossil wood properties in comparison to recent wood in the conditions of the Czech Republic, in dependence on the specific geological sediments the wood was deposited in. Chemical constituents (including individual elements) were established in order to determine what type of fossilization proceeds in the specific geological conditions. As regards properties, attention focuses on density, shrinkage, compression strength parallel tograin and hardness. We ascertained that the proportions of ash and calcium in subfossil wood increase as well as the proportion of lignin which increases at the expense of polysaccharides. The differences in chemical composition cause differences in behaviour of wood, e.g. shrinkage increases or mechanical properties deteriorate. The results indicate that the influence of the environment in which the wood was deposited on the changes in chemical composition and thus mechanical propertie

Název v anglickém jazyce

The changes in chemical composition and properties of subfossil oak deposited in Holocene sediments

Popis výsledku anglicky

The study deals with the influence of chemical composition changes on subfossil wood properties in comparison to recent wood in the conditions of the Czech Republic, in dependence on the specific geological sediments the wood was deposited in. Chemical constituents (including individual elements) were established in order to determine what type of fossilization proceeds in the specific geological conditions. As regards properties, attention focuses on density, shrinkage, compression strength parallel tograin and hardness. We ascertained that the proportions of ash and calcium in subfossil wood increase as well as the proportion of lignin which increases at the expense of polysaccharides. The differences in chemical composition cause differences in behaviour of wood, e.g. shrinkage increases or mechanical properties deteriorate. The results indicate that the influence of the environment in which the wood was deposited on the changes in chemical composition and thus mechanical propertie

Druh

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

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

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

Wood Research

ISSN

1336-4561

e-ISSN

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Svazek periodika

59

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

16

Strana od-do

149-166

Kód UT WoS článku

000334566000013

EID výsledku v databázi Scopus

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