Late Glacial sediments of the Stara Jimka paleolake and the first finding of Laacher See Tephra in the Czech Republic

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00503155" target="_blank" >RIV/61389005:_____/19:00503155 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985831:_____/19:00503155 RIV/67985891:_____/19:00509150 RIV/00216208:11310/19:10388343

Výsledek na webu

<a href="https://doi.org/10.1007/s00531-018-1658-y" target="_blank" >https://doi.org/10.1007/s00531-018-1658-y</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00531-018-1658-y" target="_blank" >10.1007/s00531-018-1658-y</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Late Glacial sediments of the Stara Jimka paleolake and the first finding of Laacher See Tephra in the Czech Republic

Popis výsledku v původním jazyce

The Late Glacial sedimentary sequence of the Stara Jimka paleolake (Bohemian Forest, Czech Republic) is characterized by the prevalence of detrital minerals with an elevated proportion of organic matter and abundant diatom valves in relatively warm periods. The mineral debris originated mainly from local migmatites and mica-schists (or glacial and deluvial deposits derived from the same material). Low background contents of CaO (<0.20 wt%) and Na2O (<0.50 wt%) reflect chemical weathering. Correlation analysis of trace elements shows that the mineral debris concentrates Rb, Cs, Ga, Cr, Zr, Hf, light rare earth elements, Th, U, Pb, Ba, Sr and weakly Zn, whereas Mo, Co, Se, As, Ni, Cu, Br and weakly Au are allocated predominantly to sulphides and organic matter. The sequence contains a continuous horizon with the Laacher See Tephra (LST), causing contrasting maxima of Na, Ca, Cl and Nb in bulk composition. While the phonolitic tephra corresponds to the lower part of the middle LST unit it also contains phosphorus-rich relicts of older sediments with small euhedral (air-transported) volcanic crystals. Such sediments may have occurred in depressions at an older volcano prior to the major Laacher See eruption (similar to 12,880 cal. BP).

Název v anglickém jazyce

Late Glacial sediments of the Stara Jimka paleolake and the first finding of Laacher See Tephra in the Czech Republic

Popis výsledku anglicky

The Late Glacial sedimentary sequence of the Stara Jimka paleolake (Bohemian Forest, Czech Republic) is characterized by the prevalence of detrital minerals with an elevated proportion of organic matter and abundant diatom valves in relatively warm periods. The mineral debris originated mainly from local migmatites and mica-schists (or glacial and deluvial deposits derived from the same material). Low background contents of CaO (<0.20 wt%) and Na2O (<0.50 wt%) reflect chemical weathering. Correlation analysis of trace elements shows that the mineral debris concentrates Rb, Cs, Ga, Cr, Zr, Hf, light rare earth elements, Th, U, Pb, Ba, Sr and weakly Zn, whereas Mo, Co, Se, As, Ni, Cu, Br and weakly Au are allocated predominantly to sulphides and organic matter. The sequence contains a continuous horizon with the Laacher See Tephra (LST), causing contrasting maxima of Na, Ca, Cl and Nb in bulk composition. While the phonolitic tephra corresponds to the lower part of the middle LST unit it also contains phosphorus-rich relicts of older sediments with small euhedral (air-transported) volcanic crystals. Such sediments may have occurred in depressions at an older volcano prior to the major Laacher See eruption (similar to 12,880 cal. BP).

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

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

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

International Journal of Earth Sciences

ISSN

1437-3254

e-ISSN

—

Svazek periodika

108

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

22

Strana od-do

357-378

Kód UT WoS článku

000458652200020

EID výsledku v databázi Scopus

2-s2.0-85056461698