Geomorphological and sedimentary evidence of probable glaciation in the Jizerské hory Mountains, Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F17%3A10332394" target="_blank" >RIV/00216208:11310/17:10332394 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.geomorph.2016.12.008" target="_blank" >http://dx.doi.org/10.1016/j.geomorph.2016.12.008</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geomorph.2016.12.008" target="_blank" >10.1016/j.geomorph.2016.12.008</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Geomorphological and sedimentary evidence of probable glaciation in the Jizerské hory Mountains, Central Europe

Popis výsledku v původním jazyce

The Jizerské hory Mountains in the Czech Republic have traditionally been considered to be a highland that lay beyond the limits of Quaternary glaciations. Recent work on cirque-like valley heads in the central part of the range has shown that niche glaciers could form during the Quaternary. Here we report geomorphological and sedimentary evidence for a small glacier in the Pytlácká jáma Hollow that represents one of the most-enclosed valley heads within the range. Shape and size characteristics of this landform indicate that the hollow is a glacial cirque at a degraded stage of development. Boulder accumulations at the downslope side of the hollow probably represent a relic of terminal moraines, and the grain size distribution of clasts together with micromorphology of quartz grains fromthe hollowindicate the glacial environment of a small glacier. This glacier represents the lowermost located such systemin central Europe and provides evidence for the presence of niche or small cirque glaciers probably during pre-Weichselian glacial periods. The glaciation limit (1000 m asl) and paleo-ELA (900 m asl) proposed for the Jizerské hory Mountains implies that central European ranges lower than 1100 m asl were probably glaciated during the Quaternary.

Název v anglickém jazyce

Geomorphological and sedimentary evidence of probable glaciation in the Jizerské hory Mountains, Central Europe

Popis výsledku anglicky

The Jizerské hory Mountains in the Czech Republic have traditionally been considered to be a highland that lay beyond the limits of Quaternary glaciations. Recent work on cirque-like valley heads in the central part of the range has shown that niche glaciers could form during the Quaternary. Here we report geomorphological and sedimentary evidence for a small glacier in the Pytlácká jáma Hollow that represents one of the most-enclosed valley heads within the range. Shape and size characteristics of this landform indicate that the hollow is a glacial cirque at a degraded stage of development. Boulder accumulations at the downslope side of the hollow probably represent a relic of terminal moraines, and the grain size distribution of clasts together with micromorphology of quartz grains fromthe hollowindicate the glacial environment of a small glacier. This glacier represents the lowermost located such systemin central Europe and provides evidence for the presence of niche or small cirque glaciers probably during pre-Weichselian glacial periods. The glaciation limit (1000 m asl) and paleo-ELA (900 m asl) proposed for the Jizerské hory Mountains implies that central European ranges lower than 1100 m asl were probably glaciated during the Quaternary.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/GAP209%2F10%2F0519" target="_blank" >GAP209/10/0519: Paleogeografická rekonstrukce ústupové fáze kvartérního horského zalednění v Českém masívu</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Geomorphology

ISSN

0169-555X

e-ISSN

—

Svazek periodika

neuveden

Číslo periodika v rámci svazku

280

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

39-50

Kód UT WoS článku

000393931400004

EID výsledku v databázi Scopus

2-s2.0-85006152390