Origin and Be-10 surface exposure dating of a coarse debris accumulation in the Hruby Jesenik Mountains, Central Europe

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F20%3A10416507" target="_blank" >RIV/00216208:11310/20:10416507 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=C3i_6vcrC_" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=C3i_6vcrC_</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.geomorph.2020.107292" target="_blank" >10.1016/j.geomorph.2020.107292</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Origin and Be-10 surface exposure dating of a coarse debris accumulation in the Hruby Jesenik Mountains, Central Europe

Popis výsledku v původním jazyce

Coarse debris accumulations cover large areas in high latitude and mountain environments, but their age and origin remain mostly unknown. Here we reassess the morphology of a prominent coarse debris accumulation in the Sudetes Mountain range in central Europe and constrain its timing with Be-10 surface exposure data. Our observations indicate that the landform in the south-eastern slope of the Sut ridge appears consistent with the morphology of a block slope. The oldest minimum age of 150.1 +/- 4.8 ka obtained for the tor at the upper limit of the block slope indicates the disintegration of the ridge and surface lowering under periglacial conditions prior to the last glacial-interglacial cycle. Four exposure ages retrieved for block samples range from 84.3 +/- 3.8 to 26.8 +/- 2.6 ka, providing evidence for block emplacement during the last cold period. The exposure ages extend existing chronological dataset for peri/glacial landforms in the Sudetes and constrain the timing of cold environments in the area prior the Last Glacial Maximum. The ages are also consistent with surface exposure data reported for block fields and block slopes in Western Europe and confirm the formation of similar landforms over the last glacial period in the Sudetes. (C) 2020 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Origin and Be-10 surface exposure dating of a coarse debris accumulation in the Hruby Jesenik Mountains, Central Europe

Popis výsledku anglicky

Coarse debris accumulations cover large areas in high latitude and mountain environments, but their age and origin remain mostly unknown. Here we reassess the morphology of a prominent coarse debris accumulation in the Sudetes Mountain range in central Europe and constrain its timing with Be-10 surface exposure data. Our observations indicate that the landform in the south-eastern slope of the Sut ridge appears consistent with the morphology of a block slope. The oldest minimum age of 150.1 +/- 4.8 ka obtained for the tor at the upper limit of the block slope indicates the disintegration of the ridge and surface lowering under periglacial conditions prior to the last glacial-interglacial cycle. Four exposure ages retrieved for block samples range from 84.3 +/- 3.8 to 26.8 +/- 2.6 ka, providing evidence for block emplacement during the last cold period. The exposure ages extend existing chronological dataset for peri/glacial landforms in the Sudetes and constrain the timing of cold environments in the area prior the Last Glacial Maximum. The ages are also consistent with surface exposure data reported for block fields and block slopes in Western Europe and confirm the formation of similar landforms over the last glacial period in the Sudetes. (C) 2020 Elsevier B.V. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10508 - Physical geography

Projekt

<a href="/cs/project/GA17-21612S" target="_blank" >GA17-21612S: Vývoj strukturních půd a jejich paleogeografický význam pro rekonstrukci přírodních podmínek střední Evropy v kvartéru</a><br>

Návaznosti

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

Rok uplatnění

2020

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

365

Číslo periodika v rámci svazku

September

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

107292

Kód UT WoS článku

000546314800018

EID výsledku v databázi Scopus

2-s2.0-85086429911