Thermal basal regime of the Elsterian ice-sheet marginal zone
in a hilly mountain foreland, Rychleby Mts., Eastern Sudetes

J 2021

Thermal basal regime of the Elsterian ice-sheet marginal zone in a hilly mountain foreland, Rychleby Mts., Eastern Sudetes

HANÁČEK, Martin, Daniel NÝVLT a Stephen James Arthur JENNINGS

Základní údaje

Originální název

Thermal basal regime of the Elsterian ice-sheet marginal zone in a hilly mountain foreland, Rychleby Mts., Eastern Sudetes

Autoři

HANÁČEK, Martin (203 Česká republika, garant, domácí), Daniel NÝVLT (203 Česká republika, domácí) a Stephen James Arthur JENNINGS (826 Velká Británie a Severní Irsko, domácí)

Vydání

Boreas, Hoboken, Wiley, 2021, 0300-9483

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10505 Geology

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 2.645

Kód RIV

RIV/00216224:14310/21:00121287

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1111/bor.12505

UT WoS

000612391200001

Klíčová slova anglicky

ice sheets; sedimentology; Rychleby Mountains foreland

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 28. 4. 2021 10:32, Mgr. Marie Šípková, DiS.

Anotace

V originále

The Scandinavian Ice Sheet reached the Sudetes and Carpathian Mountains during the Elsterian glaciation. A long ice-sheet piedmont marginal zone affected by the rugged mountain foreland topography and associated slopes originated. This study focuses on the hilly Rychleby Mts. foreland (Eastern Sudetes, Czechia), which was a part of the piedmont marginal foreland zone of the ice sheet. The basal regime was reconstructed through an investigation of the sedimentology, structural features, and the nature of ice-sheet erosion of preglacial landscapes evident at two sites located similar to 3-5 km inside the maximum ice-sheet extent. These sites show a preglacial relief buried by sub- to supraglacial sediments. The sites were located under an ice cover of max. 200 m. Evidence of cold-based conditions (including palaeotors with delicate structures on the bedrock, almost absent striations on clasts, originally frozen unlithified sedimentary rafts) exists at both sites. Permafrost composed of coarse-grained sediments was subject to brittle deformation at the base of the ice sheet, whereas permafrost composed of fine-grained sediments underwent ductile deformation. The margin of the Scandinavian Ice Sheet in the Rychleby Mts. foreland was cold-based, therefore glacial erosion was not sufficient to significantly remodel the palaeotors into roches moutonnees. During ice-sheet decay, the preglacial landscape was partially buried by melt-out tills and meltwater sediments.

Návaznosti

EF16_013/0001708, projekt VaV

Název: ECOPOLARIS - Změny ve struktuře a funkci součástí terestrických polárních ekosystémů (CzechPolar2)

EF16_027/0008360, projekt VaV

Název: Postdoc@MUNI

MUNI/A/1576/2018, interní kód MU

Název: Komplexní výzkum geografického prostředí planety Země

Investor: Masarykova univerzita, Komplexní výzkum geografického prostředí planety Země, DO R. 2020_Kategorie A - Specifický výzkum - Studentské výzkumné projekty

Citovat

HANÁČEK, Martin, Daniel NÝVLT a Stephen James Arthur JENNINGS. Thermal basal regime of the Elsterian ice-sheet marginal zone in a hilly mountain foreland, Rychleby Mts., Eastern Sudetes. Boreas. Hoboken: Wiley, 2021, roč. 50, č. 2, s. 582-605. ISSN 0300-9483. Dostupné z: https://dx.doi.org/10.1111/bor.12505.

@article{1754502,
   author = {Hanáček, Martin and Nývlt, Daniel and Jennings, Stephen James Arthur},
   article_location = {Hoboken},
   article_number = {2},
   doi = {http://dx.doi.org/10.1111/bor.12505},
   keywords = {ice sheets; sedimentology; Rychleby Mountains foreland},
   language = {eng},
   issn = {0300-9483},
   journal = {Boreas},
   title = {Thermal basal regime of the Elsterian ice-sheet marginal zone in a hilly mountain foreland, Rychleby Mts., Eastern Sudetes},
   url = {https://doi.org/10.1111/bor.12505},
   volume = {50},
   year = {2021}
}

TY  - JOUR
ID  - 1754502
AU  - Hanáček, Martin - Nývlt, Daniel - Jennings, Stephen James Arthur
PY  - 2021
TI  - Thermal basal regime of the Elsterian ice-sheet marginal zone in a hilly mountain foreland, Rychleby Mts., Eastern Sudetes
JF  - Boreas
VL  - 50
IS  - 2
SP  - 582-605
EP  - 582-605
PB  - Wiley
SN  - 03009483
KW  - ice sheets
KW  - sedimentology
KW  - Rychleby Mountains foreland
UR  - https://doi.org/10.1111/bor.12505
N2  - The Scandinavian Ice Sheet reached the Sudetes and Carpathian Mountains during the Elsterian glaciation. A long ice-sheet piedmont marginal zone affected by the rugged mountain foreland topography and associated slopes originated. This study focuses on the hilly Rychleby Mts. foreland (Eastern Sudetes, Czechia), which was a part of the piedmont marginal foreland zone of the ice sheet. The basal regime was reconstructed through an investigation of the sedimentology, structural features, and the nature of ice-sheet erosion of preglacial landscapes evident at two sites located similar to 3-5 km inside the maximum ice-sheet extent. These sites show a preglacial relief buried by sub- to supraglacial sediments. The sites were located under an ice cover of max. 200 m. Evidence of cold-based conditions (including palaeotors with delicate structures on the bedrock, almost absent striations on clasts, originally frozen unlithified sedimentary rafts) exists at both sites. Permafrost composed of coarse-grained sediments was subject to brittle deformation at the base of the ice sheet, whereas permafrost composed of fine-grained sediments underwent ductile deformation. The margin of the Scandinavian Ice Sheet in the Rychleby Mts. foreland was cold-based, therefore glacial erosion was not sufficient to significantly remodel the palaeotors into roches moutonnees. During ice-sheet decay, the preglacial landscape was partially buried by melt-out tills and meltwater sediments.
ER  -

HANÁČEK, Martin, Daniel NÝVLT a Stephen James Arthur JENNINGS. Thermal basal regime of the Elsterian ice-sheet marginal zone in a hilly mountain foreland, Rychleby Mts., Eastern Sudetes. \textit{Boreas}. Hoboken: Wiley, 2021, roč.~50, č.~2, s.~582-605. ISSN~0300-9483. Dostupné z: https://dx.doi.org/10.1111/bor.12505.

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