Titel
The sedimentological death mask of a dying glacier
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Abstract
The Pasterze is Austria's largest glacier, and it is experiencing rapid downwasting and retreat. A mosaic of complex sedimentary deposits has been produced in recent years which have not hitherto been studied, yet provide excellent lessons into the facies distribution expected from a dying valley glacier. In this paper, a new glaciological–geomorphological–geological map is presented for the glacier in July 2021. Freshly exposed (since 2018) tills and flutes constitute a subglacial sediment–landform assemblage. An ice-marginal sediment–landform assemblage comprises meltwater streams, a delta system and proglacial lake terrace deposits. The supraglacial assemblage, meanwhile, includes fossil englacial channel deposits revealed by ablation, together with debris bands, rockfall deposits and supraglacial channel deposits. Collectively, these sediment–landform assemblages constitute the building blocks of a dying glacier landsystem.
Stichwort
glacierlakemorainetillUAV
Objekt-Typ
Sprache
Englisch [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1671379
Erschienen in
Titel
The Depositional Record
Band
8
Ausgabe
3
ISSN
2055-4877
Erscheinungsdatum
2022
Seitenanfang
992
Seitenende
1007
Verlag
Wiley
Änderungsdatum
2022
Zugänglichkeit
Rechteangabe
© 2022 The Authors

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