Morphological insights into tunnel valley formation and associated landforms: A case study from western Poland

Ewelina Lipka

doi:10.12657/landfana-043-006

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Morphological insights into tunnel valley formation and associated landforms: A case study from western Poland

Landform Analysis

Volume 43 (2024): Issue 1 (December 2024)

By: Ewelina Lipka

Open Access

|Dec 2024

Abstract

The genesis of tunnel valleys, key subglacial drainage features, is a subject of debate, with significant implications for understanding past ice-sheet dynamics. This study examines two neighbouring tunnel valleys along the Poznań Phase margin of the Scandinavian Ice Sheet in western Poland. Geomorphological mapping and digital terrain analysis reveal contrasting morphologies shaped by subglacial hydrological processes. Observed features, including glacial curvilineations, outwash fans, eskers, and washboard moraines, highlight interactions between episodic high-energy melt-water discharges and sustained drainage. The results support a hybrid model of formation, emphasizing the complexity of tunnel valley genesis during deglaciation.

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Articles in this issue

DOI: https://doi.org/10.12657/landfana-043-006 | Journal eISSN: 1429-799X

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Language: English

Page range: 69 - 79

Submitted on: Nov 23, 2024

Accepted on: Dec 28, 2024

Published on: Dec 28, 2024

Published by: Association of Polish Geomorphologists

In partnership with: Paradigm Publishing Services

Keywords:

geomorphological mapping,

glacial curvilineations,

Weichselian glaciation,

Scandinavian Ice Sheet,

Wielkopolskie Lakeland

Related subjects:

Geosciences,

Geology and mineralogy,

Geography,

Remote sensing,

Geosciences, other

© 2024 Ewelina Lipka, published by Association of Polish Geomorphologists
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Volume 43 (2024): Issue 1 (December 2024)