Title
New Perspectives on Glacial Geomorphology in Earth’s Deep Time Record
Author
M. E. Busfield
Department of Geography and Earth Sciences, Aberystwyth University
Author
X. Chen
Institute of Geology, Chinese Academy of Geological Sciences
... show all
Abstract
The deep time (pre-Quaternary) glacial record is an important means to understand the growth, development, and recession of the global cryosphere on very long timescales (106–108 Myr). Sedimentological description and interpretation of outcrops has traditionally played an important role. Whilst such data remain vital, new insights are now possible thanks to freely accessible aerial and satellite imagery, the widespread availability and affordability of Uncrewed Aerial Vehicles, and accessibility to 3D rendering software. In this paper, we showcase examples of glaciated landscapes from the Cryogenian, Ediacaran, Late Ordovician and Late Carboniferous where this approach is revolutionizing our understanding of deep time glaciation. Although some problems cannot be overcome (erosion or dissolution of the evidence), robust interpretations in terms of the evolving subglacial environment can be made. Citing examples from Australia (Cryogenian), China (Ediacaran), North and South Africa (Late Ordovician, Late Carboniferous), and Namibia (Late Carboniferous), we illustrate how the power of glacial geomorphology can be harnessed to interpret Earth’s ancient glacial record.
Keywords
glaciationgeomorphologysedimentologydiamictitestriated pavement
Object type
Language
English [eng]
Persistent identifier
https://phaidra.univie.ac.at/o:1624885
Appeared in
Title
Frontiers in Earth Science
Volume
10
ISSN
2296-6463
Issued
2022
Publisher
Frontiers Media SA
Date issued
2022
Access rights
Rights statement
© 2022 Le Heron, Busfield, Chen, Corkeron, Davies, Dietrich, Ghienne, Kettler, Scharfenberg, Vandyk and Wohlschlägl

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