New Perspectives on Glacial Geomorphology in Earth’s Deep Time Record - INSU - Institut national des sciences de l'Univers Accéder directement au contenu
Article Dans Une Revue Frontiers in Earth Science Année : 2022

New Perspectives on Glacial Geomorphology in Earth’s Deep Time Record

Résumé

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 (10 6-10 8 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.

Domaines

Géomorphologie
Fichier principal
Vignette du fichier
Le Heron et al., 2022 New perspectives on glacial geomorphology_compressed.pdf (1.76 Mo) Télécharger le fichier
Origine : Fichiers éditeurs autorisés sur une archive ouverte

Dates et versions

insu-03701561 , version 1 (22-06-2022)

Licence

Paternité

Identifiants

Citer

D P Le Heron, M E Busfield, X. Chen, M. Corkeron, B J Davies, et al.. New Perspectives on Glacial Geomorphology in Earth’s Deep Time Record. Frontiers in Earth Science, In press, 10, ⟨10.3389/feart.2022.870359⟩. ⟨insu-03701561⟩
54 Consultations
54 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More