The glacial geomorphology of sub-Antarctic Marion Island

Since the discovery of glacial features on sub-Antarctic Marion Island, the character and extent of a historic glacial period have remained an important research focus for earth science investigations. Previous glacial reconstructions were limited to mostly pre-GPS field observations and pre-digital...

Full description

Bibliographic Details
Published in:Journal of Maps
Main Authors: Elizabeth M. Rudolph, David W. Hedding, Werner Nel
Format: Article in Journal/Newspaper
Language:English
Published: Taylor & Francis Group 2021
Subjects:
sub-antarctic
marion island
glacial geomorphology
mapping
palaeo-ice extent
quaternary landscape evolution
Maps
G3180-9980
Antarctic
Antarc*
Marion Island
Online Access:https://doi.org/10.1080/17445647.2021.1931970
https://doaj.org/article/03633a709434440e9647b42e7b907430
Description
Summary:Since the discovery of glacial features on sub-Antarctic Marion Island, the character and extent of a historic glacial period have remained an important research focus for earth science investigations. Previous glacial reconstructions were limited to mostly pre-GPS field observations and pre-digital mapping through a Geographic Information System. With the aid of GPS field mapping, high-resolution satellite imagery and a digital surface model with a 1 × 1 m cell resolution, this paper provides a comprehensive, geo-rectified spatial geodatabase and map of Marion Island’s glacial geomorphology. The geodatabase includes an inventory of glacial erosional (e.g. striations) and depositional (e.g. moraines) features compiled from existing records as well as new features mapped from recent field observations. The final map and the geodatabase, which is downloadable as ESRI layer-package files, will aid future field investigations and modelling applications to understand Marion Island’s Quaternary landscape evolution and post-glacial ecological succession.

Similar Items