Have a personal or library account? Click to login
Comparative analysis of the morphodynamics of talus slopes on Earth and Mars Cover

Comparative analysis of the morphodynamics of talus slopes on Earth and Mars

Open Access
|Jan 2026

Abstract

We performed an analysis of two talus slopes developed on Earth (Lanzarote and King George Island) and two on Mars (Terra Sabaea and Dacono craters) using remote sensing images. Visible boulders were manually vectorized in ArcGIS along talus transects. We obtained information on the angle of natural repose on each talus, and inferred the predominant transport mode and the activity of mass wasting. Temporal changes of these traces were determined based on images from 2008 to 2019. The effectiveness of the method used to analyse talus morphodynamics is described, and directions for further developments are indicated. Based on the analysis of vegetation (on Earth) and boulder paths and aeolian processes (on Mars), the talus slopes were assessed as active. The angle of natural repose is greater on Earth (28.0°–33.4°) than on Mars (16.7°–24.7°) but similar transportation modes occur on both planets (bouncing, rolling and sliding).

DOI: https://doi.org/10.2478/mgrsd-2025-0032 | Journal eISSN: 2084-6118 | Journal ISSN: 0867-6046
Language: English
Submitted on: Jan 29, 2025
|
Accepted on: Jun 17, 2025
|
Published on: Jan 9, 2026
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2026 Kacper Kreczmer, Maciej Dąbski, Anita Zambrowska, published by Faculty of Geography and Regional Studies, University of Warsaw
This work is licensed under the Creative Commons Attribution 4.0 License.

AHEAD OF PRINT