Late Paleozoic glaciated landscape in northern Africa as an outstandingly well-preserved analogue to Quaternary deglaciated areas

The Ennedi Massif in Chad reveals an exceptionally well-preserved Paleozoic ice stream landscape, offering a unique analogue to Quaternary deglaciated regions. This study identifies a grounding zone wedge—a feature that reconstructs the former coastline—using large-scale glacial lineations and convex topography orthogonal to these structures. The absence of vegetation in the desert environment highlights subglacial, ice-marginal, and proglacial features, including inverted channel sediments that may record meltwater release phases during ice retreat. This landscape provides a rare opportunity to study the spatial relationships between components of an ancient ice sheet, enhancing our understanding of modern glaciated areas.

Wohlschlägl, R., Kettler, C., Le Heron, D., & Zboray, A. (2023). Late Paleozoic glaciated landscape in northern Africa as an outstandingly well-preserved analogue to Quaternary deglaciated areas. https://doi.org/10.5194/egusphere-egu23-7230