Agricultural and Biological Sciences
3 years ago

Terrace pediments in Israel reveal ancient landscape secrets.

Earth Surface Processes and Landforms
Terrace pediments in Makhtesh Ramon, central Negev, Israel
Josef Plakht, N. G. Patyk‐Kara, Н. В. Гореликова

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Terrace pediments in Makhtesh Ramon, central Negev, Israel, make up about 30% of the cirque's bottom. These pediments are linked to river terraces, forming pairs of landforms that developed at the same time. Changes in local base levels control the formation of the pediment staircases. The Makhtesh Ramon valley was shaped by stream erosion and pedimentation, with intermittent erosion deepening the valley over time. The rate of terrace pediment formation in Makhtesh Ramon ranges from 0.05 to 0.10 mm per year.