explain why inclined rock strata cause parallel valleys and ridges in geography (4)
Inclined rock strata cause parallel valleys and ridges in geography because:
1. Erosion: As water flows down the inclined rock strata, it erodes the softer rock layers more quickly than the harder layers. This differential erosion creates valleys along the softer rock layers and ridges along the harder rock layers, resulting in parallel landforms.
2. Weathering: The inclined rock strata can be subjected to different weathering processes, leading to the formation of valleys and ridges along the rock layers. For example, freeze-thaw weathering can weaken the rock layers, making them more susceptible to erosion.
3. Structural geology: The inclination of the rock strata can affect the overall structure of the landscape. When the rock layers are inclined, they can create a series of parallel valleys and ridges due to the structural arrangement of the rocks.
4. Tectonic activity: Inclined rock strata can be a result of tectonic forces that have uplifted and tilted the layers of rock. This tectonic activity can lead to the formation of parallel valleys and ridges as the rock layers are uplifted and eroded over time.