Back to Erosion Landform
-Inverted topography
-Topographic inversion
example topography discovered on Mars.
I. A stream valley / lake basin.
II. wind erosion removes fine-grained sediments.
lava
welded tuff
-Table Mountain
-Tuolumne County, California
- Inverted relief known as;
-Inverted topography
-Topographic inversion
- That reversed elevation relative to other features.
- Low areas of a landscape become filled with lava / sediment.
- That hardens into material.
- That is resistant to erosion.
- Differential erosion removes the less resistant surrounding material.
- Leaving behind the younger resistant material.
- Then appear as a ridge where previously there was a valley.
- Inverted relief observed on the surfaces of other planets.
example topography discovered on Mars.
Processes of erosion than slopes and uplands:
- First, coarse-grained sediment.(gravel)
- It accumulates in the depression;
I. A stream valley / lake basin.
II. wind erosion removes fine-grained sediments.
- A fluvial valley fills volcanic material.such as;
lava
welded tuff
- This resist erosion surrounding surface.
- It is eroded away to create a ridge.
- Cementation of underlying sediments by minerals.
- Dissolved in water occur in a depression.
- Minerals for cementation can come from groundwater.
- It is thought that a low point.
- It is in a greater degree of cementation.
- The cemented sediments would resist erosion.
-Table Mountain
-Tuolumne County, California
- Multiple lava flows filled an ancient fluvial valley.
- That cut westward through the central Sierra Nevada to the Central Valley about 10.5 million years ago.
No comments:
Post a Comment