Time, weather.
The Appalachian Mountains were formed around 480 million years ago and have been eroding since then. The forces of weathering, erosion, and tectonic activity have worn down the mountains over time, making them lower than they were when they were first formed. Additionally, the region has not experienced significant volcanic activity to create new peaks.
Last I checked, the process was wind erosion. Water may have also played a role, but in a mountain range when it becomes more rounded, rather than jagged, it is usually wind erosion. the Appalachian Mountains are also hypothesized to be older than the Rockie Mountains therefore, having more time to wear away.
The Appalachian region in the eastern United States is known for its old eroded mountains, including the Blue Ridge Mountains and the Great Smoky Mountains. These mountains were formed hundreds of millions of years ago and have been gradually worn down by erosion.
The Appalachian Mountains are older and more eroded than the Rocky Mountains.
because they have been worn down by approximately 250 million years of weathering and erosion. -Star
An example of an eroded mountain is the Appalachian Mountains in the eastern United States. Over millions of years, the forces of weathering and erosion have worn down these once towering mountains into rolling hills and valleys.
The Appalachian Mountains were worn down by the processes of erosion, including water, wind, and glaciers over millions of years. These erosional forces gradually smoothed out the peaks and created the rolling landscape we see today.
Last I checked, the process was wind erosion. Water may have also played a role, but in a mountain range when it becomes more rounded, rather than jagged, it is usually wind erosion. the Appalachian Mountains are also hypothesized to be older than the Rockie Mountains therefore, having more time to wear away.
The Appalachians are older than the rocky mountains because of the fact that the Appalachians are smaller in size proving that the Appalachians have had longer to have been worn away by weathering also please do not just copy and paste you will learn nothing...
Young mountains have sharp edges because they have not been worn down by erosion. Old mountains are rounded and smoother.
The Appalachian and the Smokey Mtns. The are relatively old and weather worn mountains (smooth) as compared to 'young' mountains like the Rockies or the Alps, which are jagged with rugged, sharp peaks.
Geologically speaking the Appalachians are older. The Rockies are an example of geological upheaval, while the Appalachians used to be a solid plain millions of years ago and eroded to become the mountains we have today.