at the base of a mountain stream
Depends on the environment and mode of deposition. I think that you're thinking of an alluvial fan.
These are called alluvial fans. They are typically composed of coarse sediment like sand and gravel, which is carried down mountainsides by fast-flowing streams and rivers and then spread out in a fan-like shape as the water loses energy and deposits the sediment.
A fan-shaped deposit of rock and soil is called an alluvial fan. It is formed when sediment is carried by flowing water and then deposited on a flat plain, typically found at the base of a mountain or hillslope. Alluvial fans are common in arid and semiarid regions.
An alluvial is sediment deposited at the mouth of a stream. An alluvial fan is when that sediment creates an arching fan shape when it is deposited. The fan shape is created when the stream's slope is suddenly and abruptly reduced. For example, when a mountain stream, which flows at a sharp angle, suddenly emerge onto a flatter surface.
Alluvial fans are typically formed at the base of a mountain or hilly terrain, where a river or stream carrying sediments suddenly slows down and deposits the sediments in a fan-shaped pattern. This process occurs in arid or semi-arid regions with high relief and limited vegetation to anchor the soil.
On dry land or a mountain.
On dry land or a mountain.
Delta on dry land refers to a geological feature that mimics the shape of a river delta but is formed by erosion from wind and rain rather than water. These structures can occur in arid regions where periodic flooding or flash floods shape the land into fan-shaped patterns resembling river deltas. They are often found in desert regions where limited vegetation and lack of water act as key factors in their formation.
alluvial fan?
Depends on the environment and mode of deposition. I think that you're thinking of an alluvial fan.
The alluvial fan deposited the river's sediment into the sea, creating a delta. As the glacier melted, an alluvial fan formed at the base of the mountain.
This is known as an Alluvial Fan. Please see related links.
No, Sediments deposited where a river flows into an ocean or lake builds up a land form called a delta. An alluvial fan is a wide, sloping deposit of sediment formed where a stream leaves a mountain range.
This is known as an Alluvial Fan. Please see related links.
An alluvial fan is a depositional feature which is formed when fast moving water comes out of a canyon, slows, and deposits the sediment it is carrying on a flat plain into a fan shaped structure.
These are called alluvial fans. They are typically composed of coarse sediment like sand and gravel, which is carried down mountainsides by fast-flowing streams and rivers and then spread out in a fan-like shape as the water loses energy and deposits the sediment.
Alluvial FansWhere a stream flows out of a steep, narrow mountain valley, the stream suddenly becomes wider and shallower. The water slows down, Here sediments are deposited in an alluvial fan. An alluvial fan is a wide, sloping deposit of sediment formed where a stream leaves a mountain range. As its name suggests, this deposit is shaped like a fan.