Which erosional features are produced by Valley Alpine glaciers?Geology
D. Erosional feature produced by alpine valley glaciers is called Cirque. These are formed at the head of glacier and are formed by glacier pushing back into the mountain top. A cirque is characterized by bowl shaped depression at the head of the glacial valley.
What erosional features are produced by Alpine glaciers?
Alpine glaciers produce wide valleys with relatively flat bottoms and steep sides due to the erosion that occurs at the base and edges of the glaciers. These are known as U-shaped valleys (Figure 17.17). In contrast, unglaciated river valleys generally have a V shape.
What features are produced by valley glaciers?
U-Shaped Valleys, Fjords, and Hanging Valleys
Glaciers carve a set of distinctive, steep-walled, flat-bottomed valleys. U-shaped valleys, fjords, and hanging valleys are examples of the kinds of valleys glaciers can erode.
What shape do valleys created by alpine glaciers have?
Valley glaciers carve U-shaped valleys, as opposed to the V-shaped valleys carved by rivers. During periods when Earth’s climate cools, glaciers form and begin to flow downslope. Often, they take the easiest path, occupying the low V-shaped valleys once carved by rivers.
What are five landscape features formed by alpine glaciers?
LANDFORMS MADE BY ALPINE GLACIERS
Figure 17.7 shows how alpine glaciers erode mountain masses to create landforms such as aretes, horns, cols, moraines, tarns, hanging valleys, and glacial troughs.
What are glacial erosional landforms?
As the glaciers expand, due to their accumulating weight of snow and ice they crush and abrade and scour surfaces such as rocks and bedrock. The resulting erosional landforms include striations, cirques, glacial horns, arêtes, trim lines, U-shaped valleys, roches moutonnées, overdeepenings and hanging valleys.
What landforms are erosional?
Erosional landforms include headlands, bays, caves, arches, stacks, stumps and wave-cut platforms. There are also depositional landforms such as beaches, spits and bars. Geography.
What is an erosional feature?
Definition: A land surface shaped by the action of erosion, especially by running water.
How are erosional landforms created?
There are four key types of erosion: Abrasion – waves transport material which hit the cliff and gradually wear it away. Hydraulic action – as waves approach the coast they trap air and force it into gaps in the cliff. Eventually this weakens the rock.
What are erosional and depositional features?
Landforms created because of erosion are called erosional landforms and landforms created because of deposition are called depositional landforms. Erosional landforms: Valleys, potholes, entrenched Meanders and river Terraces. Depositional landforms: Alluvial Fans, deltas, meanders and braided channels.
What is erosional landforms of river?
River valleys, waterfalls, structural benches, river terraces, river meanders, ox-bow lakes and peneplains are some examples of erosional landforms formed by rivers.
Which of these shoreline features are erosional?
The most widespread landforms of erosional coasts are sea cliffs. These very steep to vertical bedrock cliffs range from only a few metres high to hundreds of metres above sea level. Their vertical nature is the result of wave-induced erosion near sea level and the subsequent collapse of rocks at higher elevation.
What is an erosional coastline?
Quite often, erosional coasts are narrow and characterized by resilient rocky shorelines that are exposed to high energy waves and supply relatively little sediment to the adjacent shore. This is the case for much of the western U.S. where there are numerous rocky exposures and vertical sea cliffs.
What are the 4 types of erosion that occur at the coast?
Destructive waves erode through four main processes; Hydraulic Action, Compression, Abrasion and Attrition. Image credit: Jeff Hansen, U.S. Geological Survey. Hydraulic Action is the sheer force of water crashing against the coastline causing material to be dislodged and carried away by the sea.
What features would you expect to see along an erosional coast?
What are some features common to erosional coasts? Common features include sea cliffs, sea caves, and wave-cut platforms just offshore.
Which of the following is not a feature of an erosional coast?
The correct option is b. The Baymouth barrier is not an erosional feature. It represents a depositional feature and occurs during longshore drift. A baymouth bar can develop a barrier between two water bodies.
Which kinds of features receive the most wave energy on an erosional coast?
On irregular coasts, the headlands receive much more wave energy than the intervening bays, and thus they are more strongly eroded. The result of this is coastal straightening.
What are 4 features formed by wave erosion?
what are four features formed by wave erosion? beaches, sandbars, barrier beaches, and spits.
What are 6 features formed by wave erosion?
Wave energy produces erosional formations such as cliffs, wave cut platforms, sea arches, and sea stacks. When waves reach the shore, they can form deposits such as beaches, spits, and barrier islands. Groins, jetties, breakwaters, and seawalls are structures that protect the shore from breaking waves.
Which features are created by wave erosion quizlet?
Terms in this set (8)
- cliffs. are steep rock faces along the coastline, they tend form along concordant coastlines with resistant rocks parallel to the coast. …
- Wave- cut platforms. …
- Off-shore terrace. …
- Caves. …
- Arches. …
- Stacks. …
- Headlands. …
Which feature is created by wave erosion ?\?
A wave-cut platform is the level area formed by wave erosion as the waves undercut a cliff. An arch is produced when waves erode through a cliff. When a sea arch collapses, the isolated towers of rocks that remain are known as sea stacks.
Which features are created by groundwater erosion and deposition?
Answer: Stalagmites, sinkholes and stalactites.
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