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Sand dunes are made from mainly one mineral - sand or quartz grains and they form and move to develop a typical cross bedding structure.
Loess however is wind blown silt (a mixture of sand and clay) with a fine grain size typically in the 20-50 micrometer range. The deposits are typically non stratified and cover a wide area. They also quickly become loosely cemented after deposition and are not reworked as are sand dunes.
The source material for loess deposits is the rock flour left by retreating Ice sheets and the deposits therfore form in temperate regions while Sand Dunes are an indication of arid desert (tropical) conditions.
What else can I help you with?
How are oxbows and loess similar?
They both show the constructive power of erosion.
What is difference between insuplast and vermiculite?
There is no difference between the two products.
What is difference between cro and dso?
difference between cro and powerscope?
What is the difference between activity and experiment?
the difference between activity and experiment is ...experiment is do
What is the difference between external and internal indicator?
what is the difference between the external & internal indicator
Fine sediment deposited by wind in layers is called?
deflate
What features result from deposition by wind?
Wind erosion and deposition may form sand dunes and loess deposits.
Do windblown loess like sand typically accumulates mound-like dunes?
Yes, windblown loess can accumulate in mound-like dunes, but they are typically more stable and less steep than sand dunes. Loess dunes tend to form gently sloping hills due to the fine-grained nature of the sediment.
How are the sediments in Loess deposits different from the sediments in the sand dunes?
Loess is very fertile while sand is not
How is loess different from sand?
Loess blankets a broad area; sand dunes aer mounds or ridges.
How do sand dunes and loess deposits form?
Wind erosion and deposition may form sand dunes and loess deposits. When the wind strikes an obstacle, the result is usually a sand dune!
What are two types of deposits formed by wind erosion and deposition?
Sand dunes and loess deposits are two types of deposits formed by wind erosion and deposition. Sand dunes are hills of sand that form in areas with strong winds, while loess deposits are fine, wind-blown sediment that accumulates over time to create thick layers of fertile soil.
What is sediment deposited by wind in layers called?
loess/dunes or aeolian deposits
What is the difference between parabolic sand dunes and barchan sand dunes?
That they are not called the same.duhhh
What two formations does wind deposition create how they are different?
Wind deposition primarily creates dunes and loess. Dunes are mounds or ridges of sand formed by the accumulation of sand particles moved by the wind, typically found in desert or coastal environments. In contrast, loess is a fine, silt-sized sediment that is wind-blown and can cover large areas, often resulting in fertile soil. The key difference lies in their composition and formation processes: dunes are composed mainly of sand, while loess consists of finer particles and often forms in areas with minimal vegetation.
What are two types of features that result from wind desposition?
Dunes and loess are two types of features that can result from wind deposition. Dunes are mounds of sand formed by wind action, while loess is a type of fine-grained sediment deposited by the wind and often found in extensive blankets.
What is the difference between loess and a dune?
Loess is a wind-blown sediment composed primarily of silt, which forms extensive, flat deposits in areas with limited vegetation. In contrast, a dune is a mound or ridge of sand that has been shaped and accumulated by the wind, typically found in deserts or coastal regions. While both are formed by wind processes, loess is a fine-grained sedimentary deposit, whereas dunes are larger, more dynamic landforms made up of coarser sand particles.
