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Sand Dunes

Differences of loess and sand dunes?

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How is loess different from sand dunes?

Loess blankets a broad area; sand dunes aer mounds or ridges.


What is the difference between dunes and loess?

Loess blankets a broad area; sand dunes are mounds or ridges


What is sediment deposited by wind in layers?

Could be loess, eolian dunes, or stratified windblown dunes, or sand dunes. The sediments could include sand, clay, silt, or loess.


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!


The two types of wind deposits?

sand dunes and loess


How are the sediments in loess deposited different from the ones in sand dunes?

Loess is characterized by being extremely fertile.


Do windblown loess like sand typically accumulates mound-like dunes?

False.


How are the sediments in loess different from the sediments in a sand dune?

Glacially derived loess deposits are typically composed of silt-sized particles, clay, and sand. Sand dunes are composed primarily of sand-sized particles, most often of quartz.


What features result from deposition by wind?

Wind erosion and deposition may form sand dunes and loess deposits.


What are two types of features that result from wind deposition?

Wind erosion and deposition may form sand dunes and loess deposits


Loess dunes and moraines are examples of what?

Abrasion


What are two types of deposits formed by wind erosion and deposition?

Wind erosion and deposition may form Sand Dunes and Loess Deposits.


How are the sediments in the loess deposits different from the sediments in a sand dune?

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 features results from deposition by wind?

loess and dunes


How many sand dunes are in Michigan?

There are only two sand dunes in Michigan. The two sand dunes are Sleeping Bear Dunes and Sliver lake sand dunes.


Why does loess can be carried further than sand?

why do you think loess can be carried futher than sand


Why do you think loess can be carried further than sand?

Maybe the loess deposits are lighter than the sand.


How are the sediments in loess deposits different from sediments in a sand dune?

Loess is very fertile while sand is not


What are sand dunes?

Sand dunes are heaps of wind blown sand


The largest sand dunes?

the largest sand dunes


What is the name for sand dunes in the desert?

sand dunes


What are facts about sand dunes?

sand dunes change


How do sand dunes grow?

wind blows sand particles to other sand dunes and wa-la your sand dunes grow


Is the sleeping bear dunes the biggest sand dunes in Michigan?

No... Silver Lake sand dunes are the largest sand dunes in Michigan.But sleeping bear dunes are the biggest fresh water dunes in the world.


Are sand dunes big?

yes sand dunes are big