Is the sand in the desert the same as the sand on the beach? What s the difference?

If you just look at the composition of the sand, there is no difference between the two. But if you look at the composition, there will definitely be a big difference between the sand in the desert and the sand in the beach.

To some extent, there will be differences in the composition of the sand in each region, as well as certain morphological differences. Especially for the sand in the desert, because each desert is formed differently, there can be a big difference in the sand in the desert. At the same time, there is a big difference between the sand in the river beach and the sand in the beach, and the sand of various building materials that we usually refer to is generally the sand in the river beach, and the sand in the beach is basically not used.

There will be a difference in particle size between the two.

The sand in the desert is a very small particle and very dense sand grain, so it is also very convenient for us to use. This is very good for construction. However, there is also a lot of sand on the beach.

If you rub it with your hands, you can see that the particles present in them are very small. Even less than 1 mm, basically you can't see what it is, and the sand on the beach is generally not suitable for building materials, so it is necessary to pay attention to the reasonable screening of the sand when using it. <

There will also be a big difference in the use between the two.

The sand in the desert is mainly used to make some building materials. For example, it is used in housing construction, highway construction, etc. In addition, the air permeability of this sand is also very high, which can well connect the air permeability between the sand grains.

Some of the sand used on the beach comes from seawater. The main difference between the sand in the desert is that the sand on the beach itself does not have much use, so it is often used as a tourist attraction. <>

At the same time, the sand used on some beaches is disposed of as a very valuable garbage. Things like discarded car batteries and industrial waste are very common places.

It's different, the sand on the beach is filtered and will be more fine, while the sand in the desert is a little rougher.

The sand in the desert is not the same as the sand on the beach; The sand grains of the desert are smaller, while the sand of the beach is larger, and the sand of the desert is very good, and the sand of the beach is not easy to choose.

Due to the different causes of production, the composition of sediment is also different, the gravel in the desert is tiny, contains a large number of organic compounds, and contains salt soil sulfur and other impurities;

1. The sand on the beach is (fine) and (soft).

2. The sand on the beach is (white) and (fine).

3. The sand on the beach is (loose) and (soft).

Gravel is a fine stone grain, which is generally the main component of silica.

The crystallization is what we usually call artificial quartz stone crystals. Gravel is very widespread, there are gravel in the desert, gravel by the river, there is gravel by the sea, because most people's daily life is very limited, they are stupid and unclear about different kinds of gravel, and they feel almost the same, and they have always thought that gravel is the same.

The whole process of gravel in most areas is similar, which is produced by strong weathering of rock layers, and then accumulates together under the action of water flow and wind to form Gobi, sandy beaches and river beaches. However, although the main composition of gravel is similar in different places, there are still very big differences. The yellow sand wears gold armor in a hundred battles is the Gobi sand, and the river sand is exhausted.

The first sight of gold is river sand.

Golden sand beaches all over the coast of China.

It is sea sand, and the specifications and sediments contained in the three types of river sand are different, and the scope of application is also different.

Most of the concrete used in the concrete that everyone sees in their daily life is river sand. The gravel in the desert is too fine, there is soil, and the plasticity is relatively poor, so it cannot be used in concrete, while the sea sand on the seashore cannot be used in concrete. Of course, gravel in the desert is different from sea sand, which cannot grow and develop green plants, and Gobi gravel but a small number of plants grow.

Desert sand is generally produced by the action of the wind. In arid climates, stones gradually crumble under sedimentation, and larger stones remain in place, resulting in the Gobi Desert in Xinjiang.

and other geological formations, fine particles of fine stones.

It was piled up by the wind and caused the Gobi.

Gravel on the seashore is generally caused by the action of the ocean. The rocky layers on the seashore are hammered into fine particles of stone under the continuous impact of the ocean, creating sea sand. Due to the different causes of production, the composition of sediment is also different, the gravel in the desert is tiny, contains a large number of organic compounds, and contains salt soil sulfur and other impurities; Seaside gravel contains a lot of salts and other halogenated minerals, so none of the three can be used in construction projects.

If you must use sea sand and Gobi sand to pour concrete, it is not impossible, but it must be removed, sea sand removal is low-cost, and the cost of Gobi sand removal will be very high. Among them, there is a kind of "gravel", the fine particles are relatively larger, and the smoothness is more powerful, but it is generally polished from the stone by human resources.

Due to the different causes of sea sand and desert sand, the impurities contained in them are also different, the sand in the desert is small, contains a large amount of organic matter, and contains high impurities such as salt, alkali and sulfur; Seaside sand contains a lot of salts and other halated minerals.

It's the same. Deserts were also oceans in ancient times. Or the wind is very strong, and it has been blowing continuously for tens of thousands of years. In addition, the desert used to be stone, because of the high temperature during the day, and the temperature reached below zero at night.

People think of drought and heat, and the desert is also full of dangers, because it is inhabited by poisonous snakes and wild beasts. The desert is extremely hot during the day, and at night it can drip into ice, so if you are not completely prepared, you must spend the night there. But there are also many ancient ruins and rich oil minerals in the desert.

This is because the rocks on the seashore fall into the sea due to weathering and erosion, and the continuous erosion of the seawater, coupled with the friction between the rocks, makes the rocks become sand, the sand is relatively light, and the water can easily wash away the sand, and finally put them on the shore.

In addition, there is the blowing effect of the wind: when the wind blows from the land to the ocean, it will carry some sand, and after the washing of the seawater, the remaining sand will remain in the water, and the repeated high tide and low tide process will make the sand gather on the beach to form a beach.

That's why there's so much sand on the beach.

The difference is that dozens of formations are formed in different ways, but they are all changed by stones, and the sand in the river is formed by the continuous erosion of the water; The sand in the desert is formed by weathering.

The most common composition of sand is silica, usually in the form of quartz, which is chemically stable and hard enough to resist weathering.

The main component of sand is silicon dioxide (SiO2), and the density of silica is, ie.

The sand in the desert is the product of the bloom and its composition is the same as that of the parent material of the location, while the river sand is brought by the flow of water from other places, so its composition is different from the parent material of the location.

Desert sand, because there is no washing action of flowing water, can retain a certain degree of nutrients for plants to grow, while river sand is the opposite.

Sand refers to tiny stone grains, or things shaped like sand. It is also a metaphor for imperfect flaws.

After weathering, the rock is carried by the wind or water current, the small mass is carried away by the sediment to form the soil - the plain, and the medium mass is carried away when the wind speed or flow rate.

Reduced fecal deposition forms sandy beaches (soil is carried farther away when the carrier velocity drops, and gravel is deposited in advance), and large masses remain in place to continue weathering. In the end, it becomes soil, and that's how the soil on earth is formed. Of course, there are also magma eruptions to form rocks, although there are still far fewer volcanoes in the 21st century than in ancient times.

The sand used in the 21st century is transported from the sand field, where the sand gathers.

Sand is made up of minerals and tiny rock fragments. Rock chips are rocks that have been eroded and weathered. The composition of the sand varies from place to place, depending on the local rocks** and conditions.

Desert sand and river sand are essentially the products of broken rocks, which are essentially the same, desert sand is not unusable, but the cost of use is too high.

In the field of construction, because of the high roundness of the desert, the concrete with desert sand has a lower strength than the concrete with the same mix of river sand. To achieve the same strength as desert sand, higher quality cement and other means are required. Moreover, the existing concrete configuration standards are mostly for river sand, and the strength of concrete with desert sand is not easy to control.

The same sand, what is the difference between desert sand and river sand? The sand in the river is the sand washed out by the river, and the sand in the desert is the sand that is dried by the air.

The sand in the desert is more delicate due to the perennial friction, and the sand in the riverbed is coarser due to the action of the current, and the sand in the desert is a little thicker than the sand in the bed.

There is a substantial difference, the sand on the desert cannot be built as a building, but the sand of the river can be used to build a building.

The sentence is as follows:1. The sand on the beach is (fine) and (soft).

2. The sand on the beach is (white) and (fine).

3. The sand on the beach is (loose) and (soft).

4. The sand on the beach is soft and warm.

5. The sand on the beach is soft and slippery.

6. The sand on the beach is loose and soft.

Completion sentence points:

1. Guess the sentence structure according to punctuation. Punctuation is an organic component of text and sentences, and often implies a certain connection between semantics.

2. Check whether the content is logical, whether the semantics are coherent, whether the words are reasonable, and whether the rhetorical techniques are used.

Whether it is appropriate, whether the expression is concise, etc. If a problem is found, it should be corrected in time.

3. Read the original text and supplementary content coherently to see if it is really coherent, appropriate and rigorous.

Compared with ordinary sand, desert sand has the following differences: finer particle size: desert areas are perennially arid and lack water source and vegetation cover, while desert sand is not washed by water currents and resistance by vegetation, and the particle size is finer and the particles are more fine.

Smoother morphology: Since there is almost no vegetation in the desert, the wind-blown sand particles are the main erosive force, and the desert sand has undergone long-term wind erosion, the particle morphology is more rounded, and the coefficient of friction between them is reduced. The composition is different:

The composition of ordinary sand is relatively diverse, the main component is silica, but the composition of desert sand is relatively simple, most of it is quartz sand, and sometimes it also contains a small amount of gypsum and rock salt. Higher content of covering materials: Desert sand is often blown to other areas by the wind, so there are often a lot of covering materials on its surface, such as salt, lime, etc., which may be dispersed and affect the properties of desert sand.

In general, desert sand is more delicate and smooth than ordinary sand, with a relatively single composition, and often with a wrapping of the royal head.

The sand on the seashore is formed due to the erosion of rocks on land by seawater. The more water-soluble components of the rock, such as limestone, are lost with the seawater, and the sand is very hard, the quartz will retain the hail and be sold, due to the impact and weathering of the seawater over time, the large pieces of quartz will gradually break into small pieces, until they become small grains of sand.

The soil on the seabed is exposed to the surface of the sea during the movement of the earth's crust, and some coral reefs and shells are also exposed, which are reduced to tiny particles under the impact of the waves, and are carried by the waves to the land due to the exhaustion of kinetic energy, and are deposited into beaches and bending beaches. Rivers from the interior carry sediment from the land into the ocean, and the waves carry it to the land due to the exhaustion of dynamic energy, and deposit it into beaches and sandy beaches.

1. The sand on the beach is fine and soft, flocks of seagulls, chasing the waves, imitating Zhenkai holding Buddha like a beautiful picture;

2. The sand on the beach is (white) and (fine).

3. The sand on the beach is (loose) and (soft).

4. The sand on Sunyou Beach is soft and warm, naughtily scratching the soles of people's feet;

5. The sand on the beach is soft and slippery.

6. The sand on the beach is loose and soft, so comfortable, so comfortable;

7. The sand on the beach is beautiful and abundant;

8. The sand on the beach is white and soft;

9. The sand on the beach is fine and slippery;

10. The sand on the beach is beautiful and soft.