Why is there a beach and a mudflat?

In fact, beaches and mudflats are both components of tidal flats, and the composition of tidal flats is different, which is also caused by the different geographical environments and the different sediments in the sea area.

It should be a geological problem, maybe this coastline was originally sandy land, which was washed by the sea and turned into a sandy beach, and some are still stony land, and the coastline is full of craggy strange rocks.

Because there is a bit of a river estuary with a large mud content, and the sand is brought up by the waves after the stones are ground down from the bottom of the sea, it is difficult to have a beach at the mouth of the river with a large mud content.

The beach has sand, shells, reefs, corals, and more. The beach is the land along the water's edge formed by sand siltation, it is the soil of the seabed exposed to the sea surface in the movement of the earth's crust, and it is formed by turning into tiny particles under the impact of the waves, the beach is divided into two categories: naturally formed beach and artificial beach, there are tourist attractions such as Beihai beach and Sanya Yalong Bay and China's first long beach in China.

Features of the sandy beachSand is fine stone grains, the beach is the land along the coast that is piled up by sand, the shell is the mantle shell of mollusks living at the water's edge, which will follow the tide to the beach, the reef is the sea erosion residue above the sea erosion level, and is the rock very close to the water surface in the river and ocean, and the coral belongs to the coelenterate phylum Polyparians, which is the largest class in the coelenterate phylum.

Starfish is the most representative type of structure and physiology in echinoderms, the body is flattened and mostly symmetrical with five radiations, the boundary between the body disc and the wrist is not obvious, the mouth is facing downward and upward during life, the upper part of the beach material is generally coarser and the slope slope is larger, and the lower part of the material is more gentle than the fine beach slope, due to the repeated action of the shore wave and its rush and backflow, the beach sand becomes the best sediment for sorting.

Contains sand, shells, reefs, corals, etc.

A beach is a flat land that rises above the water surface along the water's edge or in the water due to the siltation 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, turning into tiny particles under the impact of the waves, becoming beaches and sands.

China's famous sandy beaches have Beihai Silver Beach, located in Beihai City, Guangxi Province, Silver Beach has the characteristics of long and flat beach, fine white sand, clean water temperature, soft waves, no sharks, less pollution, fresh air, etc., the beach is as white as silver, and the quartz ore content is as high as 98%.

First, broad. Vast and wide.

Cited explanation: "Fengyang and other disasters and injuries": "The theft plan was vast, and 30,000 taels of silver was not enough to give relief to the hungry people in the four prefectures and three states in January. ”

Second, golden. Yellow and reddish with a slight resemblance to the color of gold.

Citation: Feng Zhi's "New Hometown": "The golden sun dyes the branches of the roof trees. ”

3. Calm. There is no restlessness or turmoil.

Citation: *** "Critique of Han nationalism": "On the surface, it seems to be peaceful, but in fact the problem is very serious. ”

Fourth, purity. Free of impurities; Pure cleansing.

Citation: Ba Jin, "The Fourth Ward": "You can make your heart a little purer by reading poetry. ”

Fifth, white. White that is not stained by other colors.

Cited explanation: Mao Dun "Road" 5: "I know that most of the students in this school are white young people, but the words are too much, and outsiders will not be able to understand them like me when they see them." ”

This is the beach of the waves, the blue sea and blue sky, the waves are blooming, rhythmically lapping against the reef on the shore, playing a beautiful tune. This is our beautiful seaside town, with beautiful beaches, and our lives are always full.