The most peculiar and peculiar landform of Nad Custer landform

The stone forest in Zhangjiajie, Hunan Province is a typical karst landform. The tall stone pillars have stood for thousands of years. The spectacle is endless. There are also mountains and rivers in Yunnan and Guizhou. For example, Lijiang, Lijiang, Guilin Landscape (Elephant Trunk Mountain) and so on are all classic works of karst.

Karst is karst, which is a general term for the geological action of water on soluble rocks (carbonate rock, gypsum, rock salt, etc.) mainly by chemical dissolution, supplemented by mechanical actions such as erosion, latent erosion and collapse of flowing water, as well as the phenomena caused by these actions. The landform caused by karst is called karst landform (karst landform).

China's karst landforms are widely distributed, with many types and typical landforms, ......The most typical distribution of classic karst landforms is in the Yunnan-Guizhou Plateau in China, Yunnan and Guizhou, and in the north, but the distribution is not very concentrated ......

Yunnan-Guizhou Plateau; [Ever heard of the Stone Forest? Extremely strange].

Istria (Yugoslavia); [It is said that this is also very strange] Guangxi, Guizhou, Yunnan;

Tibetan; There are also karst caves, canyons;

the coastal area at the southern tip of the Liaodong Peninsula (Dalian, [I am there]), Shiya;

Snowflake Cave of Fuxi Mountain; [It's beautiful].

Zhaoqing Seven Star Rock;

Liaoning-Benxi Water Cave; [I've heard of it, attractions].

A lot, in line with what Feng Biling people say.

Yunnan Stone Forest, just went last year, divided into large stone forest and small stone forest, the scenery of the big stone forest is the most obvious, and there is water around, very beautiful.

In China, the karst landform of the Yunnan-Guizhou Plateau is the most significant.

Yugoslavia, Yunnan-Guizhou region.

<> "It is a landform formed by the dissolution, erosion, latent erosion and collapse of soluble rocks by water with dissolution power, also known as rock rolling dissolution landform. The main component of limestone is calcium carbonate, which is soluble in water, so cavities are formed and gradually expanded. A variety of peculiar karst landscapes are formed on the surface and underground.

It is most typical on the karst plateau of the Adrian coast of southern Europe, and is widely distributed in the southwest of China.

Peak forest peak cluster, lonely peak big high balance, Tiansheng Bridge: peak cluster is a collection of mountain peaks. The peak forest is a further evolution of the peak cluster.

Peak forests transform into clusters of peaks as the earth's crust rises. The peaks are cone-shaped, tower-shaped, cylindrical and other sharp peaks, and stone buds and karst ditches are developed on the surface, and there are often karst caves and shafts between the peaks. Lone Peak:

The peculiar and beautiful landscape of Guilin will tell you. Tiansheng Bridge is an arch bridge-like landform formed by the dissolution of flowing water in the lower part of soluble rock.

Accumulation landform: the scale of the cave is different, there is a peculiar accumulation landform landscape: it is the essence of the cave landscape, gorgeous and colorful stone stalactites, stalagmites, stone pillars, stone mantles, stone grapes, stone corals, side stone embankments, etc., some are like lotus flowers open, and some are like branches stretching.

It is widely distributed in Hunan, Sichuan, Guizhou, Yunnan, Guangxi and other provinces and regions in China.

Dissolving Oak Landforms: Cauldrons and side grooves are common in caves.

Karst landform is a landform formed by the dissolution and precipitation, erosion and sedimentation of soluble rocks by groundwater and surface water, as well as gravity collapse, collapse and accumulation.

Karst landforms are divided into two categories: surface and underground, and there are stone buds and dissolution ditches, karst funnels, sinkholes, dissolution depressions, karst basins and karst plains, peak clusters, peak forests and solitary peaks. There are karst caves, underground rivers, and dark lakes underground.

Karst landforms are the most widely distributed in China, and they are concentrated in Guangxi, Guizhou, Yunnan and other provinces and regions, and are also distributed in some areas of Sichuan, Chongqing, Hunan, Shanxi, Gansu and Tibet. In other parts of the world, karst landforms are mainly distributed in the Dinara Mountains of Bosnia and Herzegovina, the ** Plateau of France, the Ural Mountains of Russia, the southern part of Australia, the central and eastern United States, the Greater Antilles and the north-central region of Vietnam.

It is possible to evolve into the following 6 landforms:

1. Surface water dissolves along the joint plane or fracture surface in the limestone to form a karst ditch (or karst groove), and the limestone originally distributed in layers is separated into stone pillars or stalagmites by the karst ditch.

2. Surface water seeps and dissolves downward along the limestone cracks, and forms a sinkhole after exceeding 100 meters deep.

3. Lateral flow occurs after the groundwater falling from the sinkhole to the aquifer to form a karst cave.

4. With the formation of underground caves, the surface collapses, and the depth of the collapse is large and small, which is called the collapse funnel, and the depth is small and the area is large.

5. The long-term combination of groundwater dissolution and collapse has formed a slope valley and a natural bridge.

6. The ground rises, the original karst cave and underground river are lifted out of the surface into dry valleys and stone forests, and the dissolution of groundwater in the old karst caves and underground rivers in the south of Yunnan Road is the product of the first stage (dissolution ditch stage), and the natural scenery here has become particularly charming because of the moving legend of Ashima girl. Guilin's Elephant Trunk Mountain was formed by the outcropping of the original underground river. In Guangxi, you can often see this kind of karst cave that rises above the surface, commonly known as "goddess mirror" or "fairy mirror".

It is possible to evolve into karst caves and other landforms. As we all know, karst landforms are caused by the dissolution of soluble rocks in the earth's crust after reacting with water, resulting in surface collapse, which is easy to form karst caves and other landforms.

Karst landforms.

Karst landform (kasitedimao) In the distribution area of soluble rocks (mainly limestone), various landforms on the surface and underground formed due to karst are collectively called karst landforms. Karst is the name of the limestone plateau in northwestern Yugoslavia, where a variety of peculiar limestone dissolution landforms have developed. At the end of the 19th century, the Yugoslav scholar J

Swift studied the landforms of the region, and he took the local place name as the name of this landform, and the word "karst" was gradually recognized by the geomorphological community and became a common geomorphological term in all countries of the world. In 1966, China held a national academic conference on "karst" in Guilin, Guangxi, and suggested that "karst" should be changed to "karst", and the terrain formed by limestone dissolution should be called "karst landform". In this way, between 1966 and 1989, the word "karst" was completely changed to "karst" in our publications.

Now, it has been uniformly corrected, and the use of "karst", an internationally unified term, has been restored in the geomorphology.

China has a long history of karst landform research, and there is a record of "subterranean flow" in the "Classic of Mountains and Seas" more than 2,000 years ago. More than 300 years ago, the Ming Dynasty geographer Xu Xiake (1586-1641) worked in Guangxi, Guizhou and Yunnan.

It is the result of long-term dissolution of groundwater in limestone areas. In fact, many scenic spots in China are karst landforms, which are commonly known as karst caves, and there are different influencing factors in each region, but the most basic ones are: 1

Jointed and developed tight limestone near the surface; 2.Precipitation is abundant; 3.The groundwater circulation is unobstructed and the air is moist.

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Hello! That's what you're saying.

Karst landforms, right?

Karst mineral springs and hot springs are rich in beneficial elements and gases and have medicinal value. Various sedimentary minerals are abundant in karst caves and ancient karst surfaces, and the ancient karst buried hills are good oil and gas storage structures.

The strange peaks and caves, the light and dark rivers, and the clear karst springs in the karst area are good tourist resources. For example, the Jiutian Cave in Sangzhi County, Zhangjiajie, Hunan Province has been included in the member cave of the Speleological Society, which can be called the first cave in Asia, and the Huanglong Cave is listed as a world natural heritage, a world geopark, and a component of the first batch of national 5A-level tourist areas in Zhangjiajie Wulingyuan, which is the topographical representative of Zhangjiajie underground karst, of which the karst landform accounts for about 40% of the city's area. The landscape of Guilin in Guangxi and the stone forest in Lunan in Yunnan are well-known at home and abroad.

Due to its unique geomorphological characteristics, karst landforms are often prone to "produce" different types of scenic areas. For example, Guizhou Dragon Palace, Zhijin Cave, etc.

Hope it helps you and adopts it as, thank you!