Limestone Mountain Introduction to Limestone Mountain

1. Limestone Mountain

Jiuzhaigou: World Natural Heritage, National Key Scenic Area, National AAAAA Tourist Area, National Nature Reserve, National Geopark, World Biosphere Reserve Network. It is China's first nature reserve with the main purpose of protecting natural scenery.

Jiuzhaigou is located in Jiuzhaigou County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan Province. It is in the transition zone from the Qinghai-Tibet Plateau, Western Sichuan Plateau and mountainous areas to the Sichuan Basin, more than 300 kilometers south of Chengdu. It is a ravine and canyon more than 50 kilometers deep, with a total area of ??64,297 hectares and a forest coverage rate of more than 80%. There are 9 Tibetan villages in the ditch, including Shuzheng Village, Yehe Village, and Zechawa Village, all located in this mountain lake group.

Jiuzhaigou National Nature Reserve mainly protects rare animals such as giant pandas and golden monkeys and their natural ecological environment. There are 74 species of rare plants protected by the state, 18 species of animals protected by the state, as well as rich fossils and ancient glacial landforms.

Returning from Jiuzhaigou without looking at the water is a true interpretation of the scenery of Jiuzhaigou. There are 108 lakes including springs, waterfalls, rivers and beaches, which constitute the colorful jade basin of Yao Chi. The six major landscapes of Changhai, Jianyan, Nuorilang, Shuzheng, Zharu and Heihai are distributed in a Y shape. Green sea, waterfall, Cai Lin, snow peak, navy blue and blue ice are known as the six wonders. The magical Jiuzhaigou is known as the fairy tale world and the king of waterscapes.

2. Why are the limestone mountain walls black

Tanxian Gorge is a national scenic spot with a maximum altitude of 1,342 meters and a minimum altitude of 380 meters. It is a typical karst mountainous area with dense vegetation, pleasant climate and beautiful environment.

Tanxian Gorge is located in the southeast of Wanzhou District, Chongqing City and is a national-level scenic spot. It is a canyon-type scenic spot composed of limestone, with a total area of ??69 square kilometers, including a forest area of ??32,100 acres and a forest coverage rate of 64.7%. It is integrated with the municipal nature reserve Wangerbao, a kingdom of rare animals, plants and insects in the Three Gorges Reservoir area. The water potential in the middle gorge changes with the seasons, and is most important in summer. Some canyon sections are available for boating and recreation. The water quality of Zhongxia is clear and pollution-free. Every time the water in the gorge hits the mountain wall, it turns into a pool. There are 48 pools in the canyon, each of which is a natural swimming pool.

3. Limestone cave

There are many people because it is the only cave in the world that is listed as a World Natural Heritage. Furong Cave is a huge cave with rich sediments.

Furong Cave is a large limestone cave formed in the Quaternary Pleistocene (about 1.2 million years ago) and developed in the Paleocambrian dolomitic limestone. The stable temperature deep inside the cave is 16.1 degrees. The main cave of Furong Cave is 2,700 meters long, the sightseeing road is 1,860 meters long, the bottom width is 12-15 meters, and the maximum width is 69.5 meters. The cave height is generally 8-25m, with a maximum of 48.3m. The total area at the bottom of the cave is 37,000 square meters, of which Jinxiu Hall covers an area of ??more than 1,000 square meters and 11,000 square meters, which is the most spectacular.

4. Limestone mountainous areas

Black lime soil, also known as humic carbonate soil, is a kind of lime (rock) soil.

Soil rich in calcium carbonate and humus grows on limestone parent material in tropical and subtropical regions.

Scattered in tropical and subtropical limestone mountainous areas, commonly found on top of Rocky Mountains, in crevices in rock walls, or in low-lying areas of valleys. Generally, the soil layer is thin and mostly has an A-C profile structure. The leaching effect of calcium carbonate is weak and often appears in the profile in the form of pseudomycelium, white powder or nodules. The surface organic matter content is 6-7%, the soil color is darker, and although the texture is sticky, the granular or nuclear granular structure is developed. Neutral to alkaline reaction, pH 6.5-8.0. The base saturation is usually gt60%. The silicon-aluminum ratio of the particles is about 2.4-3.6, and the clay minerals are mainly hydrated mica and montmorillonite. The potassium oxide content is about 3%, and the free iron oxide content is only 8-9%. It is a relatively young soil among lime (rocky) soils.

5. What are the limestone mountains?

The formation of caves in limestone areas is the result of long-term erosion of groundwater in limestone areas. Insoluble calcium carbonate in limestone can be converted into

6. Are there rockeries and stalagmites on the limestone mountains?

Stalamites are not living things. Stalagmites are calcium carbonate limestone found in pointed cones at the bottom of karst caves and are a natural phenomenon in karst terrain. It is a type of limestone that does not conform to the seven characteristics of life, so it is not a living thing.

Stalactites are formed by calcium carbonate precipitating from stalactites dripping into the water at the bottom of the cave. They grow from bottom to top. Stalagmites and stalactites grow slowly, reaching a height of about one meter in 10,000 years.

7. Limestone mountains

The terrain of the Hongshui River Basin is high in the north and low in the south. The altitude in the north is 900-1600 meters, and the valley in the south is 230-300 meters.

The entire basin is dominated by mountains, with mountains accounting for 82% of the total area and hills accounting for 18%. The Hongshui River Basin in Guizhou Province is located on the slopes of the Yunnan-Guizhou Plateau and is an ancient planation plane during the mountain basin period. Due to the intermittent rise of the crust and the development of water systems in the Quaternary, the plateau has suffered surface degradation, and the landforms are manifested by sand shale erosion mountains and limestone peak cluster hills and funnel injection of peak cluster roads. The exposed strata include Ordovician, Silurian mud, basin, Carboniferous, Permian, Triassic, Paleogene, Quaternary, etc.

The Carboniferous, Permian and Triassic strata are the main ones, with other strata appearing only in local areas. Limestone is widely distributed and karst is developed. Most of the tributaries merge into the main stream several times, and there are many karst springs and peak forest depressions. The Fuhe River section varies from tens to hundreds of meters, making it an advantageous river section for the development of small and medium-sized hydropower stations. Underground mineral deposits include coal, barite, iron, sulfur, etc.

8. Limestone mountain spring water

Hailibingshen natural high-quality mineral water, the water source is located in Hailing Spring, one of the eight scenic spots in Anqiu.

This spring is located on the east side of Yimeng Mountain. The spring water is blocked and filtered by multiple layers of limestone and granite, and gushes out from the bottom of a thousand meters. There is no pollution for hundreds of miles, and the water is pure and sweet, rich in a variety of minerals and trace elements needed by the human body.

:9. What are the mountains of limestone?

1. Distribution characteristics of limestone

Limestone is mainly formed in turbulent shallow sea environments and requires warm climate conditions. Its preservation also requires appropriate temperature, humidity, air pressure and a certain stratigraphic structure. Guangxi, Guizhou and eastern Yunnan in China are one of the largest karst areas in the world, and their formations contain huge limestone resources. In addition to the above-mentioned areas, there are also large areas of limestone in Guangdong, Zhejiang, Fujian, Jiangsu, Sichuan basins and mountainous areas in western Hubei.

2. The formation environment of limestone

The formation process of limestone is long, mainly in shallow sea environment. When there is a closed geographical environment (such as a lake basin, lagoon, bay, etc.), the climate conditions are dry, the evaporation of water exceeds the supply, and there is a supply of salt, evaporative deposition will occur.

10. Limestone mountain

The rocks in Funiu Mountain are not limestone.

The Funiu Mountains are huge in scale, with unusually tall and majestic mountains, mainly granite mountains. Among them, the mountains in the northwest section are broad and complete, and the mountains are high and majestic. Then they split towards the southeast, and the mountains gradually become lower and scattered, becoming low mountains and hills. The northwest section of the mountain range is roughly northwest of Baihe, Erlangping and Shuanglong. It is one of the large concentrated distribution areas in Zhongshan in the province.