What is the largest and highest plateau in the world?

The highest plateau in the world is of course the Qinghai-Tibet Plateau in China. The Qinghai-Tibet Plateau occupies about a quarter of China's land area, with an average elevation of over 4,000 meters. It is the highest and most complicated plateau in the world. The Qinghai-Tibet Plateau has an extremely important influence on the evolution of atmospheric circulation in China, Asia and even the northern and southern hemispheres, directly affecting the formation and evolution of weather and climate such as drought and flood in China. Therefore, it is of great significance to study the influence mechanism and evolution law of Qinghai-Tibet Plateau on China's weather and climate for improving the accuracy of China's disastrous weather forecast.

The largest plateau in the world is the Brazilian Plateau. The Brazilian Plateau is located in the east of South America, between the Amazon Plain and the La Plata Plain, covering an area of more than 5 million square kilometers. Brazil platform is its structural foundation, which is mainly composed of ancient basement rocks such as granite, gneiss, schist, phyllite and quartzite. The terrain inclines from southeast to northwest, and the surface is uneven, and most areas are quasi-plains. Most areas are 600 ~ 900 meters above sea level, the southeast coastal mountainous area is over 1200 meters, and the highest peak is 2890 meters above sea level. Due to the recent continuous rise, the edge of the plateau has formed a cliff slope with different weights, and there is a steep Brazilian cliff facing the Atlantic Ocean on the southeast edge. Rivers originating in the plateau flow through cliff slopes, forming many rapids and waterfalls. Iguazu Waterfall is 3-4 kilometers wide and 65-85 meters high. It is one of the world famous waterfalls. The northern plateau is tropical, rainy in summer and dry in winter, and most areas are occupied by tropical savanna. South across the subtropical zone, the precipitation season is evenly distributed, and it is rich in South American fir. Brazil Plateau is rich in mineral resources, such as iron, manganese, lead, zinc, chromium, nickel, tin, timely crystal and mica. The "Four Corners of Iron Mine" with Itabila as the center is a world-famous large-scale iron mine with high quality.