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Anonymous users2024-02-11In terms of latitude, it should be a warm temperate zone, but in terms of climate, it should actually be considered a medium temperate zone.
Qaidam Basin is a plateau basin, located in the northwest of Qinghai Province, mainly in Haixi Mongolian and Tibetan Autonomous Prefecture, is a closed basin surrounded by Kunlun Mountain, Altun Mountain, Qilian Mountain and other mountain ranges, between 90°16 e-99°16 e, 35°00 N-39°20 N.
The warm temperate zone is roughly between 32° and 43° north latitude, so the Qaidam Basin should be a warm temperate zone. However, the Qaidam Basin is located in the northern part of the Qinghai-Tibet Plateau, with an average annual temperature of less than 5, and the temperature changes drastically, with an absolute annual temperature difference of more than 60, and a daily temperature difference of about 30, which can drop to below 0 at night in summer. Climatically speaking, it can only be regarded as a mid-temperate zone.
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Anonymous users2024-02-10The Qaidam Basin, one of the three major inland basins in China, is a closed huge intermountain fault basin and one of the four major basins in China. [1] It is located in the northwest of Qinghai Province, northeast of the Qinghai-Tibet Plateau, mainly in Haixi Mongolian and Tibetan Autonomous Prefecture. to the northwest and north to the Altyn Mountains; southwest to the Kunlun Mountains; In the northeast, there are the Qilian Mountains, covering an area of about 240,000 square kilometers [2].
The inland is rich in iron ore, copper ore, tin ore, salt ore and other minerals, so it is called "cornucopia".
Climatically, it is located in the continental climate of the North Temperate Plateau.
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Anonymous users2024-02-09The Qaidam Basin has a plateau continental climate, which is mainly characterized by aridity. Annual precipitation decreases from 200 mm in the southeast to 15 mm in the northwest, with an average annual relative humidity of 30-40% and a minimum of less than 5%. The average annual temperature of the basin is below 5, and the temperature changes drastically, with the absolute annual temperature difference reaching more than 60, and the daily temperature difference often around 30.
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Anonymous users2024-02-08The Qaidam Basin is located in the northwest of Qinghai Province, northeast of the Qinghai-Tibet Plateau, mainly in Haixi Mongolian and Tibetan Autonomous Prefecture.
to the northwest and north to the Altyn Mountains; southwest to the Kunlun Mountains; There are Qilian Mountains in the northeast, covering an area of about 240,000 square kilometers.
Qaidam is not only the world of salt (many salt lakes and swamps in the southeast), but also rich in oil, coal, and a variety of metal deposits, such as the oil of Lenghu, the coal of Yuka, and the lead-zinc ore of Xitieshan, etc., are very famous, so the Qaidam Basin has the reputation of "cornucopia".
Geological formations
The basement of the basin is a series of Precambrian crystalline metamorphic rocks. The terrain slopes slightly from northwest to southeast, and the altitude gradually drops from 3,000 meters to about 2,600 meters. The landform is distributed in concentric rings, from the edge to the center, and the alluvial gravel fan (Gobi), alluvial-alluvial silty plain, lacustrine-alluvial silt-clay plain, and lacustrine silt saline plain change in a regular manner.
In the low-lying areas, salt lakes and marshes are widespread.
The inner edge of the Gobi belt in the northwest of the basin is relatively high, and the hills below 100 meters are clustered and bundled. The southeastern subsidence of the basin is severe, and the alluvial and lacustrine plains are vast, and the main lakes such as South and North Horusun Lakes and Dabsun Lakes are distributed here. There are large swamps along the lower reaches of the Qaidam River, the Surin Gol River and the Golmud River, as well as around the lake.
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Anonymous users2024-02-07Qaidam Basin in Qinghai Province.
Qaidam Basin is a plateau basin, mainly located in Haixi Mongolian Tibetan Autonomous Prefecture. It is a closed basin surrounded by the Kunlun Mountains, the Altun Mountains, and the Qilian Mountains. The basin is slightly triangular, about 800 kilometers long from east to west and about 300 kilometers wide from north to south, with an area of 25,768 square kilometers (similar to the Songliao Basin in Northeast China), and is one of the three major inland basins in China.
The Qaidam Basin has a plateau continental climate, which is mainly characterized by aridity. The annual precipitation is reduced from 200 mm in the southeast to 15 mm in the northwest, and the annual relative humidity is 30-40, and the minimum can be less than 5. The average annual temperature of the basin is lower than 5, and the temperature changes drastically, the absolute annual temperature difference can reach more than 60, the daily temperature difference is usually about 30, and the summer night Huimin can drop to below 0.
The wind is strong, and the wind above level 8 can reach 25-75 days, and the west can even reach 40 meters and strong winds, and the wind erosion is extremely strong.
Introduction to the geological structure of the Qaidam Basin:
The basin is based on the Precambrian crystalline metamorphic rock series. The terrain slopes slightly from northwest to southeast, and the altitude gradually drops from 3,000 meters to about 2,600 meters. The topography is distributed in concentric rings, from the edge to the center, the alluvial gravel fan-shaped ground (Gobi), the alluvial-alluvial silty plain, the lacustrine-alluvial bank silty clayey plain, and the lacustrine silt saline plain change periodically in turn.
Salt lakes and swamps are widely distributed in low-lying areas.
The inner margin of the Gobi Belt in the northwest of the basin is relatively high, and the Longgang Hills below 100 meters are clustered. The southeast subsidence of the basin is violent, and the alluvial and lacustrine plains are vast. Major lakes such as Lake Holusun in the south, Holusun Lake in the north, and Lake Dabson are located here.
There are large swamps along the lower reaches of the Qaidam River, Surin Gol River, Golmud River and around the lake.
The above content reference: Encyclopedia - Qaidam Basin.
Yes! Brother, in fact, the underground is not what we think. **There are oil fields, all connected, like underground rivers. I didn't find out that it was because we all drilled at a certain depth, and we couldn't get to the depth that we had.
The Tarim Basin, located in the southern part of Xinjiang, China, is the largest inland basin in China. The basin is located between the Tien Shan, Kunlun and Altun Mountains.
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