• Mesa
  • Haixi Mongolian and Tibetan Autonomous Prefecture

A mesa is an isolated, flat-topped elevation, ridge or hill, which is bounded from all sides by steep escarpments and stands distinctly above a surrounding plain. Mesas characteristically consist of flat-lying soft sedimentary rocks capped by a more resistant layer or layers of harder rock, e.g. shales overlain by sandstones. The resistant layer acts as a caprock that forms the flat summit of a mesa. The caprock can consist of either sedimentary rocks such as sandstone and limestone; dissected lava flows; or a deeply eroded duricrust. Unlike plateau, whose usage does not imply horizontal layers of bedrock, e.g. Tibetan Plateau, the term mesa applies exclusively to the landforms built of flat-lying strata. Instead, flat-topped plateaus are specifically known as tablelands.

Haixi Mongolian and Tibetan Autonomous Prefecture, Qinghai Autonomous Prefecture, referred to as Haixi Prefecture, is located in the north of the Qinghai-Tibet Plateau and the west of Qinghai Province, with high terrain in the northwest and low in the southeast, which is a typical alpine and dry continental climate zone; the state has a total area of 300700 square kilometers and has jurisdiction over 3 county-level cities, 3 counties and 1 administrative region; in 2017, the resident population is 515200. Haixi Mongolian and Tibetan Autonomous Prefecture is the Qudi of the Qinghai-Tibet Plateau, with Tibet in the south, Gansu in the north and Xinjiang in the west. It is at the center of the confluence of the four provinces and regions of Qinghai, Gansu and New Tibet, and was once the auxiliary road of the ancient "Silk Road" leading to the Western region. Lanxila optical cable, Qingxin optical cable, Qinghai-Tibet 750 kV AC / DC interconnection line run through the whole territory, Golmud-Lhasa product oil pipeline and Xianning-Lanlan gas pipeline are distributed, Qinghai-Tibet railway and national highway.
Travel Sights In Haixi Mongolian and Tibetan Autonomous Prefecture
Travel Notes In Haixi Mongolian and Tibetan Autonomous Prefecture
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