• Mesa
  • SanYuan District

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.

Sanyuan District (ancient belongs to Shaxian County, Yongan County, Tingzhou Prefecture Guihua County) belongs to Sanming City, Fujian Province. (ancient Yanping Prefecture Shaxian County, Yongan County, Tingzhou Prefecture Guihua County) was an important town in central Fujian in the mid-Ming Dynasty. It is located in the southwest of Sanming City, connected with Meilie District in the east, Yong'an City in the west, Datian County in the south and Mingxi County in the north. Between latitude 26 °5'N and longitude 117 °5'E. The topography of the region tilts from northwest to east and is located in the catchment area between Wuyi Mountains and Daiyun Mountains. Shaxi River Valley Meili Basin is an urban area with an elevation of more than 1500 meters above sea level. Shaxi and other five rivers converge at
Airport In SanYuan District - Sanming Sha County Airport
Sanming Shaxian Airport (Sanming Shaxian Airport, IATA: SQJ, ICAO: ZSSM), located in the North District of Jinguyuan, Shaxian District, Sanming City, Fujian Province, China, about 32 kilometers away from the center of Sanming, is a 4C-level civil transport airport   .
Sanming Shaxian Airport was officially completed and opened to navigation on March 7, 2016; it was named Sanming Shaxian Airport   .
According to information on the airport's official website in June 2019, Sanming Shaxian Airport has a terminal building of T1 (domestic in China) with a total area of ​​11,700 square meters; there is a runway with a length of 2,600 meters and 5 parking spaces   . As of October 2020, 9 domestic cities in China have been opened.  
In 2020, due to the impact of the global epidemic, the passenger throughput of Sanming Shaxian Airport was 249,700, a year-on-year decrease of 2.3%; the cargo and mail throughput was 1,000 tons, a year-on-year increase of 259.2%; the number of takeoffs and landings was 3,000, a year-on-year increase of 5.1% %; respectively ranked 177th, 159th and 190th in China   .
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