• Mesa
  • Qingyun

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.

Qingyun County, located in the northwest of Shandong Province, belongs to Dezhou City, Shandong Province, with Beijing and Tianjin in the north and Jinan in the south, adjacent to Tianjin, Huanghua and Binzhou seaports, covering an area of 502 square kilometers (2013). Population 310000 (2013). It has jurisdiction over 9 townships. In 2010, Qingyun County achieved a GDP of 9.35 billion yuan, an increase of 12.8%. Investment in social fixed assets reached 7.5 billion yuan, an increase of 29.3%. Total retail sales of consumer goods reached 3.8 billion yuan, an increase of 14 percent. Fiscal revenue exceeded 200 million yuan, an increase of 40.2 percent. Qingyun County has a long history, summer belongs to Yanzhou, Qin belongs to Qi County, Sui Kaihuang six years home county. In 2012, Qingyun County was named as the best example county to improve the living environment in China and the greening model county in Shandong Province. October 2018, enter
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