• Mesa
  • Chuanshan 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.

Chuanying District is under the jurisdiction of Jilin City. Located in the central and western part of the city. It has jurisdiction over 1 provincial economic development zone, 11 streets, 3 towns and 1 township. As of 2010, the total area is 711 square kilometers, of which the urban area is 31.5 square kilometers. The gross domestic product of the ship camp area is 950.97 million yuan (2009), with a population of 490000 (2010). In 2019, it was listed as a national intellectual property rights strong county project demonstration county (district).
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