The Eastern Arctic Seas Encyclopedia

2016 Edition
| Editors: Igor S. Zonn, Andrey G. Kostianoy, Aleksandr V. Semenov

Chukchi Highlands

Reference work entry

Chukchi Highlands – located between the Chaunskaya Guba and the Bering Strait. They occupy the northern part of the Chukchi Peninsula, Chukotka Autonomous Okrug, Russia. They are 450 km in length and up to 1,843 m in height. They include ridges of different spatial orientation: Shelagsky, Ekvyvatansky, Iskatel, Pegtymelsky, Chentalsky, etc.; their height reach 500–1200 m with the maximum rising up to 1,600 m. The relief is characterized by flat tops. They are a system of heavily dissected lowlands and middle ranges and arrays. The northern ridges are composed mainly of sandstones and shales and cut granites; the south is dominated by volcanic deposits. There are deposits of tin, mercury, and coal. The climate is harsh. The Ch.H. is a watershed drainage basin of the Arctic and Pacific Oceans. In the lower slopes, there is mountain tundra; the upper slopes are an Arctic mountain desert.

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