Geography and Geomorphological and Lithological Characteristics of the Aralkum
2011; Springer Nature; Linguagem: Inglês
10.1007/978-3-642-21117-1_3
ISSN2196-971X
AutoresG. V. Gel’dyeva, S-W. Breckle, B. V. Gel’dyev,
Tópico(s)Marine and environmental studies
ResumoThe Aralkum is a new continental area that is governed by geohalomorphic as well as by aeolian processes. The vast-plain open sea bottom is not totally plain: it exhibits old submarine channels, hills, ridges, sand splits and tombolas, which are now overformed. The desiccated soil sediments along the coast and the forms of the primary relief play an important role in the formation and development of the present landscape structure in the Aralkum. The north and the west of the Aralkum are limited by high structural denudation plateaus of Turgay and Ustyurt, in the east by the sand deserts Priaralski Karakum and Kyzylkum and in the south by the Amu Darya delta. The elevation amplitude of the Aralkum is now between 25 and 58 m above sea level, including the old and new Aral terraces. Ninety-seven percent of the Aralkum area is situated in the big Aral depression south of the former Kokaral peninsula (and including it) and 3% is situated in the small Aral depression around the Small Aral Sea. The Aralkum area includes the former islands of Kokaral, Vozrozhdeniya and Barsa-Kelmes (approximately 2,300 km2).
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