Maimecha River
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Position of Maimetscha in the catchment area of the Chatanga
Template: Infobox River / Obsolete
The Maimetscha (Russian Маймеча, also Медвежья, Medweschja, "Bear River ") is an approximately 650 km long, right-sided or southern tributary of the Cheta in Putoranagebirge and in the Taimyrsenke, each in the north of the Krasnoyarsk region of Siberia, Russia (Asia).
Course
The Maimetscha arises in the east of Putoranagebirges, the northwestern part of the Central Siberian Uplands. You entfließt the small Arylachsee ( 643 m), which lies in a narrow glaciated valley. The surrounding table mountains are in the north to 1331 m and those in the south to 1395 m high.
Initially, the Maimetscha flows eastwards through the small Suolasee which is among others from the stream Orto- Jurjach, and then northeastward through the small Chamyrsee (622 m), empties into the creek as the Chamyr - Jurjach. These streams plunge over waterfalls down the steep mountain slopes.
From then runs the Maimetscha in the northeast foothills of Putoranagebirges in which they (593 m) flows around the small Turukesee. Tundra landscapes through in a soon -widening, but mostly steep and deep valley in predominantly northerly direction She makes many meanders ( meanders ). In its lower reaches it reaches the Taimyrsenke extending between the southern and the northern Putoranagebirge Byrrangagebirge, the central part of the North Siberian Lowland.
Finally, the Maimetscha flows about 120 km south-west and above the village Chatanga or about 6 km north-east and below the village situated on the Chatanga Katyryk to 5 m height in the Cheta, the beneath it flows about 143 km to Chatanga.
Origins and upper reaches of the river are on the territory of the former Autonomous Okrug Evenk, middle and lower reaches of the former on the Taimyr Autonomous Okrug.
Geology
The Maimetscha flows through the central part of the distribution of the Siberian Traps, a vast flood basalt area, which originated around the Permian - Triassic boundary 250 million years ago. The volcanic rocks in this area have a thickness of up to 3000 meters. After the river that there widespread pikritische volcanic rock Meimechit was named (English Meimechite, also Meymechite, Maymechite; Russian Маймечит, Maimetschit ).
Catchment and inflows
The catchment area of Maimetscha is 26.5 thousand km ². Its tributaries include Jangissa, Mirjuka, Ileme, Kungtykachi, Ambardach, Kogotok and Delikan from left and Tschigidy and Tschonko from the right.
Hydrography and hydrology
The mean annual runoff of Maimetscha is 285 m³ / s The spring flood begins with snowmelt in late May and lasts through June on. In the summer months to September there may be precipitation -induced floods. From September to May, when it is covered by ice, the river carries little water. He is in estuary near more than 300 m wide and 5 m deep, and the flow rate is there 0.3 m / s
Use and infrastructure
The Maimetscha is navigable on the lower reaches, but not listed in the list of inland waterways.
The -carrying area is uninhabited; close to the river as well as its entire catchment area there are no towns. Accordingly, any transport infrastructure is missing. A few miles above the mouth is located on the right bank of the Cheta Katyryk the village, which belongs to the rural community of Chatanga Rajons Taimyrski. The source of Maimetscha is closest to the 150 km distant southeasterly direction Jessei settlement of Rajons Ilimpijski, part of the Evenki Nationalrajons.