Morphosculpture of the river Mashey valley (Central Altai)

Complexes of exogenous processes and morphosculptures in the mountain valley of the Mashey river (North Chuya Ridge, Central Altai) are described. 5 cites with different geomorphic structure were distinguished: two – in the river head occupied by glacier, two – in the high mountain part, where Pleistocene trough is transformed intensely by slope, cryogenic and fluvial processes, one – in the low mountain part, where the relics of glacial forms are predominant. On the base of paleo-trough and associate landforms morphometry the reconstruction of paleoglacier Mashey was fulfilled. We ascertain that no Pleistocene moraines exist in the upper part of the valley, and that in Holocene a sharp change of geomorphologic situation took place, which led to accumulation renewal.

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