1. Geomorphology of the upper Kalguty Basin, Ukok Plateau, Russian Altai mountains
- Author
-
Melaine Le Roy, Lydia V. Zotkina, Ludovic Ravanel, Jean-Jacques Delannoy, Vyacheslav I. Molodin, Philip Deline, Hugues Plisson, Dimitri V. Cheremisim, Catherine Cretin, Jean-Michel Geneste, Environnements, Dynamiques et Territoires de la Montagne (EDYTEM), Centre National de la Recherche Scientifique (CNRS)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry]), Novosibirsk State University (NSU), Ministère de la Culture et de la Communication, De la Préhistoire à l'Actuel : Culture, Environnement et Anthropologie (PACEA), and Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,010504 meteorology & atmospheric sciences ,Geography, Planning and Development ,Structural basin ,010502 geochemistry & geophysics ,01 natural sciences ,lcsh:G3180-9980 ,Archaeological research ,Earth and Planetary Sciences (miscellaneous) ,glacial and periglacial geomorphology ,[SDU.STU.GM]Sciences of the Universe [physics]/Earth Sciences/Geomorphology ,altai mountains ,Geomorphology ,ComputingMilieux_MISCELLANEOUS ,0105 earth and related environmental sciences ,lcsh:Maps ,ukok plateau ,geography ,Plateau ,geography.geographical_feature_category ,Geomorphological mapping ,15. Life on land ,Arid ,Field mapping ,Geology ,geomorphological mapping - Abstract
As part of an archaeological research project, we investigate the geomorphology of the cold and arid study area by combining field mapping with use of orthoimages and DEM. To the north of a broad trunk valley floor, gentle slopes continuously vegetated culminate around 3000 m, while to the south steep slopes reaching to 3500 m are deeply incised and covered mainly by regolith. The basin has been intensively glaciated as evidenced by the till covering the gentler slopes, several morainic complexes, kame terraces and roches moutonnées. The present morphodynamics of this permafrost-affected basin is mainly periglacial, with blockfields, solifluction lobes, patterned ground and rock glaciers on gentle slopes to high-elevated flat terrain, and block slopes and rockfall talus on steeper slopes. Large alluvial fans at the outlet of the steep lateral valleys constrain the anastomosing channel of the Kalguty river. Active braided channels in those valleys evidence seasonal high peak discharge.
- Published
- 2020
- Full Text
- View/download PDF