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«IZVESTIYA IRKUTSKOGO GOSUDARSTVENNOGO UNIVERSITETA». SERIYA «NAUKI O ZEMLE»
«THE BULLETIN OF IRKUTSK STATE UNIVERSITY». SERIES «EARTH SCIENCES»
ISSN 2073-3402 (Print)

List of issues > Series «Earth Sciences». 2017. Vol. 20

Microrelief Formation in the Baikal Region

Author(s)
S. A. Makarov
Abstract
The paper considers the issues of micro-relief formation under the influence of various relief-forming factors which are divided into fixed (geological and geomorphologic), slow varying (climatic, geocryological, hydrogeologic, biotic, and soil-forming) and rapidly varying (meteorological, seismic, and anthropogenic). Their significance can be assessed qualitatively from high to low.
The micro-relief has different formation duration from seconds to tens of thousands years. Seismogenic deformation, landslip cone and root inrush trees are generated at rapid-fire pace, thousands and tens of thousands years are spent on the formation of rock glaciers and hummock-and-hollow micro-relief. The form retention period amounts from several to the tens of thousands years. An important feature is the period of micro-relief formation, which can be obtained by various methods: dendrochronological, radiocarbon, archaeological, etc. The formation period of some microforms was sometimes observed directly and recorded in the literature sources. They are formed often during catastrophic events. Early formation of trampled paths and aeolian ridges is associated with anthropogenic activity and correlated with historical and archaeological evidence.
Keywords
micro-relief, relief-forming factors, formation duration, retention period, age-dating techniques, mountain-taiga zone, the Baikal region
UDC
551.4(571.5)
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