Late Pleistocene (Würmian) Glaciations of the Caucasus

Gobejishvili, Ramin; Lomidze, Nino; Tielidze, Levan

doi:10.1016/b978-0-444-53447-7.00012-x

Cited by 36 publications

(45 citation statements)

References 1 publication

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“…In the eastern Greater Caucasus some river basins are 10 built on Jurassic sedimentary rocks, which suffer consistent denudation, detrimental to glacier preservation (Gobejishvili et al, 2011). The Elbrus massif contained the least debris cover in the whole investigated area, where the debris cover increased from 1.86%-3.15%-5.54%.…”

Section: Sdc Assessment Using Manual Extents Compared To Red/mid-ir Rmentioning

confidence: 99%

“…In the eastern Caucasus, a large percentage of the debris cover is a result of the geology, as some parts of the eastern Caucasus are Jurassic sedimentary rocks (Gobejishvili et al, 2011;Tielidze, 2017a), and therefore the process of mechanical denudation is more intense. Consequently, this region is characterized by rock glaciers which are not typical for the central and western Caucasus (Fig.…”

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confidence: 99%

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Supraglacial debris cover assessment in the Caucasus Mountains, 1986-2000-2014

Tielidze

Wheate

Kutuzov

et al. 2017

Preprint

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Surpaglacial debris cover plays an increasingly important role impacting on glacier ablation, while there have been limited recent studies for the assessment of debris covered glaciers in the 20 Greater Caucasus mountains. We selected 559 glaciers according to the sections and macroslopes in the Greater Caucasus main watershed range and the Elbrus massif to assess supraglacial debris cover (SDC) for the years 1986, 2000 and 2014. Landsat (Landsat 5 TM, Landsat 7 ETM+, Landsat 8 OLI) and SPOT satellite imagery were analysed to generate glacier outlines using manual and semi-automated methods, along with slope information from a Digital Elevation 25

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Section: Sdc Assessment Using Manual Extents Compared To Red/mid-ir Rmentioning

confidence: 99%

mentioning

confidence: 99%

Supraglacial debris cover assessment in the Caucasus Mountains, 1986-2000-2014

Tielidze

Wheate

Kutuzov

et al. 2017

Preprint

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“…The larger the firn basin is, the longer the glacier is. If the glacier of a certain length corresponds to the feeding area of the modern glacier, it is natural that the feeding area of the old glacier would have formed a glacier of a certain length [24]. This idea can be expressed by a directly proportional dependence formula:…”

Section: Methodsmentioning

confidence: 99%

“…For this purpose, we decided to study these questions using analog method following the Gobejishvili et al, [24] approach. The essence of the analog method is as follows: in case of similar natural conditions (factors), the same process or phenomenon can be studied in one region and apply the obtained information to another region.…”

Section: Methodsmentioning

confidence: 99%

Late Pleistocene and Holocene Glacier Extent in the Georgian Caucasus

Tielidze¹

2017

OJG

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This article presents the information of the Georgian Caucasus glaciation at the Late Pleistocene and Holocene period (~126,000-11,700 calendar years ago). Our primary aim was to numerically reproduce the ice extent deduced from geological and geomorphological mapping. We used the analog method with the 30 m resolution SRTM DEM (Shuttle Radar Topography Mission Digital Elevation Model). In addition, the rates of glaciation of those times are identified based on the stadial moraines and erratic boulders. The current investigation has revealed that in the Late Pleistocene, the central and western Caucasus characterized the highest glaciation, while the eastern Caucasus boasted the lowest glaciated area, and in the southern Georgia's highland glaciation has almost the same form as there is in the Eastern Caucasus today. The longest glaciers were located in the Enguri (Nenskra ~36 km, Mulkhura ~35.1 km, Dolra ~34.5 km), Kodori (Sakeni ~25 km, Klichi ~20 km, Marukhi ~17.3 km) Rioni (Buba ~23 km, Kirtisho ~20.5 km, Jejora ~17.5 km) and Tergi (Devdoraki ~38.5 km, Suatisi ~32 km) river basins. We found, that topography thresholds related to the elevation and hypsometry of individual catchments controlled the gradient of the rate of glacier expansion in the domain at that time.

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“…This vast cirque was a feeding area of the old glciation in Dolra. United ice tongue flowed in the Enguri gorge in Wurm [20].…”

Section: Stady Areamentioning

confidence: 99%

Glaciers Amount and Extent Change in the Dolra River Basin in 1911-1960-2014 Years, Caucasus Mountains, Georgia, Observed with Old Topographical Maps and Landsat Satellite Imagery

Tielidze¹,

Chikhradze²,

Svanadze³

2015

AJCC

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The article presents the changes in the number and area of the Dolra River basin glaciers during the last century in connection with the climate elements. Dolra River basin is located in the southern slope of the Central Caucasus, in the territory of Zemo Svaneti and joins the Enguri River basin, which in its turn is the main center of the contemporary glaciation in Georgia. During the study, we used the 1:42,000 scale topographic maps of the 19th century, which were drawn up during the first topographic survey by using the plane -table surveying

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Late Pleistocene (Würmian) Glaciations of the Caucasus

Cited by 36 publications

References 1 publication

Supraglacial debris cover assessment in the Caucasus Mountains, 1986-2000-2014

Supraglacial debris cover assessment in the Caucasus Mountains, 1986-2000-2014

Late Pleistocene and Holocene Glacier Extent in the Georgian Caucasus

Glaciers Amount and Extent Change in the Dolra River Basin in 1911-1960-2014 Years, Caucasus Mountains, Georgia, Observed with Old Topographical Maps and Landsat Satellite Imagery

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