Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1007/s12665-016-6295-9 |
First geophysical and shallow ice core investigation of the Kazbek plateau glacier, Caucasus Mountains | |
Kutuzov, Stanislav S.1; Mikhalenko, Vladimir N.1; Grachev, Alexi M.1; Ginot, Patrick2,3; Lavrentiev, Ivan I.1; Kozachek, Anna V.4; Krupskaya, Victoria V.5,6; Ekaykin, Alexey A.4,7; Tielidze, Levan G.8; Toropov, Pavel A.9 | |
通讯作者 | Kutuzov, Stanislav S. |
来源期刊 | ENVIRONMENTAL EARTH SCIENCES
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ISSN | 1866-6280 |
EISSN | 1866-6299 |
出版年 | 2016 |
卷号 | 75期号:23 |
英文摘要 | First-ever ice core drilling at Mt. Kazbek (Caucasus Mountains) took place in the summer of 2014. A shallow ice core (18 m) was extracted from a plateau at similar to 4500 m a.s.l. in the vicinity of the Mt. Kazbek summit (5033 m a.s.l.). A detailed radar survey showed that the maximum ice thickness at this location is similar to 250 m. Borehole temperature of -7 degrees C was measured at 10 m depth. The ice core was analyzed for oxygen and deuterium isotopes and dust concentration. From the observed seasonal cycle, it was determined that the ice core covers the time interval of 2009-2014, with a mean annual snow accumulation rate of 1800 mm w.eq. Multiple melt layers have been detected. delta O-18 values vary from -25 to -5%. The dust content was determined using a particle sizing and counting analyzer. The dust layers were investigated using scanning electron microscopy and X-ray diffraction analysis. Dust can be separated into two categories by its origin: local and distant. Samples reflecting predominantly local origin consisted mainly of magmatic rocks, while clay minerals were a characteristic of dust carried over large distances, from the deserts of the Middle East and Sahara. The calculated average dust flux over three years at Kazbek was of 1.3 mg/cm(2) a(-1). Neither delta O-18 nor dust records appear to have been affected by summer melting. Overall, the conditions on Kazbek plateau and the available data suggest that the area offers good prospects of future deep drilling in order to obtain a unique environmental record. |
英文关键词 | Mountain glaciers Ice cores The Caucasus Mt. Kazbek GPR Oxygen isotopes Dust content |
类型 | Article |
语种 | 英语 |
国家 | Russia ; France ; Georgia |
收录类别 | SCI-E |
WOS记录号 | WOS:000391380300024 |
WOS关键词 | ASIAN MONSOON ; MT. ELBRUS ; RECORD ; TEMPERATURE ; CLIMATE ; COLD ; SNOW ; EMISSIONS ; CHEMISTRY ; HISTORY |
WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
来源机构 | French National Research Institute for Sustainable Development |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/192708 |
作者单位 | 1.Russian Acad Sci, Inst Geog, Dept Glaciol, 29 Staromonetniy Pereulok, Moscow 119017, Russia; 2.OSUG, IRD UGA CNRS, Grenoble, France; 3.UGA CNRS, LGGE, Grenoble, France; 4.Arctic & Antarctic Res Inst, 38 Beringa St, St Petersburg 199397, Russia; 5.Russian Acad Sci, Inst Geol Ore Deposits Petrol Mineral & Geochem, 35 Staromonetniy Pereulok, Moscow 119017, Russia; 6.Moscow MV Lomonosov State Univ, Fac Geol, Dept Engn & Ecol Geol, GSP-1, Moscow 119992, Russia; 7.St Petersburg State Univ, Inst Earth Sci, St Petersburg 199178, Russia; 8.Javakhishvili Tbilisi State Univ, Vakhushti Bagrationi Inst Geog, Dept Geomorphol, 6 Tamarashvili St, GE-0177 Tbilisi, Georgia; 9.Moscow MV Lomonosov State Univ, Fac Geog, Dept Meteorol & Climatol, GSP-1, Moscow 119992, Russia |
推荐引用方式 GB/T 7714 | Kutuzov, Stanislav S.,Mikhalenko, Vladimir N.,Grachev, Alexi M.,et al. First geophysical and shallow ice core investigation of the Kazbek plateau glacier, Caucasus Mountains[J]. French National Research Institute for Sustainable Development,2016,75(23). |
APA | Kutuzov, Stanislav S..,Mikhalenko, Vladimir N..,Grachev, Alexi M..,Ginot, Patrick.,Lavrentiev, Ivan I..,...&Toropov, Pavel A..(2016).First geophysical and shallow ice core investigation of the Kazbek plateau glacier, Caucasus Mountains.ENVIRONMENTAL EARTH SCIENCES,75(23). |
MLA | Kutuzov, Stanislav S.,et al."First geophysical and shallow ice core investigation of the Kazbek plateau glacier, Caucasus Mountains".ENVIRONMENTAL EARTH SCIENCES 75.23(2016). |
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