从Borsog湾Khuvsgul湖的湖泊沉积物推得的蒙古北部全新世水文环境的变化（英文）

作     者：ORKHONSELENGE A MINO K KASHIWAYA K KRIVONOGOV S YAMAMOTO T SAKAGUCHI A NAKAMURA T 

作者机构：Institute of Nature&Environmental TechnologyKanazawa University LLRLInstitute of Nature&Environmental TechnologyKanazawa University Institute of GeologyGeophysics & MineralogySB RAS Department of Earth&Planetary System SciencesHiroshima University Center for Chronological ResearchNagoya University 

出 版 物：《地球环境学报》 (Journal of Earth Environment)

年 卷 期：2011年第2卷第3期

页      面：457-461页

学科分类：070905[理学-第四纪地质学] 0709[理学-地质学] 07[理学] 

基　　金：Grants-in-Aid for Scientific Research from Ministry of Education Science and Culture(Japan)to K.Kashiwaya[(A2)20253002] 

主　　题：sedimentation rate hydro-geomorphology environmental change Holocene Lake Khuvsgul Mongolia 

摘      要：A 13-m long sediment core from Borsog Bay of Lake Khuvsgul,northern Mongolia records hydro-environmental changes during the past 10000 years;three rapid environmental changes(ca.2700 a BP,ca.6000 a BP and ca.8000 a BP based on ^(14)C dates of organic carbon materials) are detected in depth profiles of sediment physical *** changes in the physical properties of the core(grain size,grain density and water content) also suggest three periods of large discharge from outside and three periods of stable input(200-500 cm,800-980 cm and 1050-1200 cm).The sedimentation rates in the stable period are 0.102 cm·a^(-1),0.085 cm·a^(-1) and 0.139 cm·a^(-1),*** periods of large discharge likely correspond to the intervals of the three rapid environmental changes,indicating that there were three rapid and high discharge periods related to melt water and/or heavy rainfall during the past 10000 years in this *** analytical results also show that the physical properties are valuable in reconstructing past hydro-geomorphological fluctuations in the lake-catchment system.