Holocene sedimentary records from Lake Borsog, eastern shore of Lake Khuvsgul, Mongolia, and their paleoenvironmental implications

被引：18

作者：

Orkhonselenge, A. ^{[1
]}

Krivonogov, S. K. ^{[2
,3
]}

Mino, K. ^{[1
]}

Kashiwaya, K. ^{[1
]}

Safonova, I. Y. ^{[2
,3
]}

Yamamoto, M. ^{[1
]}

Kashima, K.

Nakamura, T. ^{[4
,5
]}

Kim, J. Y. ^{[2
]}

机构：

[1] Kanazawa Univ, Inst Nat & Environm Technol, Kanazawa, Ishikawa 9201192, Japan

[2] Korea Inst Geosci & Mineral Resources, Taejon 305350, South Korea

[3] Russian Acad Sci, Inst Geol & Mineral, Siberian Branch, Koptyuga Ave 3, Novosibirsk 630090, Russia

[4] Kyushu Univ, Dept Earth & Planetary Sci, Fukuoka 8128581, Japan

[5] Nagoya Univ, Ctr Chronol Res, Nagoya, Aichi 4648602, Japan

来源：

QUATERNARY INTERNATIONAL | 2013年 / 290卷

关键词：

NORTH CENTRAL MONGOLIA; CLIMATE-CHANGE; RADIOCARBON AGE; DIATOM RECORDS; CENTRAL-ASIA; HOVSGOL; VEGETATION; POLLEN; BAIKAL; EVOLUTION;

D O I：

10.1016/j.quaint.2012.03.041

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

This paper presents new sedimentological, geochronological and diatom data from a 13-m core of sediment from Lake Borsog, a former bay of Lake Khuvsgul (also known as Hovsgol and Khubsugul) in northwestern Mongolia. Lake Borsog was separated from Khuvsgul during the early stages of a post-glacial transgression and possesses a high-resolution record of the Holocene. The data show three short events of higher-rate sedimentation at 7.4-7.1, 4.8-4.5, and 1.0-0.9 ka cal. BP, which are possibly related to lake level drops, reduction of lake area, progradation of the delta of the Borsog River and higher erosion of the exposed lake shores. The drops in lake level match the previously documented drops of the level of Lake Khuvsgul at ca. 7.2-7.0, 4.5-4.1 and 2.1-0.5 ka cal. BP, suggesting continued mutually-related and climatically-controlled evolution of both lakes after their separation. (c) 2012 Elsevier Ltd and INQUA. All rights reserved.

引用

页码：95 / 109

页数：15

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