已为您找到该学者19条结果 成果回收站
冯兆东
,-0001,():
-1年11月30日
-
29浏览
-
0点赞
-
0收藏
-
0分享
-
61下载
-
0
-
引用
【期刊论文】Holocene abrupt climate shifts recorded in Gun Nuur lake core, northern Mongolia
冯兆东, WANG Weiguo, FENG Zhaodong, LEE Xinqing, ZHANG Hucai, MA Yuzhen, AN Chenbang & GUO Lanlan
Chinese Science Bulletin 2004 Vol. 49 No.5 520-526,-0001,():
-1年11月30日
A continuous 7.44 m lake core was successfully drilled at Gun Nuur Lake, northern Mongolia, and analyses on environment magnetic parameters, organic matter content and organic δ13C were conducted in an attempt to retrieve the Holocene chronosequence of climatic changes based on 6 AMS 14C dates. We found that the Holocene climate in northern Mongolia has been alternating between cold (or cool)/wet conditions and warm/arid conditions, and also punctuated with a series of abrupt climate shifts. The abrupt climate shifts occurred around 1750, 2800, 4000, 5200, 7200, and 9200 aBP (14C age), being chronologically correlative to those abrupt climatic events recorded in the highlatitude North Atlantic Ocean. The correlation indicates that the climatic changes in northern Mongolia were linked with those in the North Atlantic Ocean probably via the North Atlantic Oscillation-affected westerly winds. The strength and position of westerly winds might have modulated the Siberian-Mongolian high pressure system (winter monsoon), directly influencing the climate in China.
Mongolian Plateau,, Holocene,, Gun Nuur Lake,, abrupt climatic event.,
-
63浏览
-
0点赞
-
0收藏
-
0分享
-
51下载
-
0
-
引用
冯兆东
,-0001,():
-1年11月30日
-
29浏览
-
0点赞
-
0收藏
-
0分享
-
40下载
-
0
-
引用
冯兆东
,-0001,():
-1年11月30日
-
57浏览
-
0点赞
-
0收藏
-
0分享
-
37下载
-
0
-
引用