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| 1 | 西藏台错沉积记录与更新世晚期-全新世气候变化显示文摘西藏西部台错湖T1阶地的两个剖面沉积中,除下部10余厘米含炭化植物和50~70cm处为暗色碳酸盐粘土及粘土外,中、上部全系粘土碳酸盐层,含丰富的介形类和轮藻类。据碳酸盐、介形类、轮藻类的碳、氧稳定同位素值与微体古生物群落生态特征等提供的环境气候变化指标,指示该区距今41.4~4.5 ka BP间气候变化为:在41.4~26.2kaBP气候较湿润;26.2~25.5 ka BP偏暖稍干;25.5~22.5 ka BP气候暖湿;22.5~21.0 ka BP气候偏冷湿;20.5~17.5 ka BP气候骤冷、偏湿,反映本区处于末次冰期盛冰期;17.5~16.0kaBP偏冷偏干;16.0~11.8kaBP气候偏暖湿,为全球间歇性暖事件的响应;11.8~10.4 ka BP气候较冷干,大致相当于新仙女木期,10.4 ka BP气温开始回升;10.4~9.4 ka BP气候偏暖湿;9.4~8.5kaBP气候呈现短暂暖湿颤动;8.5~7.9 ka BP气候偏干冷,为冰后期强烈降温偏干事件;7.8~6.3kaBP气候偏暖湿;6.3~4.5 kaB P气候趋向冷干,4.5 ka BP记录了晚更新世晚期以来最大的干燥期。 | 郑绵平 刘俊英 庞其清 马志邦 王海雷 马妮娜 | 2012 | 地质学报2012，86，1： | 12 |
| 2 | A Late Quaternary Climate Record Based on Multi-Proxies Analysis from the Jiaochang Loess Section in the Eastern Tibetan Plateau,China显示文摘我们比较了稳定的碳从在东方西藏的高原的 Jiaochang 的黄土横断的同位素的记录,跨越最后 ~2 1,000 年,与多为成土作用,包括的磁性的危险性,泥土部分, Fe_d/Fe_t 比率,碳酸盐和总数代理数据器官的碳内容,为了探查δ^( 13 )的机制, C 在东方西藏的高原有机物和迟了的第四级的气候变化珍视。我们的结果显示在δ ^(13 ) 之间没有简单关系有机物和夏天季风变化的 C。在 C 有机物珍视的δ ^(13 ) 的变化(根据到 C_4 植物的 C_3 的比率) 从在温度,干旱和大气的 pCO_2 之中的相互作用的结果铺平。更干燥的气候和更低的大气的 pCO_2 水平贡献积极的碳同位素的旅行,当时同位素的旅行是的否定的碳更低的温度的结果和增加的大气的 pCO_2 水平。另外,我们的结果暗示西藏的季风可以在东方西藏高原在气候系统起一个重要作用,它明确地在那个区域反映经常变化的气候。结果在两个上提供新卓见进强迫的机制有机物和本地气候系统的δ ^(13 ) C 值。 | BAI Song TANG Ya WANG Chengshan HUANG Chengmin | 2007 | Acta Geologica Sinica(English Edition)2007，81，6： | 5 |
| 3 | Climate Reconstruction based on Pollen Analysis in Inner Mongolia, North China from 51.9 to 30.6 kaBP显示文摘The palynomorph assemblage of lake sediments younger than 51.9 kaBP from Wulagai Gobi in Inner Mongolia was analyzed to reconstruct the vegetation and climate.From 51.9 to 30.6kaBP,the vegetation was arid to semi-arid grassland with only slight changes.According to the palynomorphs,trees and shrubs were very rare.The large number and diversity of algae indicate the presence of a lake.Quantitative climatic conditions were reconstructed using the Best Analogues Method.The results indicate that the annual mean temperature was higher than that at present.The combination of temperature and annual precipitation suggests a change in the climate from cool dry to warm dry and then cool humid.Our results show that the annual precipitation values were mostly higher than that at present but were lower than 400 mm.It infers that the study area was already within the arid to semi-arid regions but with a stronger influence of the summer monsoon during 51.9to 30.6 kaBP than at present.With slight differences mainly in time scale,the changing trend of the annual temperature curve is consistent with the other climatic records from Antarctica,Greenland,Hulu Cave(East China),and the Tibetan Plateau during the last glacial period.From 30.6 kaBP to present,very few palynomorphs were detected in the samples.Hence,no information about the vegetation and climate could be extracted.Combined with other studies during Late Pleistocene,we presume that the reason for the lack of pollen during this period was caused by an abrupt temperature fall after 30.6 kaBP or that the lacustrine conditions were unsuitable for pollen deposition.It was probably incurred by the oxidation on land prior to deposition.But for those samples only with algae,it might be caused by the fact that algae could finish their life history in a very short time in a seasonal lake. | LI Suping David K.FERGUSON WANG Yong LI Jinfeng YAO Jianxin | 2013 | Acta Geologica Sinica(English Edition)2013，87，5： | 4 |
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