|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 若尔盖高原全新世气候变化的泥炭记录与加速器放射性碳测年显示文摘对若尔盖高原泥炭沉积的可靠加速器(AMS)~14C测年和分辨率达15~30年夏季风气候代用指标序列的建立,揭示了青藏高原全新世的多次干冷事件.其中较为显著的事件分别为12800,11300,10200,9580, 8900, 6400, 4400, 3700, 2800, 1500 aBP(校正年龄),它们既可与高纬北大西洋浮冰碎屑事件一一对比,又可与低纬海面的一些降温事件相对应.频谱分析表明全新世的高频变化具有百年至千年尺度的准周期,反映了全新世气候的不稳定性以及百年至千年尺度的韵律在中纬度地区同样存在. | 周卫建 卢雪峰 武振坤 邓林 A.J.T.Jull D.Donahue W.Beck | 2001 | 科学通报2001,46,12: | 109 |
| 2 | Peat record reflecting Holo-cene climatic change in the Zoige Plateau and AMS radiocarbon dating显示文摘Through the use of reliable AMS dating of high resolution (15-30 years) peat and the establishment of monsoon climate proxies sequence, we have been able to recognize several cold, dry events in the Tibetan Plateau during the Holocene. The more obvious ones occurred around 12800, 11300, 10200, 9580, 8900, 6400, 4400, 3700, 2800 and 1500 cal. aBP. These events correlate well with both ice rafting events recorded in high latitude North Atlantic Ocean sediment cores and cooling events in the low latitude SST. Spectral analysis indicates high frequency climate variation on centennial-millennial time scale during the Holocene. This further reflects Holocene climate instability and the existence of centennial-millenium scale rhythm in mid latitude areas as well. | ZHOU Weijian LU Xuefeng WU Zhengkun DENG Lin A.J.T.Jull D.Donahue W.Beck | 2002 | Chinese Science Bulletin2002,47,1: | 68 |
| 3 | 新仙女木期沙漠/黄土过渡带高分辨率泥炭记录——东亚季风气候颤动的实例显示文摘通过对气候敏感的沙漠/黄土过渡带中湖沼沉积进行高分辨率的^(14)C年代学和气候代用指标的研究,揭示了东亚季风气候存在着干冷(11.2~10.6kaBP)、湿凉(10.6~10.2kaBP)和干冷(10.2~10.0kaBP)的颤动特征。沙漠/黄土过渡带地处欧洲下风区,通过西风带与极地北大西洋气候相联系。晚冰期上述地区大气和海面温度变化引起西伯利亚~蒙古高压强度的变化,进一步影响东西区域性海-陆气压梯度的增强与减弱。因此,这一时期东亚季风气候这种百年尺度的快速颤动可视为高纬极地大陆气团与太平洋暖湿气团相互作用的写照。 | 周卫建 李小强 董光荣 S.C.Porter M.Stuiver D.Donahue A.J.T.Jull | 1996 | 中国科学(D辑)1996,26,2: | 58 |
| 4 | 末次冰消期东亚和挪威海气候事件的对比显示文摘通过对黄土-古土壤和泥炭剖面的高分辨率~14C年代学以及有机质的δ^(13)C值和有机碳百分含量的研究,揭示了末次冰消期百年尺度温暖-寒冷的东亚季风气候颤动事件及其反映的有意义的降水变率.它们由波令(Bolling13~12.5ka BP),老仙女木(Older Dryas 12.5~11.75ka BP),阿勒鲁德(Allerod 11.75~11.2 ka BP)和新仙女木(Younger Dryas 11.2~10 ka BP)事件构成.其地层结构表现出多种沉积相的变化,反映了气候的不稳定性.这些高频、快速的气候事件可与挪威海海面温度记录的气候事件—一对比.反映了东亚季风气候通过西风带及与其相关的气压系统与极地.高纬地区古气候的遥相关. | 周卫建 安芷生 S.C.Porter D.Donahue A.J.T.Jull | 1997 | 中国科学(D辑)1997,27,3: | 15 |
| 5 | 花粉浓缩物的加速器^(14)C年代测定初探显示文摘在环境敏感带的风积物、湖积物剖面中采集了 1 7个样品 ,建立了适用于风积物中花粉浓缩物提取的实验方法 .将花粉浓缩物的测年结果与某些已知年代样品作了对比研究 ,进行了花粉浓缩物的加速器14 C测年的初步探索 .结果表明 ,在稳定环境下与沉积物同时沉积的花粉测年具有一定的可信度 .它将为改善黄土高原晚更新世以来年代测定提供一条新的可能途径 .同时 ,将14 C测年与野外地质观察相结合 ,提取了该敏感带晚更新世向早全新世转换过程中 | 周卫建 周杰 萧家仪 D.Donahue A.J.T.Jull | 1998 | 中国科学(D辑)1998,28,5: | 6 |
| 6 | Correlation of climatic events between East Asia and Norwegian Sea during last deglaciation显示文摘Using a high resolution 14C chronology, Sl C values and organic carbon content, from loess/paleosol and peat profiles in China, we can demonstrate century scale warm-cold East Asian monsoon paleoclimatic fluctuation events and significant precipitation variability within the last deglaciation. The major climatic events recognized are the Boiling (1 300-12 500 a B. P.), Older Dryas (12 500-11 750 a B. P. ), Allerod (11 750-11 200 a B. P.) and Younger Dryas (11 200-10 000 a B.P. ). The stratigraphic structure of the last deglaciation sediments is characterized by frequent changes in sedimentation phases reflecting climatic instability. These high frequency, rapid climatic events can correlate with fluctuations recorded by sea surface temperatures in the Norwegian Sea. This indicates a pale-oclimate teleconnection between polar, high latitude areas and East Asian monsoon areas through westerlies and the related atmospheric pressure system. | 周卫建 安芷生 S.C.Porter D.Donahue A.J.T.Jull | 1997 | Science China Earth Sciences1997,40,5: | 3 |
| 7 | Preliminary study on radiocarbon AMS dating of pollen显示文摘17 samples were collected from aeolian and lacustrine profiles within the environment sensitive zone of the Loess Plateau, and an experimental method was established which is suitable for pollen extraction from aeolian sediment. A comparative study of pollen dating was carried out using the accelerator mass spectrometry (AMS) 14C dating of known age samples, and then an experiment with the pollen concentrates was performed. The results indicate that pollen that has been deposited simultaneously with sediment in a stable environment can provide reliable ages. This technique will provide a way of improving the chronological framework for the Loess Plateau since the late Pleistocene. The 14C dating was combined with field investigations, and from the geological record within this zone, evidence was extracted of four major monsoon precipitation changes during the transition from the late Pleistocene to Holoeene. | 周卫建 周杰 萧家仪 D.Donahue A.J.T.Jull | 1999 | Science China Earth Sciences1999,42,5: | 1 |
| 8 | A simple estimation method for aggregate government outsourcing显示文摘 | StephenMinicucci John D.Donahue | 2004 | J Pol Anal Manage2004,,3: | 1 |