Furthermore, the east Asian monsoon climatic instability during the last deglaciation has been discussed. The significant variability within monsoon precipitation events during the last deglaciation event or even Younger Dryas id related to the interaction between cold air mass from the Siberian-Mongolian high pressure zone with warm, humid air masses from the ocean.

與西北歐和極地北大西洋相比較91在线精品，東亞末次冰消期尤其是新仙女木季風(fēng)降水的有意義的變率與西伯利亞—蒙古高壓強(qiáng)弱的變化所導(dǎo)致的內(nèi)陸冷氣團(tuán)與來自海洋的暖濕氣團(tuán)的相互作用有關(guān)欧美一级人与嘼视频免费。

Three preliminary conclusions could be approached as follows:(1) SST changes were distinctively characteristic of stepwise fluctuations. A warming trend during the last deglaciation was punctuated by a slightly cooling event which corresponded to the Younger Dryas. The Holocene episode could be divided into three phases of warming, continuously high temperature and cooling.(2) Two remarkable cooling records were documented around 4 kaBP and 1.5 kaBP after the megathermal of the Holocene.(3) Comparison between time series of MD05-2904 diatom R SST index and stalagmite δ^18O results from Dongge Cave, Guizhou Province suggested that changes in the East Asian Monsoon climate is synchronous with variations in the SST in the northern SCS since the last deglaciation and they might have a close correlation with each other

結(jié)果表明：(1)南海北部15 kaBP以來表層海水溫度呈現(xiàn)明顯的階段性波動(dòng)特點(diǎn)人人妻人人干白浆，即末次冰消期氣候轉(zhuǎn)暖過程中视频无码在线看，12.9~11.5 kaBP前后溫度略有下降欧美老妇BBB浓毛乱，與新仙女木事件對應(yīng)外国黄色视频九九，全新世南海北部氣候依次經(jīng)歷了升溫期、高溫期和降溫期3個(gè)變化階段99riav成年人视频网站免费观看；(2)全新世大暖期鼎盛期結(jié)束后91精品一区在线观看，南海北部海水溫度階段下降，兩次明顯降溫分別發(fā)生于4 kaBP前后和1.5 kaBP前后a级片你懂；(3) MD05-2904孔硅藻R值時(shí)間序列曲線與董哥洞D4石筍δ^18O曲線對比表明成熟男女性满足视频，南海北部表層海水溫度變化與末次冰消期以來東亞季風(fēng)強(qiáng)度變化關(guān)系較為密切。

The cold event around 10900～10050, was corresponded to the Younger Dryas before the end of Late Glacial Period.

在晚冰期結(jié)束前尤物视频网站免费，大約10900～10050aBP亚洲欧美强伦一区，是一個(gè)典型的冷事件黄片香蕉，相當(dāng)于Younger Dryas，其內(nèi)部存在次一級干—濕波動(dòng)久久精品国产999久久久。

The NP95 1 well recorded the Heinrich event 1, Younger Dryas cold event and Bolling Allerod warm period, and the Heinrich event 1 occurred at 14.3kaB.P., Younger Dryas occurred at 11.7～10.3kaB.P..

NP95－1柱樣較好地記錄了Heinrich1事件91最新国产中文字幕、新仙女木事件以及波令－阿羅德暖期，其中Heinrich1事件發(fā)生于14.3kaB.Pwww色视频操13。色综合热无码热国产，新仙女木冷期為11.7～10.3kaB.P。国产办公室毛片高潮A片，10.3kaB.P久久毛片免费全部播放无码。

D wet phase and the cold and dry Younger Dryas event were recorded based on changes in some characteristic species. However, the boundary between Younger Dryas and Holocene in diatom record is not clear.

同時(shí)，根據(jù)硅藻組合中特征種的變化久久riav25.co，也可以清楚地界定出波令－阿勒羅德期和新仙女木事件欧美一级情欲视频，但是全新世的底界并不明顯。

Although significant uncertainties remain about both the cause and the scale of the impact of these abrupt climatic events, there is growing general knowledge of change process in climate during the past 13 000 years based on the studies of some important rapid climatic oscillations, such as a cold and dry event near the middle of the last interglacial, Dansgaard-Oeschger cycles, Heinrich events and Younger Dryas event during the last glacial and some cooling events during the Holocene.

盡管末次間冰期以來這些數(shù)百年－千年時(shí)間尺度氣候突變事件的成因和影響范圍還存在明顯的不確定性美女黄色福利视频，但已從諸如末次間冰期(MIS 5e)中期的干冷事件、末次冰期的Dansgaard-Oeschger旋回jiuse901、Heinrich事件和Younger Dryas事件以及發(fā)生在全新世冰后期的一些降溫事件的研究中欧美日韩国产中文在线专区视频。獲得對過去130ka來氣候變化過程總體上的認(rèn)識知理解。

At last. on the basis of comprehensive studies of the glacial, lake, periglacial phenomena .palaeosols and paleontology in the research areas. the late stadial of the Last Glaciation can be divided into three periods: the early phase, 25000-20000a. B. P.. with the cold and wet climatic conditions; the middle phase, the full of last glacial maximum. 20000-16000a. B. P., with the cold and dry climatic conditions; and the late phase, 16000 10000a. B.P., with the warm and dry climatic conditions besides the Younger Dryas event.

最后欧美日韩综合网址，根據(jù)對研究區(qū)的冰川精品拍拍、湖泊、冰緣現(xiàn)象全球的偷拍各种视频网站、古土壤和古生物等在末次盛冰期中的發(fā)育欧美视频在线观看图片小说、演化狀況的綜合分析，把末次盛冰期大致劃分為三個(gè)階段：早期嫩草爱爱视频，25000-20000a.B.P一级毛片出来。，氣候條件主要表現(xiàn)為冷濕91P0RNY大屁股人妻；中期日本免费一级二级视频网站，20000-16000a.B.P。日韩精品无码9p，氣候條件主要表現(xiàn)為冷干三级黄片三级黄片三级黄片三级；晚期16000-10000a.B.P，氣候條件主要表現(xiàn)為溫干影音先锋AV资源网无码,国产v，但Younger Dryas事件也有反映igao999视频网为爱寻找刺激。

Three short geomagnetic excursions, the Go thenburg, Mono Lake and Mungo in the Brunhes Positive Polarity period, were revealed based on the studies of magnetostratigraphy, susceptibility and δ^18O of sediments in core WP 92-5 from the central temperature area of the Western Pacific Warm Pool, and the ages of them are 12.1--11.3 kaBP, 25.0--24.0 kaBP, and 31.0--28.0 kaBP respectively. Furthermore, the Younger Dryas and Heinrich cold events were also discovered in this core by the susceptibility record.

通過西太平洋暖池溫區(qū)中心WP92－5柱樣沉積物磁性地層學(xué)、磁化率和δ^18O等測試與分析99久久久久，獲得了布容正極性期內(nèi)哥德堡国产精品无码免费专区、莫諾湖（Mono Lake和蒙哥（或Maelifell3個(gè)短暫的地球磁場漂移美女黄片毛片在线看，它們發(fā)生的時(shí)間約12.1-11.3，25.0-24.0和31.0-28.0kaBP天天射av；并從該柱樣的磁化率記錄中發(fā)現(xiàn)Younger Dryas和Heinrich冷事件沉積層黄色色色色色色色网站。

The achievements have been made such as the records revealed by climatic proxies,show the instability of the East Asian monsoon climates and warm phases; a short term warm event and a cold reversal before the termination of the penultimate; cold Henrich fingerprint in lake sediments of the Tibetan Plateau; the instability of oxygen isotope stage 5e and Holocene climates; the spatial variability of East Asian monsoon precipitation during the Younger Dryas and the increased variability of the recent centennial East Asian monsoon precipitation.

發(fā)現(xiàn)在倒數(shù)第二次冰期結(jié)束前一次持續(xù)時(shí)間非常短暫的氣候溫暖事件和寒冷回返事件，發(fā)現(xiàn)我國青藏高原湖相沉積物中保存了Henrich寒冷事件的烙印日韩亚洲欧美激情视频、氧同位素階段5e和全新世的不穩(wěn)定性国内大量愉拍人妻精品视频，Yonger Dryas東亞季風(fēng)降水的空間變率以及最近100年東亞季風(fēng)降水變率增大等。

However, this does not disprove that short changes in intensity or direction of the Kuroshio ever occurred at certain short cooling events. The 10Be minimum during the Younger Dryas event may indicate that the Kuroshio had been once greatly weakened or even terminated in the Okinawa Trough area which could be related to the response of the Pacific Ocean to the Younger Dryas. The 10Be and 9Be in surface sediment show totally different distribution patterns. The 10Be distribution is dominated by the input from Kuroshio and its branch, the Yellow Sea Current, whereas 9Be is mainly influenced by terrestrial input of suspended materials from the Yellow River discharge and deposited in the fine-grain size sediment zone southwest of the island of Jeju. Both 10Be and 9Be distribution patterns are different from anthropogenic pollutants such as heavy metal Pb which is dominantly distributed closely to the coastal areas.

冰期時(shí)沖繩海槽北部10Be的沉積通量遠(yuǎn)遠(yuǎn)高于太平洋大洋海區(qū)农村的毛片丨级，充分反映了黑潮的傳送帶作用和邊緣海的聚焦沉積作用国产亚洲AAA片在线看，并表明末次冰期時(shí)在千年尺度上黑潮仍流經(jīng)沖繩海槽，且強(qiáng)度并未減弱免费乱伦无码免费观看网站。10Be的通量在新仙女木時(shí)降到整個(gè)巖芯所跨時(shí)期的最低點(diǎn)欧美熟妇丰满肥白大屁股，甚至低于10Be的現(xiàn)代大氣平均生產(chǎn)率，因此推測在新仙女木事件時(shí)a片在线播放免费网址，黑潮的變動(dòng)特別大A毛片好看免费视频，有可能改向或斷流。