| 塔克拉玛干沙漠北部平原区全新世沉积与气候变化的关系--以肖塘剖面为例 |
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| 引用本文： | 秦作栋,冯起.塔克拉玛干沙漠北部平原区全新世沉积与气候变化的关系--以肖塘剖面为例[J].沉积学报,1997,15(1):168-171. |
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| 作者姓名： | 秦作栋 冯起 |
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| 作者单位： | 1 山西师范大学地理系, 临汾 041004; |
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| 摘 要： | 本文通过塔克拉玛干沙漠北部平原区典型地层剖面（肖塘剖面）沉积物粒度及元素特征的分析，揭示了本区域全新世以来气候变化的基本规律。沉积物主要由河流冲积作用形成的粘粒层与风力作用所形成的砂粒层组成。粘粒物质与现代河流相特征相一致，砂粒物质与现代流沙性质相类同。沉积层位中元素的迁移转化状况与沉积时期气候ｋ水文条件密切相关。全球性气候波动与地处内陆封闭盆地的协同影响，产生了本区多风、干燥、冷干与暖干相互交替的轮回气候。
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| 关 键 词： | 塔克拉玛干 全新世 肖塘剖面 气候变化 |
| 收稿时间： | 1996-06-12 |
Relationship Between Holocene Sediment snd Climatic Change in the Plain Area of Northern Taklimakan Desert kk Take Xiaotang Section As Example |
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| Qin Zuodong and Feng Qi.Relationship Between Holocene Sediment snd Climatic Change in the Plain Area of Northern Taklimakan Desert kk Take Xiaotang Section As Example[J].Acta Sedimentologica Sinica,1997,15(1):168-171. |
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| Authors: | Qin Zuodong and Feng Qi |
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| Institution: | 1 Shanxi Normal University Linfen 041004;2 Institute of Glaciology and Geocryology Lanzhou 730000 |
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| Abstract: | By analyzing the Characteristics of granular and chemical compositions of the Xiaotang profile, the change of Holocene climate in the plain area of northern Taklimakan Desert has been revealed The sedimentary facies mainly consists of clay formed by fluvial washing and aeolian layer caused by wind Clay materials coincide with the typical facies of modern river, while the aeolian deposit is similar to the features of present drift sand. Movement and conversion of elements in sedimentary layers are closely related with the climate and hydrographic canditions at that time The cold-dry and high temperature-dry climate since Holocene has been created under the background of global climate with impact of local desert landscape meanwhile, the windy and dry climate is produced It is objectively recorded in sedimentary facies |
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| Keywords: | taklimakan holocene layer xiaotang profile climate change |
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