北疆典型尾闾湖全新世气候变化沉积响应特征研究
文献类型：学位论文
| 作者 | 张文河 |
| 学位类别 | 硕士 |
| 答辩日期 | 2007 |
| 授予单位 | 中国科学院．新疆生态与地理研究所 |
| 导师 | 穆桂金，新疆生态与地理研究所 |
| 关键词 | 北疆尾闾湖 |
| 其他题名 | Study on Responsive Depositional Characteristics of the Typical Tail-End-Lakes in North Xinjiang During Holocene Climate Change |
| 中文摘要 | 新疆北部系天山以北，地貌以山盆结构为主。气候类型是温带大陆性气候。河流除额尔齐斯水系外均属于内陆河流，在一些较大的河流末端常分布尾闾湖。本文所涉及的湖泊主要分布于准噶尔盆地，包括艾比湖、玛纳斯湖、乌伦古湖、东道海子湖、巴里坤湖，除巴里坤湖之外，其他湖泊均分布在准噶尔盆地。本研究所选择的湖泊地理空间上有东西差异，也有南北纬度差异。目前，古气候研究者对极地冰芯、深海沉积及黄土等自然记录的研究已相当成功，沉积记录的各代用指标的环境意义也很明确。借助以上沉积记录对古全球变化的成功研究，湖泊沉积的研究也日益成熟。然而，大量的湖泊沉积的研究结果表明，在解释湖泊沉积记录的信息时，不同的研究者给出了不同的阐释，湖泊沉积与其他自然记录及相互之间也没有良好的对应。本论文收集近30年来所有已发表的湖泊沉积及相关文献资料，以古全球变化的环境事件为参照系，探讨北疆典型尾闾湖沉积记录的气候响应特征。通过多个湖泊钻孔的环境代用指标的对比，分析湖泊沉积物各环境代用指标对全新世以来的气候变化响应的特点。对比结果显示湖泊沉积中，不同的环境代用指标敏感性是不同的，环境代用指标在不同的时间及地点其环境意义也会发生变化；在没有发生沉积间断的情况下湖泊沉积记录是完整的，千年尺度上湖泊沉积记录与全球变化基本对应，随着分辨率的提高，湖泊沉积在百年尺度上也有良好的记录。作为区域环境的产物，湖泊沉积记录还有区域性特征。North Xinjiang located in the north of Tiaushan mountain.Basin-Mountain geomorphology is predominant in this area. Temperate continental climate,all the river here is inland river except Ertix river system. There are some terminal lakes at the end of some bigger rivers. Aibi lake,Manas lake,Wulungu lake,Dongdaohaiz lake, and Balikun lake is involved in this article which all in the Zhungeer basin but Balikun lake. The differences of these lakes position between north and south, west and east is under consideration. Paleo-climate researcher had made big achievement in the ice core, deep sea sediment and loess. Proxy record of these archives has a very clear environment messages. Although lacustrine sediment study made a lot of progress with the help of the achievements mentioned above, there are different opinions about the records of lake sediments for its fail corresponding on each other and past globe change. We collected all the papers about lake sediments published in resent thirty years, studied the responsive depositional characteristics of the typical tail-end-lakes in North Xinjiang during holocene. with the environment events as reference frame.By the comparison of all kinds of proxy records in different lake or in same lake, study show the sensitive of proxy of lake sediments record are vary from each other. Integrity of lake sediment record is conspicuous without deposit interrupt. Lake sediment will have good record at centennial-scale if the resolution is high. Regional of lake sediment record is anther character. |
| 学科主题 | 地质 |
| 语种 | 中文 |
| 公开日期 | 2010-11-12 |
| 页码 | 共70页 |
| 源URL | [http://ir.xjlas.org/handle/365004/7922]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | 张文河. 北疆典型尾闾湖全新世气候变化沉积响应特征研究[D]. 中国科学院．新疆生态与地理研究所. 2007. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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