• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>NATO Advanced Research Workshop on Impact of the Environment on Human Migration in Eurasia >APPLICATIONS OF GEOCHEMISTRY TO PALEOENVIRONMENTAL RECONSTRUCTION IN SOUTHERN SIBERIA
【24h】

APPLICATIONS OF GEOCHEMISTRY TO PALEOENVIRONMENTAL RECONSTRUCTION IN SOUTHERN SIBERIA

机译：地球化学在西伯利亚南部古环境重建的应用

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study presents results of paleoclimatic reconstructions during the Holocene in Southern Siberia and Central Asia by means of a geochemical approach. For investigations the deposits of Kutudjekovo Lake (Minusinsk Depression), White Lake (Uyuk Depression), aeoline-paleosoil deposits from Arzhan -2 monument (Uyuk Depression) and loess-paleosoil deposits from Tepsey cross-section (Minusinsk Depression) were sampled. The determination of chemical composition was done by ICP-AES, SNC analysis and the Wesemael method. X-ray diffraction was applied for determination of clay compositions in the deposits. The granulometric composition was determined by means of the grain-size analysis. The correlation analysis and method of principal components was applied for processing. Radiocarbon dating and archaeological dating were applied for determination of age of the deposit. The results allow the possibility of reconstructing the climatic factors, affecting the sedimentary processes. The investigations showed the differences of local paleoclimatic conditions between Minusinsk and Uyuk depressions during the Holocene. The Uyuk Depression is characterized by warmer and drier paleoclimate, while the climate in the Minusinsk Depression was milder and damper. Most likely the landscape features of these depressions influenced the local climate. The synchronous climatic variations during the Holocene can be noted for both depressions. These developments have correlation with paleoclimatic events in the Mongolia region. On the whole, the climate in the period from 5000 years ago to 3000 years ago can be characterized as dry. About 3000 years ago in a cold climatic period the rise in humidity began. The humidity maximum was around 2500 years ago (1st millennium BC). The period from 2500 to 1500 years ago was most humid and warm. The differences in occupation of the depressions by ancient people, probably, were linked to their paleoclimatic peculiarities. The occupation processes in the Minusinsk depression were more intensive and more diverse, then in the Uyuk depression. The abrupt increase of humidity, which was dated to about 2500 years ago in both areas, probably, resulted in the appearance of numerous tribes of the Scythian culture over the whole territory.
机译：本研究通过地球化学方法介绍了南部西伯利亚和中亚全新世时期的古叶病重建的结果。对于调查，采样，库鲁德济科沃湖（紫竹抑郁症），白湖（UYUK抑郁症），来自Arzhan -2纪念碑（Uyuk抑郁症）的天竺葵矿床（UYUK抑郁症）和从龙骨横截面（含锡克斯克抑郁症）的黄土古石油沉积物）的储存。通过ICP-AES，SNC分析和WeSEMAL方法确定化学组合物的测定。施加X射线衍射用于测定沉积物中的粘土组合物。通过晶粒尺寸分析测定粒度组合物。施用主要成分的相关分析及其处理。 RadioCarbon约会和考古约会用于确定押金年龄。结果允许重建气候因子，影响沉积过程。该研究表明，全新世思诺岛和uyuk洼地之间的局部古叶病症之间的差异。 uyuk抑郁症的特点是较温暖和更干燥的古气候，而Minussk抑郁症的气候则是较温暖的和阻尼器。这些抑郁症的景观特征很可能影响了当地的气候。全新世期间的同步气候变化可以注意到洼地。这些发展具有与蒙古地区的古叶病事件相关的相关性。总的来说，从5000年前到3000年前的气候可以表征为干燥。大约3000年前在寒冷的气候时期，湿度的兴起开始了。湿度最高为约2500年前（BC千年）。从2500到1500年前的时间最潮湿和温暖。古代人的萧条的差异可能与他们的古脑力学特性有关。小胰蛋白抑郁症中的职业过程更加密集，更多样化，然后在uyuk抑郁症。可能会在两个地区约2500年前日期为大约2500年前的湿度突然增加，导致整个领土上的众多席士斯文化部落的出现。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号