• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Asian earth sciences >A luminescence dating study of the sediment stratigraphy of the Lajia Ruins in the upper Yellow River valley, China
【24h】

A luminescence dating study of the sediment stratigraphy of the Lajia Ruins in the upper Yellow River valley, China

机译：黄河上游拉家遗址沉积物地层发光测年研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Pedo-sedimentological fieldwork were carried out in the Lajia Ruins within the Guanting Basin along the upper Yellow River valley. In the eolian loess-soil sections on the second river terrace in the Lajia Ruins, we find that the land of the Qijia Culture (4.20-3.95 ka BP) are fractured by several sets of earthquake fissures. A conglomerated red clay covers the ground of the Qijia Culture and also fills in the earthquake fissures. The clay was deposited by enormous mudflows in association with catastrophic earthquakes and rainstorms. The aim of this study is to provide a luminescence chronology of the sediment stratigraphy of the Lajia Ruins. Eight samples were taken from an eolian loess-soil section (Xialajia section) in the ruins for optically stimulated luminescence (OSL) dating. The OSL ages are in stratigraphic order and range from (31.94 ± 1.99) ka to (0.76 ± 0.02) ka. Combined OSL and ~(14)C ages with additional stratigraphic correlations, a chronological framework is established. We conclude that: (1) the second terrace of the upper part of Yellow River formed 35.00 ka ago, which was followed by the accumulation of the eolian loess-soil section; and (2) the eolian loess-soil section is composed of the Malan Loess of the late last glacial (MIS-2) and Holocene loess-soil sequences.
机译：在黄河上游官厅盆地内的拉家遗址进行了Pedo沉积学实地考察。在拉家遗址第二河阶的风成性黄土-土层中，我们发现齐家文化的土地（4.20-3.95 ka BP）被几组地震裂缝所破坏。砾岩状的红色粘土覆盖了齐家文化的底蕴，也填补了地震裂缝。粘土是由巨大的泥浆流沉积而成的，伴随着灾难性的地震和暴雨。这项研究的目的是提供拉家遗址沉积物地层的发光年表。从废墟中的风成性黄土-土壤段（Xialajia段）中采集了八个样品，用于光学激发发光（OSL）测年。 OSL年龄按地层顺序排列，范围为（31.94±1.99）ka至（0.76±0.02）ka。结合OSL和〜（14）C年龄以及其他地层相关性，建立了年代学框架。我们得出以下结论：（1）黄河上游第二阶地在35.00 ka以前形成，其后是风积黄土土段的堆积； （2）风成性黄土段是由末次冰河末期的马来黄土（MIS-2）和全新世黄土段组成。

著录项

  • 来源
    《Journal of Asian earth sciences》 |2014年第15期|157-164|共8页
  • 作者

    Yuzhu Zhang; Chun Chang Huang; Jiangli Pang; Yali Zhou; Xiaochun Zha; Longsheng Wang; Liang Zhou; Yongqiang Guo; Leibin Wang;

  • 作者单位

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

    Department of Geography, Shaanxi Normal University, Xi'an, Shaanxi 710062, PR China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Yellow River; Cuanting Basin; Lajia Ruins; Qijia Culture; OSL;

    机译：yellow river;Cu安亭basin;LA家ruins;Q i家culture;OS l;

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