北京平原沙河凹陷第四纪磁性地层学研究及其新构造运动的沉积响应
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:

中国地质调查局项目(12120113012000,1212011301290)资助。


Quaternary magnetic stratigraphy and its sedimentary response to new tectonic movement in Shahe depression, plain area of Beijing
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    北京地区在古近—新近纪时呈"两隆一凹"的构造格局。由于南口—孙河断裂北段第四纪以来的强烈活动,在上述格局上分化出新的第四纪凹陷盆地——沙河凹陷。本次工作在沙河凹陷内开展了钻孔ZK3的第四纪磁性地层研究,结合14C同位素测年结果获得钻孔剖面早更新世、中更新世、晚更新世和全新世地层底板埋深分别为493.8m、157.4m、87.7m和7.2m,建立了钻孔剖面的第四纪地层序列。通过计算ZK3钻孔剖面第四系沉积速率分别为0.19mm/a、0.11mm/a、0.70mm/a和0.63mm/a。对比分析控盆断裂南口—孙河断裂的活动规律及北京西山的隆升特点,第四纪以来,受到北京西山隆升的影响,控制沙河凹陷的同生断裂南口—孙河断裂强烈活动,并控制了沙河凹陷的演化形成。钻孔地层平均沉积速率所体现的变化规律与山体隆升速率及断裂活动速率具有较好的响应关系。

    Abstract:

    The tectonic pattern of Beijing area in Tertiary was"two uplifts and one depression". Due to the strong activity of the north part of Sunhe fault since the Quaternary period, new Quaternary depression basin, i.e., Shahe depression, was separated from the above pattern. The authors conducted research on Quaternary magnetic stratigraphy of drill hole ZK3 in Shahe depression. In combination with the 14C isotopic dating results, the authors obtained the depth of the bottom of the strata in early Pleistocene, Middle Pleistocene, late Pleistocene and Holocene, being 439.8 m, 157.4 m, 87.7 m and 7.2 m respectively. On such a basis, the authors established the Quaternary stratigraphic sequence of drill hole profile. The Quaternary deposition rates were 0.19 mm/a, 0.11 mm/a, 0.70 mm/a and 0.63 mm/a. A comparative analysis of the activity regularity of the basin- controlling fault, i.e., Nankou- Sunhe fault, and characteristics of Beijing Xishan (Western Hills) uplift shows that since the Quaternary period, influenced by Beijing Xishan uplift, the contemporaneous faults that controlled Shahe depression, i.e., Nankou Sunhe faults, activated strongly, and controlled the evolution of Shahe depression. The variation rule of average deposition rate of the strata in the drill hole, the mountain uplift rate and the fault activity rate have a good response relationship.

    参考文献
    相似文献
    引证文献
引用本文

张磊,张晓亮,白凌燕,蔡向民,王继明,杨天水. 北京平原沙河凹陷第四纪磁性地层学研究及其新构造运动的沉积响应[J]. 中国地质, 2016, 43(3): 1076-1084.
ZHANG Lei, ZHANG Xiao-liang, BAI Ling-yan, CAI Xiang-min, WANG Ji-ming, YANG Tian-shui. Quaternary magnetic stratigraphy and its sedimentary response to new tectonic movement in Shahe depression, plain area of Beijing[J]. Geology in China, 2016, 43(3): 1076-1084(in Chinese with English abstract).

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2015-12-09
  • 最后修改日期:2016-01-26
  • 录用日期:
  • 在线发布日期: 2016-06-28
  • 出版日期:
亮点文章推荐
古人云:工欲善其事,必先利其器。我国新一轮战略找矿行动已全面启动。用什么方法、什么手段实现增储上产是面临的突出问题。本刊登载了几篇基于新技术、新方法实现找矿突破的实例,供大家参阅,助力新一轮战略找矿目标的实现。
基于随机森林算法的找矿预测——以冈底斯成矿带西段斑岩—浅成低温热液型铜多金属矿为例. 欧阳渊等,2023, 50(2):303-330.
基于重磁资料在山东齐河—禹城探获矽卡岩型富铁矿:对超深覆盖区找矿的启示. 王润生等,2023, 50(2):331-346.
自然伽马曲线重构波阻抗反演在勘探含铀有利成矿砂体中的尝试. 梁建刚等,2023, 50(2):347-358.
宽频大地电磁法寻找“界面型”隐伏金矿床:以黔西南戈塘地区深部找矿为例. 张伟等,2023, 50(2):359-375.
页岩气基础地质调查钻井技术研究进展及展望. 赵洪波等,2023, 50(2):376-394.
关闭