Volume 6 Issue 4
Dec.  2000
Turn off MathJax
Article Contents
WANG Shu-bing, WU Xi-hao, JIANG Fu-chu, et al., 2000. TWO LOESS PROFILES IN PINGLU,SHANXI AND CORRESPONDING PALEOCLIMATIC RECONSTRUCTION. Journal of Geomechanics, 6 (4): 27-36.
Citation: WANG Shu-bing, WU Xi-hao, JIANG Fu-chu, et al., 2000. TWO LOESS PROFILES IN PINGLU,SHANXI AND CORRESPONDING PALEOCLIMATIC RECONSTRUCTION. Journal of Geomechanics, 6 (4): 27-36.

TWO LOESS PROFILES IN PINGLU,SHANXI AND CORRESPONDING PALEOCLIMATIC RECONSTRUCTION

More Information
  • Received: 2000-06-13
  • Published:
  • In this paper,two loess profiles located in Pinglu,Shanxi north of Sanmenxia gorge of the Yellow River,have been studied. The magnetic susceptibility curves of Miaoxia and Yangwa profiles show that the susceptibility values of S6 and S1 are higher than that deposited in the corresponding period in the Loess Plateau,while the values of S5~S2 and L7~L2 are somewhat lower,being close to the susceptibility value of L9 in the interior of the Loess Plateau. The thickness of strata of S5~L5 is greater than that of the Loess Plateau. A comparison with the curves of the magnetic susceptibility,δ18O in DSDP607 and V30-97,and mid-month insolation 65°N for July of Caocun profile,shows that the climatic changes indicated by both Miaoxia and Yangwa profiles are close to the interior of the Loess Plateau at the scale of 105 a. This fact may reflect its consistency with the global glacial cycle resulting from the variation in solar radiation controlled by variation in some elements of earth's orbit. But there is no simple correspondence between them as shown by the greater thicknesses of deposits and relatively lower susceptibility values. It may be caused by (1) different rate of dust accumulation,(2) water erosion,(3) different source materials and (4) variation in local soil forming conditions.

     

  • loading
  • 加载中

Catalog

    Article Metrics

    Article views (194) PDF downloads(7) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return