Magnetic Fabric Characteristics of Zhuganhe Loess—Palaeosols Profile on Northern Slope of Dabie Mountains and Their Environmental Significances
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    Abstract:

    The magnetic fabric parameters of the Zhuganhe loess—palaeosols profile on the northern slope of the Dabie Mountains show that the mean values (Pj<1.02,F<1.02) of the upper (0~1480cm) strata is less than that of the bottom. F—L and Pj—q plots of the samples very clearly indicate that the samples have oblate ellipsoids fabric,and the magnetic foliations are dominant over magnetic lineations. Stereographic projection of anisotropy of aximum magnetic principal axis shows that the direction of declination of the upper strata is relatively dispersing with inclination of the long axis smaller than 15°and short axis bigger than 60°, however,the bottom is relatively concentrating with inclination of the long axis smaller than 10°and short axis bigger than 80°;Generally, magnetic fabric characters show that the upper strata is aeolian deposit and the bottom is hydraulic deposit. The stereographic projections of the K1 and K3 demonstrate that the wind direction in the comparatively upper strata is NW—SE, While the direction of water flowing in the bottom strata section is SW—NE,which is corresponding to the trend of the Zhugan River, the K1 optimal directions of AMS may be controlled by the uplift of the Dabie Mountains.

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.2012. Magnetic Fabric Characteristics of Zhuganhe Loess—Palaeosols Profile on Northern Slope of Dabie Mountains and Their Environmental Significances[J]. Geological Review,58(2):350-358.

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