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磁化率各向异性的原理及应用实例

张淑伟 杨振宇 王喜生 MariaTCioppa 乔彦松 霍俊杰 EdgardoCañón-Tapia 赵越

张淑伟, 杨振宇, 王喜生, 等, 2017. 磁化率各向异性的原理及应用实例. 地质力学学报, 23 (1): 135-140.
引用本文: 张淑伟, 杨振宇, 王喜生, 等, 2017. 磁化率各向异性的原理及应用实例. 地质力学学报, 23 (1): 135-140.
ZHANG Shu-wei, YANG Zhen-yu, WANG Xi-sheng, et al., 2017. ANISOTROPY OF MAGNETIC SUSCEPTIBILITY:THEORY AND CASE STUDIES. Journal of Geomechanics, 23 (1): 135-140.
Citation: ZHANG Shu-wei, YANG Zhen-yu, WANG Xi-sheng, et al., 2017. ANISOTROPY OF MAGNETIC SUSCEPTIBILITY:THEORY AND CASE STUDIES. Journal of Geomechanics, 23 (1): 135-140.

磁化率各向异性的原理及应用实例

基金项目: 

国家自然科学基金青年基金项目 41204052

国家博士后基金项目 2014M550780

山西省自然基金项目 2014011032-2

山西省回国留学人员基金项目 2014-021

详细信息
    作者简介:

    张淑伟(1973-), 女, 博士, 岩石磁学和环境磁学专业, 从事环境磁学和古气候变化研究。E-mail:zhangshuwei@163.com

  • 中图分类号: P318

ANISOTROPY OF MAGNETIC SUSCEPTIBILITY:THEORY AND CASE STUDIES

  • 摘要: 磁化率各向异性(AMS)在地质领域中的应用极为广泛,可以用来研究古流向造成的磁性矿物的定向排列,以及构造应力作用引起的岩石内磁性矿物的定向重结晶、定向排列及韧性变形。本文介绍了AMS的基本原理和参数,并并介绍了前人及作者应用AMS详细分析研究了二个实例:(1)以假多畴(MD)高钛磁铁矿为主要载磁矿物的玄武岩样品的AMS变化及其对构造运动的响应;(2)以MD磁铁矿为主要载磁矿物的湖泊沉积物样品在沉积过程中AMS变化。AMS可以灵敏地检测样品中磁性矿物的定向排列,因此在在地质领域中具有很好的应用前景。

     

  • 图  1  费林图(a)和磁化率各向异性-椭球形状参数图(b)[15]

    Figure  1.  Flinn (L-F) and Pj-T diagrams

    图  2  磁化率各向异性图[15]

    K1—方框;K2—三角;K3—实心圆;F—片理面;B—层面;红箭头—挤压应力方向
    A-D—未加热和加热(580 ℃)石灰岩样品的等面积投影图和费林图;E-H—未加热和加热(580 ℃)玄武岩样品的等面积投影图和费林图;Ⅰ, J—受南北向挤压构造应力的玄武岩样品磁化率各向异性最小轴的等密度曲线(Ⅰ)和这些玄武岩体的层面法线等密度曲线(J)

    Figure  2.  Anisotropy of magnetic susceptibility Map

    图  3  干海湖泊磁化率各向异性图

    a, b, c-上层、转换层、中层的磁化率各向异性-形状参数图; d, e, f-各层的等面积投影图

    Figure  3.  Anisotropy of magnetic susceptibility Map of Dry lake

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出版历程
  • 收稿日期:  2016-12-06
  • 刊出日期:  2017-02-28

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