山西交城水峪贯三叠系下统磁性地层学研究  

MAGNETOSTRATIGRAPHY OF LOWER TRIASSIC IN SHUIYUGUAN,JIAOCHENG,SHANXI

作　　者：苏朴[1] 樊行昭[1] 史瑞萍[1] 

机构地区：[1]太原理工大学矿业工程学院地球科学与工程系,太原030024

出　　处：《地球物理学报》2001年第2期219-227,共9页Chinese Journal of Geophysics

基　　金：山西自然科学基金!项目 ( 971 0 2 4 )

摘　　要：通过对水峪贯三叠系下统刘家沟组及和尚沟组的古地磁学研究 ,建立了该地层段的极性地层柱 ,极性柱具有混合极性的特点 .其中刘家沟组正反极性的组合格式与前人在鄂尔多斯盆地的结果基本一致 ,但和尚沟组差别较大 .根据特征剩磁确定的早三叠世刘家沟组的古地磁极位置经纬度分别为 347.5°和 69.5° ,这与前人在太原西山三叠系下统的研究成果 ,古地磁极位置经纬度 348.3° ,61 .Magnetostratigraphy of Liujiagou Group and Heshanggou Group of Lower Triassic has in Shuiyuguan of Jiaocheng county,Shanxi,China has been established. The magnetic polarity column has a mixed polarity character. During the lower Triassic period,the polaritiy started with a normal polarity. The combination of normal and reversed polarities in Liujiagou Group is basically the same as the results from Erdos. The longitude and latitude of the average pole for Liujiagou are 347.5°,69.0°,basically same as the previous result:348.3°,61.9° for Taiyuan of North China.

关 键 词：三叠系下统 磁性地层学 混合极性带 古地磁学 极性地层柱 

分 类 号：P318.44[天文地球—固体地球物理学] P534.51[天文地球—地球物理学]