宁南盆地新生界寺口子组磁性地层学研究A PALEOMAGNETIC STUDY OF THE CENOZOIC SIKOUZI FORMATION IN GUYUAN,NINGXIA
韩鹏,刘池洋,高飞,房建军,王建强
摘要(Abstract)：
通过对宁夏固原新生代寺口子剖面的古地磁年代研究,获得该剖面始新统寺口子组共记录的15个正极性和14个反极性,可以与标准极性柱C21n—C11n.1n段进行很好的对比,通过多种地质资料综合分析,确定年龄为47.906—29.401Ma。这一年龄区间正好与现今鄂尔多斯盆地周缘其他新生代断陷盆地(如渭河盆地、银川盆地等)接受沉积的时代基本一致,宁南盆地的发育与这些周缘新生代断陷盆地很可能具有相同的区域地球动力学环境和盆地属性。
关键词(KeyWords)： 磁性地层学;始新世;新生代;寺口子;固原;宁夏;青藏高原
基金项目(Foundation): 国家重点基础研究发展规划项目(2003CB214600);; 教育部长江学者和“油气盆地”创新团队发展计划资助项目(NoIRT0559);; 国家自然科学基金项目(No40372096)
作者(Author): 韩鹏,刘池洋,高飞,房建军,王建强
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