摘要
华北地块中元古代杨庄组的古地磁研究提供了一个同时通过褶皱检验和倒转检验的古地磁极,极位置为经度190.4°、纬度2.4°。通过与Laurentia、Baltica和Siberia可靠的古地磁数据对比,支持了古—中元古代可能存在Columbia超级大陆的假说。华北地块与Laurentia、Baltica和Siberia视极移曲线的对比表明华北地块与Baltica在古—中元古代可能长期相连。
A high-quality paleomagnetic pole with positive fold and reversal tests at 190.4°E, 2.4°N has been acquired from the Mesoproterozoic Yangzhuang Formation in North China Block. The comparison of this pole with paleomagnetic data from others paleo-continent supports the hypothesis of Columbia supercontinent. The similar apparent polar wander paths of North China Block and Baltica indicates that a long connection between North China Block and Baltica in Paleo- Mesoproterozoic.
出处
《地质通报》
CAS
CSCD
北大核心
2005年第6期496-498,共3页
Geological Bulletin of China
基金
国家自然科学基金重点项目(40132020)资助。
