【摘要】 本文介绍了地球磁场的成因、极性变化以及运用极性倒转划分对比地层和指示环境。在实际应用中,运用古地磁极性变化和古纬度方法对二连盆地某地区地层定年和地层界面进行识别。更多还原

【Abstract】 This paper introduces the formation of magnetic field,polarity reversal,secular variation and the use of geomagnetic polarity reversal or susceptibility in stratigraphic study.It is verified that this method is effective in dating of stratum and differentiating the boundary between two different layers in the Erlian basin,northeast China.更多还原