【摘要】 本文根据嘉荫盆地、依兰—伊通地堑、抚顺盆地等6个盆地中2个露头剖面、18个钻井剖面采集的493块第三系古地磁样品的测试结果,得出乌云组极性序列相当于26～27极性时,永吉组、双阳组相当于18～24极性时、虎林组相当于10～13极性时,古纬度比现今偏南4°～5°。更多还原

【Abstract】 Palaeomagnetic measurements were carried out for 493 samples, which were collected from two outcrop sections and eighteen core sections in the northeast oil-gas-bearing region in China. It is shown that the polarity zones could be correlated respectively with polarity chrons 26-27 for Wuyun formation, 18-21 for Jijuntun and Xilutian formations, 18-24 for Yongji and Shuangyang formations, and 11-13 for Hulin formation. The palaeolati tudes were4°～5°lower than its present values.更多还原