1. Total 40 surface argillaceous sediments were collected along major and branch channels of the Red River for measuring major and trace elements. ����ͨ����չ�����ظ�������Ҫ֧��40����Ʒ����Ҫ����Ԫ�ص���ѧ������
2. On the basis of predecessors' researches, this article studies the correlation between evolvement stages and sealing ability of the argillaceous rock. ��ǰ���о��ɹ��Ļ����ϣ����Ŀǰ��Ȼ����̽�о�����״���ܽ�ȷ�����������ݻ����������ܵĶ�Ӧ��ϵ��
3. The insulating layers of Xinglongtai dense oil horizon in Shuguang District, Liaohe Oilfields could be divided into three types such as mudstone, sandy mudstone, argillaceous sandstone. �ɺ������������¡̨�����Ͳ��и��㰴���Կɷ�Ϊ�����ࡢɰ����ɰ���������ࡢ����ɰ����ɰ���������ࡣ