÷�����Ϊ�Ž��͸�����ҳ�ҵ�С�Ͷ�����ء���о�۲졢��Ƭ�������л�̼���Ƚ�͹�ҵ�����Ȳ��Է���������÷����ط����߻ҷ��к���������ҳ�ң���ҳ�����л��ʴ���δ��״̬; ��������Ը���ʯ������ʯΪ��������ʯӢ���ȶ���֣�U��Mo ��Ԫ�ؽ�Ϊ����������ϡ������̶ȸߡ���ҳ��ͻ�������ú��֮�ϣ����ϸ����ɫ���ң��������γ��ڰ����--�������; Sr/Ba ��ֵ��٤�����麬���ϵ͡�V/ ( V + Ni) ��0. 5��������ҳ���γ���ȱ���ĵ�ˮ�С���ҳ�����л�����Դ��Ϊ���ӣ���ɫ��ҳ���л��ʷ�Ⱥ����ϸߣ��Ըߵ�ֲ����ԴΪ������ҳ�Ҳ����� ( ������/TOC) �ϵ�; ��ɫ��ҳ�� TOC ��Խϵͣ��л����Ժ�������Ϊ�������нϸߵIJ����ʡ�

content with high ash in type��and its organic matter is immature�� Meanwhile kaolinite and illite are the main clay minerals in Meihe oil shale��enriched by stabilizing components such as quartz�� Elements in Meihe oil shale like U��Mo are relatively rich��and its heave and light ��EE is high in differentation degree�� Oil shale deposited over the coal layers in mutation��covered by the dark gray mudstone��which indicates that the oil shale developed in semi-deep and deep lake environment�� Sr/Ba value and gammacerane value are lower��and V/ (V + Ni) value is greater than 0. 5��which indicates the oil shale forming in anoxic freshwater�� The sources of organic matter in oil shale are more complex��such as high TOC content black oil shale containing mainly high plants with low oil production rate (oil content/ TOC)��and relatively low TOC content of brown oil shale having much more aquatic organic matter with high oil production rate��