Characters and influence factors on Archeozoic reservoir in the Chengbei 30 buried hills;

Their source is the Archean Group.

The Archean terrain in the northern Huangling block is composed of the trondhjemites with residual adjoining rocks-Wangjiawan group, which was a granite-grenstone terrain,underwent amphibolite facies metamorphism.

Using calculation of fractal theory, the fractal dimensions of the core structure fracture in granite gneiss and lamprophyre in Chengbei 30 Archaean group buried hill reservoir are1.

Lithologic identification and reservoir division of Xing-Ma Archean group buried hill in Liaohe basin;