Detailed field investigations on petrology, contact relationship, emplacement ages and ore-forming potential of granitic intrusion show that the Tekesi Daban batholith could be disintergrated into two intrusive series: one is Kulesayi series (ca.

From detailed studies on the petrology,contact relation,deformation,metamorphism and so on,it is confirmed that although the granitoids had been strongly metamorphosed and deformed,they still contain clear primary fabrics.

The detailed study on petrology, contact relationship, deformation, and metamorphism of granitic bodies shows that the granite bodies in the Dangchuan area could be disinlergrated into 7 intrusive bodies of Wucar.

Based on field geology investigation and laboratory research, the distribution, petrologic characteristics and oil reservioring characteristics of the reservoir in the area are studied for the first time.

The petrologic characteristic and the pore types of Y8~Y10 reservoir are studied by X ray diffraction method, the quantitative mineral clay analysis method and thin section analysis method.

Lithological characteristics of sublacustrine white smoke type exhalative rock of the Xiagou Formation in Jiuxi Basin;

In order to solve this problem, the author have studied the Lithological characteristics, forming environment,volcanic facies and reser.

This paper studies the distribution characteristics, the petrologic characteristics and the function during rerservoir-forming of volcanic rock in southern Songliao Basin.