Abstract: Volcanic rocks as an oil-gas reservoir has been approved for the Carboniferous petroleum exploration in the northern Xinjiang. The exploration of eastern Luliang area in Junggar basin reveals that the petrophysical property, the gravitational-magnetic-electric abnormal information and the lithology identification of its volcanic rocks. The study shows that the high- precise gravitational-magnetic-electric data in scale of 1∶50 000 and corresponding special processing methodologies should be applied to identify the regional distribution of the volcanic lithology with density, magnetism and resistivity differences. And the predicted results are more accordant with the real Carboniferous lithology from drilling in this area.

Key words: Junggar basin, gravitational prospecting, magnetic prospecting, electric prospecting, abnormal pattern, Carboniferous, volcanic rock