Purpose. The aim of research is the question of calculating the depth of the crystalline basement, determine its structural position against the surface of the Mesozoic and the laws of the dimension distribution of volcanic rocks in the Yevlakh-Agjabedi trough Azerbaijan. Methodology. The technique is based on the use of these gravitational and magnetic, allowing the construction of the regression equation to calculate the depth of the foundation and construction of the spatial position of volcanic formations. Results. It built a new block diagram of the crystalline basement on the Yevlakh-Agjabedi deflection. It was found that the most lowered part of the foundation shifted south by 20 km compared to the previous scheme. For newly built circuit in the west of the foundation set deep fault trough with large amplitude corresponding to the deep faults detected by Mesozoic seismic CDP. Was to compare the structural position of the crystalline basement of the complex surfaces and Mesozoic sediments, studied the spatial position of the volcanic bodies developing mainly between these surfaces. It is also established that the provisions of the structural foundation of the Mesozoic and some form of repeated and volcanic rocks developed in the side parts of the trough. Distribution of volcanic formations in the local habitat gives reason to believe that in the Kura depression and its related areas in the Mesozoic were carried out mainly in sedimentary facies sediments with abundant content of organic substances, i.e. the raw materials necessary for the formation of hydrocarbons. It is assumed the presence of oil and gas traps under thick layers of volcanic origin. Originality. It was revealed that build a single correlation dependence for calculating the depth of the crystalline basement around the Yevlakh-Agjabedi deflection is not possible. It was established that on the western part of Yevlakh-Agjabedi flexure runs deep fault with large amplitude and the western part is raised for several kilometers. The practical significance. These results can successfully be used in the refinement of the structural position of the crystalline basement and, when assessing the oil and gas potential of deep traps associated with volcanic structures.
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