Digital estimation of the gravitational effect of the crystalline basement of the Yevlakh-Agjabadi basin (Middle-Kur depression, Azerbaijan)
Azerbaijan State Oil and Industry University, Azerbaijan 34, Azadlig ave., Baku, AZ1010: firstname.lastname@example.org
The paper is devoted to an assessment of the gravitational effect of the crystalline basement of the Yevlakh-Agjabadi Basin of the Middle Kur Depression of Azerbaijan. The Yevlakh-Agjabadi trough is characterized by a thick layer of sedimentary deposits of the Mesozoic and Cenozoic age, lying on a crystalline basement. According to the data of deep seismic sounding, a structural map on the surface of the crystalline basement was plotted. The trough itself is oriented in the Caucasian direction. In this area well-known Muradkhanly and Jafarly oil and gas deposits occur. The crystalline basement, as well as the Meso-Cenozoic deposits, have excessive density and therefore are well reflected in the gravitational field as local gravity anomalies. It can be said that most of the areas of Azerbaijan, including the territory of the Yevlakh-Agjabadi trough, are covered by a general and detailed gravimagnetic surveys. Based on these results, a number of local anomalies were identified here, including in the Muradkhanly and Jafarly areas. High-precision gravimetric and magnetometric surveys are carried out here using digital gravimeters and magnetometers, which disclose great opportunities for gravimetric and magnetometric explorations in the study of this region. In addition, the Department of Geophysics of Azerbaijan State Oil and Industrial University has developed software for various transformations of gravimagnetic fields, as well as solving forward and inverse problems of gravity and magnetic exploration. Therefore, the study of this trough by digital gravity modeling is a very essential problem.
Keywords: algorithm, block-diagram, gravity anomaly, structural map, assessment of gravitational effect, gravity model, digital modeling
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