Geoelectrical model of the Earth’s crust along the Shu-Sarysu geotraverse according to magnetotelluric soundings

User Rating:  / 0
PoorBest 

Authors:


Aigerim Tleubergenova*, orcid.org/0000-0003-0483-2798, Abylkas Saginov Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Gulzada Umirova, orcid.org/0000-0001-5185-3132, Kazakh National Research Technical University, Almaty, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Oleksiy Karpenko, orcid.org/0000-0002-5780-0418, Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Aliya Maussymbayeva, orcid.org/0000-0002-7214-8026, Abylkas Saginov Karaganda Technical University, Karaganda, the Republic of Kazakhstan, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.


повний текст / full article



Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2023, (3): 005 - 010

https://doi.org/10.33271/nvngu/2023-3/005



Abstract:



Purpose.
To study and assess the possibility of effective application of electrical prospecting by magnetotelluric sounding (MT-sounding) and to determine the range of geological problems to be solved in the geoelectric conditions of the Shu-Sarysu geotraverse.


Methodology.
The issues of methodology of modern technologies of field observations, peculiarities of processing and interpretation of MT-sounding data are considered, which showed that modern instrumental and methodical electrical survey technologies of MT-sounding allow obtaining results of field measurements of increased reliability, due to their accuracy, productivity, mobility, noise immunity, level of automation. To identify the main features of the geoelectric structure of the Earth’s crust and the upper mantle, the modern technique of interpreting MT data allows for 1, 2D inversion of the effective curves of apparent resistivity and impedance phase.


Findings.
Based on MT-sounding data, a geoelectric section of the Shu-Sarysu geotraverse was constructed, characterizing the position and morphology of five geoelectric boundaries in the crustal section in the 0–40 km depth interval. The identified five geoelectric horizons show good coincidence with the conventional seismic horizons and confidently correlate with the geological references established by GIS data.


Originality.
On the basis of MT-sounding studies, the geological interpretation of the structure of suprasalt and subsalt structural-formation complexes is presented; the geological efficiency of MT-sounding electrical prospecting in revealing the complex structures in the conditions of the Shu-Sarysu geotraverse is shown. On the basis of model constructions of the geoelectric section, new data on the deep geological structure of the Shu-Sarysu geotraverse were obtained: new data on the structure of Mesozoic terrigenous-sedimentary rock complexes and the Paleozoic part of the section with the allocation of the supposed faults; on the basis of MT-sounding results, recommendations for further detailed geological exploration work were given.


Practical value.
A comprehensive interpretation is recommended of the obtained MT-sounding data together with the results of geological and geophysical research on the regional profile in order to establish search criteria for the discovery of mineral deposits and the prospects of gas content in the area.



Keywords:
geotraverse, sedimentary cover, basement, Shu-Sarysu sedimentary basin, magnetotelluric sounding, geoelectric section

References.


1. Istekova, S., Umirova, G., & Baigazieva, G. (2015). Geophysical studies of the geological structure and assessment of the oil and gas potential of the south of the Caspian depression in Kazakhstan. Vestnik KazNRTU, (4), 3-13. ISSN: 2709-4758.

2. Zhang, K., Wei, W., Lu, Q., Dong, H., & Li, Ya. (2014). Theoretical assessment of 3-D magnetotelluric method for oil and gas exploration: Synthetic examples. Journal of Applied Geophysics, 106, 23-36. https://doi.org/10.1016/j.jappgeo.2014.04.003.

3. Cherkose, B. A., Saibi, H., Al Bloushi, K., Ali, M. Y., & Smirnov, M. (2022). Deep electrical structure of the northern UAE: An investigation along the Dibba zone and the foreland basin using magnetotellurics. Tectonophysics, 845. https://doi.org/10.1016/j.tecto.2022.229641.

4. Zhang, K., Wei, W., Lu, Q., Dong, H., & Li, Ya. (2014). Theoretical assessment of 3-D magnetotelluric method for oil and gas exploration: Synthetic examples. Journal of Applied Geophysics, 106, 23-36. https://doi.org/10.1016/j.jappgeo.2014.04.003.

5. Akchulakov, U., Zholtaev, G., Kuandykov, B., & Iskaziev, K. (2014). Atlas of oil and gas bearing and prospective sedimentary basins of the Republic of Kazakhstan. Astana.

6. Daukeev, S., Vocalevskii, E., Paragulkov, Ch., Shlygin, D., Pilifosov, V., Kolomiica, V., & Komarov, V. (2002). Deep structure and mineral resources of Kazakhstan (Vol. 3 Oil and gas). Almaty. ISBN 9965-13-760-9.

7. Li, Ya., Fan, A., Yang, R., Sun, Yi., & Lenhardt, N. (2021). Sedimentary facies control on sandstone reservoir properties: A case study from the Permian Shanxi Formation in the southern Ordos basin, central China. Marine and Petroleum Geology, 129, 105083. https://doi.org/10.1016/j.marpetgeo.2021.105083.

8. Zaher, M. A., Younis, A., Shaaban, H., & Mohamaden, M. I. I. (2021). Integration of geophysical methods for groundwater exploration: A case study of El Sheikh Marzouq area, Farafra Oasis, Egypt. The Egyptian Journal of Aquatic Research, 47, 239-244. https://doi.org/10.1016/j.ejar.2021.03.001.

9. Umirova, G., Istekova, S., & Modin, I. (2016). Magnetotelluric soundings for estimating the oil-and-gas content of the Mesozoic complex in Western Kazakhstan. Moscow University Geology Bulletin, 71, 361-367. https://doi.org/10.3103/S0145875216050094.

10. Zhumabekov, A., Zhen, L., Portnov, V., Xiaodong, W., & Xin, Ch. (2021). Integrating the geology, seismic attributes, and production of reservoirs to adjust interwell areas: A case from the Mangyshlak Basin of West Kazakhstan. Applied Geophysics, 18(3), 420-430. https://doi.org/10.1007/s11770-021-0907-1.

11. Ingerov, O. (2005). Application of electrical exploration methods in the search for hydrocarbon deposits. Zapiski Gornogo Instituta, 162, 15-25. ISSN 2411-3336.

12. Mansoori, I., Oskooi, B., & Pedersen, L.B. (2015). Magnetotelluric signature of anticlines in Iran’s Sehqanat oil field. Tectonophysics, 654, 101-112. https://doi.org/10.1016/j.tecto.2015.05.004.

 

Visitors

6398361
Today
This Month
All days
1092
73256
6398361

Guest Book

If you have questions, comments or suggestions, you can write them in our "Guest Book"

Registration data

ISSN (print) 2071-2227,
ISSN (online) 2223-2362.
Journal was registered by Ministry of Justice of Ukraine.
Registration number КВ No.17742-6592PR dated April 27, 2011.

Contacts

D.Yavornytskyi ave.,19, pavilion 3, room 24-а, Dnipro, 49005
Tel.: +38 (056) 746 32 79.
e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.
You are here: Home Archive by issue 2023 Content №3 2023 Geoelectrical model of the Earth’s crust along the Shu-Sarysu geotraverse according to magnetotelluric soundings