gtcrustГеодинамика и тектонофизикаGeodynamics & Tectonophysics2078-502XInstitute of the Earth's crust of the Russian Academy of Sciences, Siberian Branch10.5800/GT-2024-15-4-0771IBNQWMgtcrust-1883Research ArticleСОВРЕМЕННАЯ ГЕОДИНАМИКАRECENT GEODYNAMICSМОЩНОСТЬ КОРЫ И СООТНОШЕНИЕ Vp/Vs В МОНГОЛИИTHE CRUSTAL THICKNESS AND Vp/Vs RATIO IN MONGOLIAЦагаанБ.TsagaanB.

13343, Улан-Батор; 14200, Улан-Батор

Ulaanbaatar 13343; Ulaanbaatar 14200

baasanbat@iag.ac.mnЧимэдО.ChimedO.

13343, Улан-Батор

Ulaanbaatar 13343

ЦэрмааБ.TsermaaB.

14200, Улан-Батор

Ulaanbaatar 14200

ХөхөөдэйУ.KhukhuudeiY.

14200, Улан-Батор

Ulaanbaatar 14200

Институт астрономии и геофизики МАН; Монгольский национальный университетМонголияInstitute of Astronomy and Geophysics, Mongolian Academy of Sciences; National University of MongoliaMongoliaИнститут астрономии и геофизики МАНМонголияInstitute of Astronomy and Geophysics, Mongolian Academy of SciencesMongoliaМонгольский национальный университетМонголияNational University of MongoliaMongolia202418082024154771771Copyright © Цагаан Б., Чимэд О., Цэрмаа Б., Хөхөөдэй У., 20242024Цагаан Б., Чимэд О., Цэрмаа Б., Хөхөөдэй У.Tsagaan B., Chimed O., Tsermaa B., Khukhuudei Y.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.gt-crust.ru/jour/article/view/1883

Мощность земной коры под Монголией была определена с использованием метода суммирования телесейсмической функции приемника H-k, где использовались формы сигналов с широкополосных сейсмических станций в Монголии. Результаты показывают, что толшина коры увеличивается с 35.9 км на востоке до 63 км на западе. В центральной части Монголии толщина составляет примерно 45 км. Характеристики преобразованной P-S фазы и отрицательных амплитуд при суммировании функций приемника могут быть отнесены к региональным тектоностратиграфическим террейнам в Монголии. Впоследствии путем объединения результатов этого исследования с результатами других сейсмологических исследований и моделью земной коры CRUST1.0 была создана общая карта мощности земной коры Монголии.

Crustal thickness beneath Mongolia was determined using the teleseismic receiver function H-k stacking method, which employed waveform data from broadband seismic stations in Mongolia. The findings reveal that the crust of Mongolia thickens from east to west, with the thickness reaching 63 km in west Mongolia and 35.9 km in east Mongolia. In the central part of Mongolia, the average thickness of the crust is approximately 45 km. The characteristics of P-to-S converted phases and negative amplitudes in stacked receiver functions, may be attributed to regional tectonostratigraphic terranes in Mongolia. Subsequently, a general map of the crustal thickness of Mongolia was generated by combining the results of this study with those of other seismological studies and the CRUST1.0 model of the Earth’s crust.

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The authors declare that there are no conflicts of interest present.