Seismic Density Model of the White Sea’s Crust

Study of the deep structure of the White Sea region is relevant to active geodynamics, manifestations of kimberlite magmatism, and the prospects of oil and gas searches. The aim of this work was to model the velocity and density structure of the earth’s crust in the White Sea region. Modelling was c...

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Main Authors: Boris Belashev, Lyubov Bakunovich, Nikolai Sharov, Michail Nilov
Format: Article
Language:English
Published: MDPI AG 2020-12-01
Series:Geosciences
Subjects:
Online Access:https://www.mdpi.com/2076-3263/10/12/492
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author Boris Belashev
Lyubov Bakunovich
Nikolai Sharov
Michail Nilov
author_facet Boris Belashev
Lyubov Bakunovich
Nikolai Sharov
Michail Nilov
author_sort Boris Belashev
collection DOAJ
description Study of the deep structure of the White Sea region is relevant to active geodynamics, manifestations of kimberlite magmatism, and the prospects of oil and gas searches. The aim of this work was to model the velocity and density structure of the earth’s crust in the White Sea region. Modelling was carried out using the known data of instrumental observations and the software complex “Integro”. With the help of 2D models based on deep seismic sounding (DSS) profiles and a digital map of the anomalous gravity field, the density structures of local areas of the region’s crust were refined. A 3D density model was built. Within the framework of this model, the positions of the density layers were determined. The relief of the Mohorovichich (Moho or M) discontinuity reflects the anomalies of the gravity field. Depression of the Moho boundary in the bottleneck of the White Sea indicates the vertical structure of the earth’s crust associated with manifestations of kimberlite magmatism.
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spelling doaj.art-33dae9a671604dd990ee70aab53c46382023-11-20T23:48:49ZengMDPI AGGeosciences2076-32632020-12-01101249210.3390/geosciences10120492Seismic Density Model of the White Sea’s CrustBoris Belashev0Lyubov Bakunovich1Nikolai Sharov2Michail Nilov3Institute of Geology, FGBUN FIC, Karelian Research Center, RAS, 185910 Petrozavodsk, RussiaInstitute of Geology, FGBUN FIC, Karelian Research Center, RAS, 185910 Petrozavodsk, RussiaInstitute of Geology, FGBUN FIC, Karelian Research Center, RAS, 185910 Petrozavodsk, RussiaInstitute of Geology, FGBUN FIC, Karelian Research Center, RAS, 185910 Petrozavodsk, RussiaStudy of the deep structure of the White Sea region is relevant to active geodynamics, manifestations of kimberlite magmatism, and the prospects of oil and gas searches. The aim of this work was to model the velocity and density structure of the earth’s crust in the White Sea region. Modelling was carried out using the known data of instrumental observations and the software complex “Integro”. With the help of 2D models based on deep seismic sounding (DSS) profiles and a digital map of the anomalous gravity field, the density structures of local areas of the region’s crust were refined. A 3D density model was built. Within the framework of this model, the positions of the density layers were determined. The relief of the Mohorovichich (Moho or M) discontinuity reflects the anomalies of the gravity field. Depression of the Moho boundary in the bottleneck of the White Sea indicates the vertical structure of the earth’s crust associated with manifestations of kimberlite magmatism.https://www.mdpi.com/2076-3263/10/12/492Fennoscandian ShieldWhite Seaearth’s crustseismicvelocity and density modelsvelocity layers
spellingShingle Boris Belashev
Lyubov Bakunovich
Nikolai Sharov
Michail Nilov
Seismic Density Model of the White Sea’s Crust
Geosciences
Fennoscandian Shield
White Sea
earth’s crust
seismic
velocity and density models
velocity layers
title Seismic Density Model of the White Sea’s Crust
title_full Seismic Density Model of the White Sea’s Crust
title_fullStr Seismic Density Model of the White Sea’s Crust
title_full_unstemmed Seismic Density Model of the White Sea’s Crust
title_short Seismic Density Model of the White Sea’s Crust
title_sort seismic density model of the white sea s crust
topic Fennoscandian Shield
White Sea
earth’s crust
seismic
velocity and density models
velocity layers
url https://www.mdpi.com/2076-3263/10/12/492
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AT lyubovbakunovich seismicdensitymodelofthewhiteseascrust
AT nikolaisharov seismicdensitymodelofthewhiteseascrust
AT michailnilov seismicdensitymodelofthewhiteseascrust