Digital Models of the Deep Structure of the Earth's Crust in the Eurasian Basin of the Arctic Ocean.
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| Title: | Digital Models of the Deep Structure of the Earth's Crust in the Eurasian Basin of the Arctic Ocean. |
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| Authors: | Chernykh, A. A.1 (AUTHOR) a.a.chernykh@vniio.ru, Yakovenko, I. V.1 (AUTHOR), Korneva, M. S.1 (AUTHOR), Glebovsky, V. Yu.1 (AUTHOR) |
| Source: | Geotectonics. 2023 Suppl 1, Vol. 57, pS34-S52. 19p. |
| Subject Terms: | *Crust of the earth, *Oceanic crust, *Digital elevation models, *Ocean, *Relief models |
| Abstract: | Digital models of the deep structure of the Earth's crust are developed based on the method of gravity modeling, taking the accumulated geophysical data on the Eurasian Basin of the Arctic Ocean into account. The digital models of the basement relief and sedimentary cover thickness in the Eurasian Basin are calculated on the basis of reinterpretation of depth multi-channel reflection seismic cross-sections and 2D gravity modeling. The digital models of the Moho surface relief and the thickness of the Earth's crust are calculated using the improved 3D gravity modeling method. It is shown that the reason for the deepening of the basement in the Nansen Basin by 1–1.5 km in comparison with the Amundsen Basin is a larger volume of accumulated sedimentary cover in the Nansen Basin, with a similar crustal thickness of ~4.8 km in both basins. The characteristics of the oceanic crust studied on the basis of the obtained digital models reveal a complex 3D variability typical of ultraslow spreading ridges. In the region of the Gakkel Ridge, which was formed at full rates of spreading of less than 12 mm/year, the maximum spread of crustal thicknesses occurs and the tectonic factor dominates over the magmatic one during the accretion of the oceanic crust. This manifests itself in the formation of extended submarine ridges parallel to the amagmatic segments of the ridge. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 175966535 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Digital Models of the Deep Structure of the Earth's Crust in the Eurasian Basin of the Arctic Ocean. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Chernykh%2C+A%2E+A%2E%22">Chernykh, A. A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> a.a.chernykh@vniio.ru</i><br /><searchLink fieldCode="AR" term="%22Yakovenko%2C+I%2E+V%2E%22">Yakovenko, I. V.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Korneva%2C+M%2E+S%2E%22">Korneva, M. S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Glebovsky%2C+V%2E+Yu%2E%22">Glebovsky, V. Yu.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Geotectonics%22">Geotectonics</searchLink>. 2023 Suppl 1, Vol. 57, pS34-S52. 19p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Crust+of+the+earth%22">Crust of the earth</searchLink><br />*<searchLink fieldCode="DE" term="%22Oceanic+crust%22">Oceanic crust</searchLink><br />*<searchLink fieldCode="DE" term="%22Digital+elevation+models%22">Digital elevation models</searchLink><br />*<searchLink fieldCode="DE" term="%22Ocean%22">Ocean</searchLink><br />*<searchLink fieldCode="DE" term="%22Relief+models%22">Relief models</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Digital models of the deep structure of the Earth's crust are developed based on the method of gravity modeling, taking the accumulated geophysical data on the Eurasian Basin of the Arctic Ocean into account. The digital models of the basement relief and sedimentary cover thickness in the Eurasian Basin are calculated on the basis of reinterpretation of depth multi-channel reflection seismic cross-sections and 2D gravity modeling. The digital models of the Moho surface relief and the thickness of the Earth's crust are calculated using the improved 3D gravity modeling method. It is shown that the reason for the deepening of the basement in the Nansen Basin by 1–1.5 km in comparison with the Amundsen Basin is a larger volume of accumulated sedimentary cover in the Nansen Basin, with a similar crustal thickness of ~4.8 km in both basins. The characteristics of the oceanic crust studied on the basis of the obtained digital models reveal a complex 3D variability typical of ultraslow spreading ridges. In the region of the Gakkel Ridge, which was formed at full rates of spreading of less than 12 mm/year, the maximum spread of crustal thicknesses occurs and the tectonic factor dominates over the magmatic one during the accretion of the oceanic crust. This manifests itself in the formation of extended submarine ridges parallel to the amagmatic segments of the ridge. [ABSTRACT FROM AUTHOR] |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=175966535 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S0016852123070051 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 19 StartPage: S34 Subjects: – SubjectFull: Crust of the earth Type: general – SubjectFull: Oceanic crust Type: general – SubjectFull: Digital elevation models Type: general – SubjectFull: Ocean Type: general – SubjectFull: Relief models Type: general Titles: – TitleFull: Digital Models of the Deep Structure of the Earth's Crust in the Eurasian Basin of the Arctic Ocean. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Chernykh, A. A. – PersonEntity: Name: NameFull: Yakovenko, I. V. – PersonEntity: Name: NameFull: Korneva, M. S. – PersonEntity: Name: NameFull: Glebovsky, V. Yu. IsPartOfRelationships: – BibEntity: Dates: – D: 02 M: 12 Text: 2023 Suppl 1 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00168521 Numbering: – Type: volume Value: 57 Titles: – TitleFull: Geotectonics Type: main |
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