Seismogenic Structures in Sediments of Different Lithological Composition and Their Position in Mesozoic–Cenozoic Sections of the Northern Caucasus.
| Title: | Seismogenic Structures in Sediments of Different Lithological Composition and Their Position in Mesozoic–Cenozoic Sections of the Northern Caucasus. |
|---|---|
| Authors: | Gavrilov, Yu. O.1 (AUTHOR) yugavrilov@gmail.com, Gatatdinova, Yu. R.1 (AUTHOR) |
| Source: | Lithology & Mineral Resources. Dec2023, Vol. 58 Issue 6, p544-557. 14p. |
| Subject Terms: | *SETTLING basins, *SEDIMENTARY structures, *COMPOSITION of sediments, *SEISMITES, *SEDIMENTS, *PARAGENESIS, *PALEOGEOGRAPHY |
| Geographic Terms: | CAUCASUS |
| Abstract: | A comparative analysis of the morphological features of horizons affected by paleoearthquakes revealed significant difference of seismites from lithologically different deposits. Powerful earthquakes determine not only the destruction of the sedimentary structure of near-surface deposits and their chaotic mixing, but also actively affect the underlying layers to a depth of several tens of meters; since the degree of diagenetic lithification of rocks in different horizons varies with depth, the nature of their seismogenic transformations also changes. It was found that major seismic events were associated with the time intervals of tectonic and paleogeographic restructuring of sedimentation basins, which consisted in the intensification of the basin floor subsidence and changes in the composition of sediments accumulated in the paleobasin. A special type of seismites was formed during the impact of earthquakes on siliceous deposits, which have been spanned by the diagenetic redistribution of authigenic mineral matter in a gel state. [ABSTRACT FROM AUTHOR] |
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| Items | – Name: Title Label: Title Group: Ti Data: Seismogenic Structures in Sediments of Different Lithological Composition and Their Position in Mesozoic–Cenozoic Sections of the Northern Caucasus. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Gavrilov%2C+Yu%2E+O%2E%22">Gavrilov, Yu. O.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yugavrilov@gmail.com</i><br /><searchLink fieldCode="AR" term="%22Gatatdinova%2C+Yu%2E+R%2E%22">Gatatdinova, Yu. R.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Lithology+%26+Mineral+Resources%22">Lithology & Mineral Resources</searchLink>. Dec2023, Vol. 58 Issue 6, p544-557. 14p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22SETTLING+basins%22">SETTLING basins</searchLink><br />*<searchLink fieldCode="DE" term="%22SEDIMENTARY+structures%22">SEDIMENTARY structures</searchLink><br />*<searchLink fieldCode="DE" term="%22COMPOSITION+of+sediments%22">COMPOSITION of sediments</searchLink><br />*<searchLink fieldCode="DE" term="%22SEISMITES%22">SEISMITES</searchLink><br />*<searchLink fieldCode="DE" term="%22SEDIMENTS%22">SEDIMENTS</searchLink><br />*<searchLink fieldCode="DE" term="%22PARAGENESIS%22">PARAGENESIS</searchLink><br />*<searchLink fieldCode="DE" term="%22PALEOGEOGRAPHY%22">PALEOGEOGRAPHY</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22CAUCASUS%22">CAUCASUS</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: A comparative analysis of the morphological features of horizons affected by paleoearthquakes revealed significant difference of seismites from lithologically different deposits. Powerful earthquakes determine not only the destruction of the sedimentary structure of near-surface deposits and their chaotic mixing, but also actively affect the underlying layers to a depth of several tens of meters; since the degree of diagenetic lithification of rocks in different horizons varies with depth, the nature of their seismogenic transformations also changes. It was found that major seismic events were associated with the time intervals of tectonic and paleogeographic restructuring of sedimentation basins, which consisted in the intensification of the basin floor subsidence and changes in the composition of sediments accumulated in the paleobasin. A special type of seismites was formed during the impact of earthquakes on siliceous deposits, which have been spanned by the diagenetic redistribution of authigenic mineral matter in a gel state. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Lithology & Mineral Resources is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S0024490223700323 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 14 StartPage: 544 Subjects: – SubjectFull: CAUCASUS Type: general – SubjectFull: SETTLING basins Type: general – SubjectFull: SEDIMENTARY structures Type: general – SubjectFull: COMPOSITION of sediments Type: general – SubjectFull: SEISMITES Type: general – SubjectFull: SEDIMENTS Type: general – SubjectFull: PARAGENESIS Type: general – SubjectFull: PALEOGEOGRAPHY Type: general Titles: – TitleFull: Seismogenic Structures in Sediments of Different Lithological Composition and Their Position in Mesozoic–Cenozoic Sections of the Northern Caucasus. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Gavrilov, Yu. O. – PersonEntity: Name: NameFull: Gatatdinova, Yu. R. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 12 Text: Dec2023 Type: published Y: 2023 Identifiers: – Type: issn-print Value: 00244902 Numbering: – Type: volume Value: 58 – Type: issue Value: 6 Titles: – TitleFull: Lithology & Mineral Resources Type: main |
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