The pattern of the paleo- and present-day stresses of Northern Tien Shan.
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| Title: | The pattern of the paleo- and present-day stresses of Northern Tien Shan. |
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| Authors: | Sim, L.1 sim@ifz.ru, Sycheva, N.2 nelya@gdirc.ru, Sychev, V.2, Marinin, A.1 |
| Source: | Izvestiya, Physics of the Solid Earth. May2014, Vol. 50 Issue 3, p378-392. 15p. |
| Subject Terms: | *Neotectonics, *Geodynamics, *Geologic faults, *Paleogeophysics, *Seismology, *Geological research |
| Geographic Terms: | Tien Shan |
| Abstract: | The study of neotectonic stresses of the North Tien Shan is carried out within the northern slopes of the Kyrgyz Ridge bordering the Chyua submontane depression. The purpose of the study was to reconstruct the neotectonic stresses from the geological indicators and to compare the obtained results with the data on the present-day stress state of this region. The work is based on the analysis of the field in situ data acquired in the expeditions in 2009 and 2011. For the first time for the Northern Tien Shan region, the general (averaged) neotectonic stresses, which are distinct between the uplifts and depressions, are reconstructed. The deformation of the positive topographic features at the recent tectonic stage takes place in the conditions of thrust faulting with the meriodional horizontal compression axis and subvertical tension axis, while deformation of the negative landforms is dominated by normal faulting with the vertical compression axis and northnortheast trending subhorizontal tension axis. Based on the field data, separate sites with different types of local stress tensors, which are determined by the Lode-Nadai parameter, are revealed. The neotectonic geodynamical regime within the depressions and uplifts and the variations in the type of the stress tensor agree with the characteristics of the present-day stress state reconstructed from seismological data. [ABSTRACT FROM AUTHOR] |
| Database: | Energy & Power Source |
| FullText | Links: – Type: pdflink Text: Availability: 0 |
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| Header | DbId: enr DbLabel: Energy & Power Source An: 95890691 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: The pattern of the paleo- and present-day stresses of Northern Tien Shan. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sim%2C+L%2E%22">Sim, L.</searchLink><relatesTo>1</relatesTo><i> sim@ifz.ru</i><br /><searchLink fieldCode="AR" term="%22Sycheva%2C+N%2E%22">Sycheva, N.</searchLink><relatesTo>2</relatesTo><i> nelya@gdirc.ru</i><br /><searchLink fieldCode="AR" term="%22Sychev%2C+V%2E%22">Sychev, V.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Marinin%2C+A%2E%22">Marinin, A.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Izvestiya%2C+Physics+of+the+Solid+Earth%22">Izvestiya, Physics of the Solid Earth</searchLink>. May2014, Vol. 50 Issue 3, p378-392. 15p. – Name: Subject Label: Subject Terms Group: Su Data: *<searchLink fieldCode="DE" term="%22Neotectonics%22">Neotectonics</searchLink><br />*<searchLink fieldCode="DE" term="%22Geodynamics%22">Geodynamics</searchLink><br />*<searchLink fieldCode="DE" term="%22Geologic+faults%22">Geologic faults</searchLink><br />*<searchLink fieldCode="DE" term="%22Paleogeophysics%22">Paleogeophysics</searchLink><br />*<searchLink fieldCode="DE" term="%22Seismology%22">Seismology</searchLink><br />*<searchLink fieldCode="DE" term="%22Geological+research%22">Geological research</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Tien+Shan%22">Tien Shan</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The study of neotectonic stresses of the North Tien Shan is carried out within the northern slopes of the Kyrgyz Ridge bordering the Chyua submontane depression. The purpose of the study was to reconstruct the neotectonic stresses from the geological indicators and to compare the obtained results with the data on the present-day stress state of this region. The work is based on the analysis of the field in situ data acquired in the expeditions in 2009 and 2011. For the first time for the Northern Tien Shan region, the general (averaged) neotectonic stresses, which are distinct between the uplifts and depressions, are reconstructed. The deformation of the positive topographic features at the recent tectonic stage takes place in the conditions of thrust faulting with the meriodional horizontal compression axis and subvertical tension axis, while deformation of the negative landforms is dominated by normal faulting with the vertical compression axis and northnortheast trending subhorizontal tension axis. Based on the field data, separate sites with different types of local stress tensors, which are determined by the Lode-Nadai parameter, are revealed. The neotectonic geodynamical regime within the depressions and uplifts and the variations in the type of the stress tensor agree with the characteristics of the present-day stress state reconstructed from seismological data. [ABSTRACT FROM AUTHOR] |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1134/S1069351314030100 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 15 StartPage: 378 Subjects: – SubjectFull: Neotectonics Type: general – SubjectFull: Geodynamics Type: general – SubjectFull: Geologic faults Type: general – SubjectFull: Paleogeophysics Type: general – SubjectFull: Seismology Type: general – SubjectFull: Geological research Type: general – SubjectFull: Tien Shan Type: general Titles: – TitleFull: The pattern of the paleo- and present-day stresses of Northern Tien Shan. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sim, L. – PersonEntity: Name: NameFull: Sycheva, N. – PersonEntity: Name: NameFull: Sychev, V. – PersonEntity: Name: NameFull: Marinin, A. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 05 Text: May2014 Type: published Y: 2014 Identifiers: – Type: issn-print Value: 10693513 Numbering: – Type: volume Value: 50 – Type: issue Value: 3 Titles: – TitleFull: Izvestiya, Physics of the Solid Earth Type: main |
| ResultId | 1 |
