skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Strike-slip fault tectogenesis in formation of the East Sikhote-Alin volcano-plutonic belt: Structural and dynamic analysis

Litosfera (Ekaterinburg. Online), 2020-08, Vol.20 (4), p.528-541 [Peer Reviewed Journal]

ISSN: 1681-9004 ;EISSN: 2500-302X ;DOI: 10.24930/1681-9004-2020-20-4-528-541

Full text available

Citations Cited by
  • Title:
    Strike-slip fault tectogenesis in formation of the East Sikhote-Alin volcano-plutonic belt: Structural and dynamic analysis
  • Author: Utkin, V. P. ; Mitrokhin, A. N. ; Nevolin, P. L. ; Yushmanov, Y. P.
  • Subjects: east asian global strike-slip fault zone ; east asian volcanic belt ; east sikhote-alin volcano-plutonic belt ; strike-slip related tectogenesis ; volcano-tectonic extension structures
  • Is Part Of: Litosfera (Ekaterinburg. Online), 2020-08, Vol.20 (4), p.528-541
  • Description: Study object . The role of strike-slip fault tectogenesis in magmatism of the large (North Eastern Primorye) fragment of the Eastern Sikhote-Alin volcano-plutonic belt (ESAVPB) is studied. Materials and methods. The materials of geological mapping and field geostructural thematic-line research are used. Study methods are based on the concept of the geostructural patterns being formed by lateral, namely, strike-slip movements of crustal blocks. Results. There is recognized the system of the NE-trending sinistral faults, whose activation taken place during two stages. The pre-Late-Cretaceous fold-and-strike-slip-fault (orogenic) stage is characterized by the widely developed fold system within the stratified formations covering active strike-slip faults of the pre-Mesozoic consolidated basement. By the Late Cretaceous, the strike-slip faults cut the fold system into narrow blocks, creating the preconditions for the strike-slip faults’ activation during the next destructionand-strike-slip-fault (riftogenic) stage (Late Cretaceous – Cenozoic). During the latter, the strike-slip faults were activated under transtension (strike slip with extension) with formation of volcano-tectonic extension structures (VTES) nearcrosswise the strike-slip faults. The VTES played, on the one hand, the role of magma-feeding channels. On the other hand, the extension caused preconditions for formation of the depression subsidences that accumulated large volumes of the volcanics covering and «crosslinking» the VTES, resulting in wide development of volcanic covers within the ESAVPB. Conclusion. The VTES’ opening is thereby the effect of lateral (strike-slip) displacements of continental geoblocks that is not consistent with a priori ideas of the development of the East Sikhote-Alin volcano-plutonic belt under the oceanic plates’ subduction. The resulting materials complement the formulations according to which the East Asian volcanic belt formed under the structural-and-dynamic conditions being caused by the evolution of the East Asian global strike-slip fault zone resulting from displacement of the Asian continent to the south-west under the Earth’s rotational geodynamics.
  • Publisher: A.N. Zavaritsky Institute of Geology and Geochemistry
  • Language: English
  • Identifier: ISSN: 1681-9004
    EISSN: 2500-302X
    DOI: 10.24930/1681-9004-2020-20-4-528-541
  • Source: DOAJ Directory of Open Access Journals
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait