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The Deep Velocity Structure of the Central Kola Peninsula Obtained using the Receiver Function Technique

Authors
  • Adushkin, V. V.1
  • Goev, A. G.1, 2
  • Sanina, I. A.1
  • Fedorov, A. V.3
  • 1 Sadovskii Institute of Geospheric Dynamics, Russian Academy of Sciences, Moscow, 119334, Russia , Moscow (Russia)
  • 2 Geological Institute, Kola Science Center, Russian Academy of Sciences, Apatity, 184209, Russia , Apatity (Russia)
  • 3 Federal Research Center Geophysical Survey, Kola Branch, Russian Academy of Sciences, Apatity, 184209, Russia , Apatity (Russia)
Type
Published Article
Journal
Doklady Earth Sciences
Publisher
Pleiades Publishing
Publication Date
Dec 30, 2021
Volume
501
Issue
2
Pages
1049–1051
Identifiers
DOI: 10.1134/S1028334X21120011
Source
Springer Nature
Keywords
Disciplines
  • Geodynamics
License
Yellow

Abstract

AbstractNew results are presented on the features of the deep velocity structure of two of the three main tectonic blocks that make up the Kola region—Murmansk and Belomorskii—by the P receiver function technique. The research is based on data from the broadband seismic stations Teriberka and Kovda. The results are compared with the models obtained by mutual inversion of PRF and SRF using the data from the stations Apatity and Lovozero. It is shown that the crust has a two-layer structure with the border at a depth of 11 km under the Murmansk block and at a depth of 15 km under the Kola and Belomorskii blocks. The crust thickness of the Murmansk, Belomorskii, and Kola blocks are 35, 33, and 40 km, respectively. The presence of the MLD was revealed in all tectonic structures analyzed for the first time, with a top at a depth of about 70 km for the Murmansk and Belomorskii blocks and 90 km for the Kola block and a bottom at 130–140 km for all structures.

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