Upper mantle structure around the Trans-European Suture Zone obtained by teleseismic tomography

I. Janutyte, M. Majdanski, P. H. Voss, E. Kozlovskaya, Monika Wilde-Piorko, Wolfram H. Geissler, Jaroslava Plomerova, Marek Grad, Vladislav Babuška, Ewald Bruckl, Jolanta Cyziene, Wojciech Czuba, Richard England, Edward Gaczyński, Renata Gazdova, Soren Gregersen, Aleksander Guterch, Winfried Hanka, E. Hegedűs, Barbara HeuerPetr Jedlička, Jurga Lazauskiene, G. Randy Keller, Rainer Kind, Klaus Klinge, Petr Kolinsky, Kari Komminaho, Elena Kozlovskaya, Frank Kruger, Tine Larsen, Mariusz Majdański, Jiři Malek, Gediminas Motuza, Oldřich Novotny, Robert Pietrasiak, Thomas Plenefisch, Bohuslav Růžek, Saulius Sliaupa, Piotr ͆roda, Marzena ͆wieczak, Timo Tiira, Peter Voss, Paweł Wiejacz

Research output: Contribution to journalArticle

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Abstract

The presented study aims to resolve the upper mantle structure around the Trans-European Suture Zone (TESZ), which is the major tectonic boundary in Europe. The data of 183 temporary and permanent seismic stations operated during the period of the PASsive Seismic Experiment (PASSEQ) 2006-2008 within the study area from Germany to Lithuania was used to compile the data set of manually picked 6008 top-quality arrivals of P waves from teleseismic earthquakes. We used the TELINV nonlinear teleseismic tomography algorithm to perform the inversions. As a result, we obtain a model of P wave velocity variations up to about ±3% with respect to the IASP91 velocity model in the upper mantle around the TESZ. The higher velocities to the east of the TESZ correspond to the older East European Craton (EEC), while the lower velocities to the west of the TESZ correspond to younger western Europe. We find that the seismic lithosphere-asthenosphere boundary (LAB) is more distinct beneath the Phanerozoic part of Europe than beneath the Precambrian part. To the west of the TESZ beneath the eastern part of the Bohemian Massif, the Sudetes Mountains and the Eger Rift, the negative anomalies are observed from a depth of at least 70 km, while under the Variscides the average depth of the seismic LAB is about 100 km. We do not observe the seismic LAB beneath the EEC, but beneath Lithuania we find the thickest lithosphere of about 300 km or more. Beneath the TESZ, the asthenosphere is at a depth of 150-180 km, which is an intermediate value between that of the EEC and western Europe. The results imply that the seismic LAB in the northern part of the TESZ is in the shape of a ramp dipping to the northeasterly direction. In the southern part of the TESZ, the LAB is shallower, most probably due to younger tectonic settings. In the northern part of the TESZ we do not recognize any clear contact between Phanerozoic and Proterozoic Europe, but further to the south we may refer to a sharp and steep contact on the eastern edge of the TESZ. Moreover, beneath Lithuania at depths of 120-150 km, we observe the lower velocity area following the boundary of the proposed paleosubduction zone.

Original languageEnglish
Pages (from-to)73-91
Number of pages19
JournalSolid Earth
Volume6
Issue number1
DOIs
Publication statusPublished - Jan 16 2015

Fingerprint

mantle structure
tomography
suture zone
sutures
asthenosphere
Tomography
upper mantle
lithosphere
Earth mantle
Lithuania
cratons
Tectonics
P waves
craton
low speed
tectonics
Western European region
Phanerozoic
P-wave
Earthquakes

ASJC Scopus subject areas

  • Soil Science
  • Earth-Surface Processes
  • Geochemistry and Petrology
  • Geology
  • Geophysics
  • Palaeontology
  • Stratigraphy

Cite this

Janutyte, I., Majdanski, M., Voss, P. H., Kozlovskaya, E., Wilde-Piorko, M., Geissler, W. H., ... Wiejacz, P. (2015). Upper mantle structure around the Trans-European Suture Zone obtained by teleseismic tomography. Solid Earth, 6(1), 73-91. https://doi.org/10.5194/se-6-73-2015

Upper mantle structure around the Trans-European Suture Zone obtained by teleseismic tomography. / Janutyte, I.; Majdanski, M.; Voss, P. H.; Kozlovskaya, E.; Wilde-Piorko, Monika; Geissler, Wolfram H.; Plomerova, Jaroslava; Grad, Marek; Babuška, Vladislav; Bruckl, Ewald; Cyziene, Jolanta; Czuba, Wojciech; England, Richard; Gaczyński, Edward; Gazdova, Renata; Gregersen, Soren; Guterch, Aleksander; Hanka, Winfried; Hegedűs, E.; Heuer, Barbara; Jedlička, Petr; Lazauskiene, Jurga; Keller, G. Randy; Kind, Rainer; Klinge, Klaus; Kolinsky, Petr; Komminaho, Kari; Kozlovskaya, Elena; Kruger, Frank; Larsen, Tine; Majdański, Mariusz; Malek, Jiři; Motuza, Gediminas; Novotny, Oldřich; Pietrasiak, Robert; Plenefisch, Thomas; Růžek, Bohuslav; Sliaupa, Saulius; ͆roda, Piotr; ͆wieczak, Marzena; Tiira, Timo; Voss, Peter; Wiejacz, Paweł.

In: Solid Earth, Vol. 6, No. 1, 16.01.2015, p. 73-91.

Research output: Contribution to journalArticle

Janutyte, I, Majdanski, M, Voss, PH, Kozlovskaya, E, Wilde-Piorko, M, Geissler, WH, Plomerova, J, Grad, M, Babuška, V, Bruckl, E, Cyziene, J, Czuba, W, England, R, Gaczyński, E, Gazdova, R, Gregersen, S, Guterch, A, Hanka, W, Hegedűs, E, Heuer, B, Jedlička, P, Lazauskiene, J, Keller, GR, Kind, R, Klinge, K, Kolinsky, P, Komminaho, K, Kozlovskaya, E, Kruger, F, Larsen, T, Majdański, M, Malek, J, Motuza, G, Novotny, O, Pietrasiak, R, Plenefisch, T, Růžek, B, Sliaupa, S, ͆roda, P, ͆wieczak, M, Tiira, T, Voss, P & Wiejacz, P 2015, 'Upper mantle structure around the Trans-European Suture Zone obtained by teleseismic tomography', Solid Earth, vol. 6, no. 1, pp. 73-91. https://doi.org/10.5194/se-6-73-2015
Janutyte I, Majdanski M, Voss PH, Kozlovskaya E, Wilde-Piorko M, Geissler WH et al. Upper mantle structure around the Trans-European Suture Zone obtained by teleseismic tomography. Solid Earth. 2015 Jan 16;6(1):73-91. https://doi.org/10.5194/se-6-73-2015
Janutyte, I. ; Majdanski, M. ; Voss, P. H. ; Kozlovskaya, E. ; Wilde-Piorko, Monika ; Geissler, Wolfram H. ; Plomerova, Jaroslava ; Grad, Marek ; Babuška, Vladislav ; Bruckl, Ewald ; Cyziene, Jolanta ; Czuba, Wojciech ; England, Richard ; Gaczyński, Edward ; Gazdova, Renata ; Gregersen, Soren ; Guterch, Aleksander ; Hanka, Winfried ; Hegedűs, E. ; Heuer, Barbara ; Jedlička, Petr ; Lazauskiene, Jurga ; Keller, G. Randy ; Kind, Rainer ; Klinge, Klaus ; Kolinsky, Petr ; Komminaho, Kari ; Kozlovskaya, Elena ; Kruger, Frank ; Larsen, Tine ; Majdański, Mariusz ; Malek, Jiři ; Motuza, Gediminas ; Novotny, Oldřich ; Pietrasiak, Robert ; Plenefisch, Thomas ; Růžek, Bohuslav ; Sliaupa, Saulius ; ͆roda, Piotr ; ͆wieczak, Marzena ; Tiira, Timo ; Voss, Peter ; Wiejacz, Paweł. / Upper mantle structure around the Trans-European Suture Zone obtained by teleseismic tomography. In: Solid Earth. 2015 ; Vol. 6, No. 1. pp. 73-91.
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T1 - Upper mantle structure around the Trans-European Suture Zone obtained by teleseismic tomography

AU - Janutyte, I.

AU - Majdanski, M.

AU - Voss, P. H.

AU - Kozlovskaya, E.

AU - Wilde-Piorko, Monika

AU - Geissler, Wolfram H.

AU - Plomerova, Jaroslava

AU - Grad, Marek

AU - Babuška, Vladislav

AU - Bruckl, Ewald

AU - Cyziene, Jolanta

AU - Czuba, Wojciech

AU - England, Richard

AU - Gaczyński, Edward

AU - Gazdova, Renata

AU - Gregersen, Soren

AU - Guterch, Aleksander

AU - Hanka, Winfried

AU - Hegedűs, E.

AU - Heuer, Barbara

AU - Jedlička, Petr

AU - Lazauskiene, Jurga

AU - Keller, G. Randy

AU - Kind, Rainer

AU - Klinge, Klaus

AU - Kolinsky, Petr

AU - Komminaho, Kari

AU - Kozlovskaya, Elena

AU - Kruger, Frank

AU - Larsen, Tine

AU - Majdański, Mariusz

AU - Malek, Jiři

AU - Motuza, Gediminas

AU - Novotny, Oldřich

AU - Pietrasiak, Robert

AU - Plenefisch, Thomas

AU - Růžek, Bohuslav

AU - Sliaupa, Saulius

AU - ͆roda, Piotr

AU - ͆wieczak, Marzena

AU - Tiira, Timo

AU - Voss, Peter

AU - Wiejacz, Paweł

PY - 2015/1/16

Y1 - 2015/1/16

N2 - The presented study aims to resolve the upper mantle structure around the Trans-European Suture Zone (TESZ), which is the major tectonic boundary in Europe. The data of 183 temporary and permanent seismic stations operated during the period of the PASsive Seismic Experiment (PASSEQ) 2006-2008 within the study area from Germany to Lithuania was used to compile the data set of manually picked 6008 top-quality arrivals of P waves from teleseismic earthquakes. We used the TELINV nonlinear teleseismic tomography algorithm to perform the inversions. As a result, we obtain a model of P wave velocity variations up to about ±3% with respect to the IASP91 velocity model in the upper mantle around the TESZ. The higher velocities to the east of the TESZ correspond to the older East European Craton (EEC), while the lower velocities to the west of the TESZ correspond to younger western Europe. We find that the seismic lithosphere-asthenosphere boundary (LAB) is more distinct beneath the Phanerozoic part of Europe than beneath the Precambrian part. To the west of the TESZ beneath the eastern part of the Bohemian Massif, the Sudetes Mountains and the Eger Rift, the negative anomalies are observed from a depth of at least 70 km, while under the Variscides the average depth of the seismic LAB is about 100 km. We do not observe the seismic LAB beneath the EEC, but beneath Lithuania we find the thickest lithosphere of about 300 km or more. Beneath the TESZ, the asthenosphere is at a depth of 150-180 km, which is an intermediate value between that of the EEC and western Europe. The results imply that the seismic LAB in the northern part of the TESZ is in the shape of a ramp dipping to the northeasterly direction. In the southern part of the TESZ, the LAB is shallower, most probably due to younger tectonic settings. In the northern part of the TESZ we do not recognize any clear contact between Phanerozoic and Proterozoic Europe, but further to the south we may refer to a sharp and steep contact on the eastern edge of the TESZ. Moreover, beneath Lithuania at depths of 120-150 km, we observe the lower velocity area following the boundary of the proposed paleosubduction zone.

AB - The presented study aims to resolve the upper mantle structure around the Trans-European Suture Zone (TESZ), which is the major tectonic boundary in Europe. The data of 183 temporary and permanent seismic stations operated during the period of the PASsive Seismic Experiment (PASSEQ) 2006-2008 within the study area from Germany to Lithuania was used to compile the data set of manually picked 6008 top-quality arrivals of P waves from teleseismic earthquakes. We used the TELINV nonlinear teleseismic tomography algorithm to perform the inversions. As a result, we obtain a model of P wave velocity variations up to about ±3% with respect to the IASP91 velocity model in the upper mantle around the TESZ. The higher velocities to the east of the TESZ correspond to the older East European Craton (EEC), while the lower velocities to the west of the TESZ correspond to younger western Europe. We find that the seismic lithosphere-asthenosphere boundary (LAB) is more distinct beneath the Phanerozoic part of Europe than beneath the Precambrian part. To the west of the TESZ beneath the eastern part of the Bohemian Massif, the Sudetes Mountains and the Eger Rift, the negative anomalies are observed from a depth of at least 70 km, while under the Variscides the average depth of the seismic LAB is about 100 km. We do not observe the seismic LAB beneath the EEC, but beneath Lithuania we find the thickest lithosphere of about 300 km or more. Beneath the TESZ, the asthenosphere is at a depth of 150-180 km, which is an intermediate value between that of the EEC and western Europe. The results imply that the seismic LAB in the northern part of the TESZ is in the shape of a ramp dipping to the northeasterly direction. In the southern part of the TESZ, the LAB is shallower, most probably due to younger tectonic settings. In the northern part of the TESZ we do not recognize any clear contact between Phanerozoic and Proterozoic Europe, but further to the south we may refer to a sharp and steep contact on the eastern edge of the TESZ. Moreover, beneath Lithuania at depths of 120-150 km, we observe the lower velocity area following the boundary of the proposed paleosubduction zone.

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