Mapping tectonic deformation in the crust and upper mantle beneath Europe and the North Atlantic Ocean

Hejun Zhu, Jeroen Tromp

Research output: Contribution to journalArticle

52 Scopus citations

Abstract

We constructed a three-dimensional azimuthally anisotropic model of Europe and the North Atlantic Ocean based on adjoint seismic tomography. Several features are well correlated with historical tectonic events in this region, such as extension along the North Atlantic Ridge, trench retreat in the Mediterranean, and counterclockwise rotation of the Anatolian Plate. Beneath northeastern Europe, the direction of the fast anisotropic axis follows trends of ancient rift systems older than 350 million years, suggesting "frozen-in" anisotropy related to the formation of the craton. Local anisotropic strength profiles identify the brittle-ductile transitions in lithospheric strength. In continental regions, these profiles also identify the lower crust, characterized by ductile flow. The observed anisotropic fabric is generally consistent with the current surface strain rate measured by geodetic surveys.

Original languageEnglish (US)
Pages (from-to)871-875
Number of pages5
JournalScience
Volume341
Issue number6148
DOIs
StatePublished - Jan 1 2013

All Science Journal Classification (ASJC) codes

  • General

Fingerprint Dive into the research topics of 'Mapping tectonic deformation in the crust and upper mantle beneath Europe and the North Atlantic Ocean'. Together they form a unique fingerprint.

  • Cite this