The Zagros orogeny in Iran is associated with two successive geodynamic events during the Tertiary period, a Paleogene NE-directed regional crustal extension followed by a Miocene NW-directed regional crustal extension and a magmatic flare-up. The current study was undertaken to reanalyze previous structural work developed on the extensional Chapedony metamorphic core complex in Central Iran ex...

The Messina Strait, that separates peninsular Italy from Sicily, is one of the most seismically active areas of the Mediterranean. The structure and seismotectonic setting of the region are poorly understood, although the area is highly populated and important infrastructures are planned there. New seismic reflection data have identified a number of faults, as well as a crustal scale NE-trendin...

Abstract An earthquake sequence in the Storfjorden offshore area southwest of Spitsbergen Svalbard archipelago initiated with a 21 February 2008 magnitude Mw 6.1 event. This had previously not produced any significant earthquakes, but between and 2020, total ?2800 earthquakes were detected, ?16 them being moderate size (ML?4.0). Applying double-difference relocation to improve relative location...

Large-scale strike-slip faults are associated with significant strain partitioning in releasing/restraining bends and often display map-view curvatures ending horse-tail geometries. Such commonly indentation tectonics, where shortening front of indenters is transferred laterally to transpression, the formation transtensional/extensional basins. We investigate how these structurally distinct dom...

We present a velocity and strain rate model for the northern Walker Lane derived from a compilation of geodetic velocities and corrected for transient effects owing to historic earthquakes on the Central Nevada seismic belt. We fi nd that from 37°N to 40°N, the Walker Lane is characterized by an ~100-km-wide zone with near-constant strain rates associated with ~10 mm yr total motion across the ...

Extensional and transtensional continental arc basins preserve very thick, continuous sequences and are an important contributor to the growth of continents; therefore, it is important to understand how they evolve. In this chapter, I describe four continental arc basin types, using Mesozoic to Cenozoic case studies from the SW US: (1) early-stage, low-lying extensional; (2) early-stage, low-ly...

Transform continental margins play a major role in plate tectonics. In the last 10 years' petroleum exploration has moved to hunt of stratigraphic traps passive margin sequence continent-ocean transforms. The result been drastic increase modern deep seismic data and more well calibrations. Considered as one longest transform boundaries, Davie system (East Africa) is best places investigate evol...