Results 11 to 20 of about 3,754 (159)

Viscous Accretionary Prisms: Viscoelastic Relaxation of the Makran Accretionary Prism Following the 2013 Baluchistan, Pakistan Earthquake [PDF]

Journal of Geophysical Research: Solid Earth, 2018
Geodetic observations of postseismic transients following earthquakes commonly help to inform the rheology of the lower crust and mantle, frictional properties of faults, and the kinematics of deformation across the earthquake cycle.
K. Peterson, W. Barnhart, Shaoyang Li
semanticscholar   +2 more sources

Seismic Attributes for Identifying Gas-Hydrates and Free-Gas Zones: Application to the Makran Accretionary Prism

Episodes, 2009
The most commonly used marker for gas-hydrates is a bottom simulating reflector or BSR on seismic section. The BSR is not a lithological interface but a physical boundary between the gas-hydrates bearing sediments above and free-gas saturated sediments ...
M. Ojha, K. Sain
semanticscholar   +3 more sources

The structure and fault activity of the Makran accretionary prism [PDF]

Journal of Geophysical Research: Solid Earth, 2012
The Makran Subduction Zone has the highest incoming sediment thickness (up to 7.5 km) of any subduction zone. These sediments have formed a wide accretionary prism (∼400 km). Seismicity in the Makran is generally low; however the margin experienced an Mw 8.1 earthquake in 1945 which generated a significant regional tsunami.
Gemma L. Smith, L. McNeill, T. Henstock, J. Bull   +3 more
semanticscholar   +3 more sources

Geochemistry of basaltic blueschists from the Deyader Metamorphic Complex (Makran Accretionary Prism, SE Iran): New constraints for magma generation in the Makran sector of the Neo-Tethys

Journal of Asian Earth Sciences, 2022
The North Makran Domain in the Makran Accretionary Prism consists of an imbricate stack of Mesozoic Neo Tethyan ophiolitic and metaophiolitic units. The Deyader Complex is an important metamorphic unit of this Domain and includes tectonic slices of HP-LT blueschists derived from upper oceanic crust protoliths. The volcanic protoliths consist of basalts
E. Saccani, M. Delavari, A. Dolati, L. Pandolfi, Edoardo Barbero, R. Tassinari, M. Marroni   +6 more
semanticscholar   +6 more sources

A New Lithospheric Density and Magnetic Susceptibility Model of Iran, Starting From High‐Resolution Seismic Tomography

Journal of Geophysical Research: Solid Earth, Volume 128, Issue 12, December 2023., 2023
Abstract We propose a new model for the crust and upper mantle in Iran by joint inversion of gravity and magnetic fields, constrained with a seismic tomography model. We then calculate shear modulus from the Vs velocities and densities. The crust and mantle tomography model is first converted to a density cube through empirical and petrological ...
G. Maurizio, C. Braitenberg, D. Sampietro, M. Capponi   +3 more
wiley   +1 more source

Tectono‐Sedimentary Evolution of Shale‐Related Minibasins in the Karvandar Basin (South Sistan, SE Iran): Insights From Magnetostratigraphy, Isotopic Dating, and Sandstone Petrology

Tectonics, Volume 42, Issue 11, November 2023., 2023
Abstract Sediments deposited into foreland basins can provide valuable insights related to the geological evolution of their hinterlands. Located in the peripheral foreland of the South Sistan Suture Zone (SE Iran), the Karvandar Basin exhibits a several‐kilometer‐thick shallow‐marine to continental clastic sedimentary sequence forming elongated sub ...
J. B. Ruh, L. Valero, M. Najafi, N. Etemad‐Saeed, J. Vouga, A. Mohammadi, F. Landtwing, M. Guillong, M. Cobianchi, N. Mancin   +9 more
wiley   +1 more source

Diverse Deformation Mechanisms and Lithologic Controls in an Active Orogenic Wedge: Structural Geology and Thermochronometry of the Eastern Greater Caucasus

Tectonics, Volume 41, Issue 12, December 2022., 2022
Abstract Orogenic wedges are common at convergent plate margins and deform internally to maintain a self‐similar geometry during growth. New structural mapping and thermochronometry data illustrate that the eastern Greater Caucasus mountain range of western Asia undergoes deformation via distinct mechanisms that correspond with contrasting lithologies ...
A. R. Tye, N. A. Niemi, E. Cowgill, F. A. Kadirov, G. R. Babayev   +4 more
wiley   +1 more source

Subduction and Slab Detachment Under Moving Trenches During Ongoing India‐Asia Convergence

Geochemistry, Geophysics, Geosystems, Volume 23, Issue 11, November 2022., 2022
Abstract The dynamics of slab detachment and associated geological fingerprints have been inferred from various numerical and analog models. These invariably use a setup with slab‐pull‐driven convergence in which a slab detaches below a mantle‐stationary trench after the arrest of plate convergence due to arrival of continental lithosphere. In contrast,
Abdul Qayyum, Nalan Lom, Eldert L. Advokaat, Wim Spakman, Douwe G. van der Meer, Douwe J. J. van Hinsbergen   +5 more
wiley   +1 more source

Automated gas bubble imaging at sea floor – a new method of in situ gas flux quantification [PDF]

Ocean Science, 2010
Photo-optical systems are common in marine sciences and have been extensively used in coastal and deep-sea research. However, due to technical limitations in the past photo images had to be processed manually or semi-automatically.
G. Bohrmann, H. Sahling, O. Zielinski, K. Thomanek   +3 more
doaj   +1 more source

Off‐Fault Deformation in Regions of Complex Fault Geometries: The 2013, Mw7.7, Baluchistan Rupture (Pakistan)

Journal of Geophysical Research: Solid Earth, Volume 127, Issue 11, November 2022., 2022
Abstract Observations of recent earthquake surface ruptures show that ground deformations include a localized component occurring on faults, and an off‐fault component affecting the surrounding medium. This second component is also referred to as off‐fault deformation (OFD).
S. L. Antoine, Y. Klinger, A. Delorme, R. D. Gold   +3 more
wiley   +1 more source