Results 11 to 20 of about 217 (124)

Interaction between accretionary thrust faulting and slope sedimentation at the frontal Makran accretionary prism and its implications for hydrocarbon fluid seepage [PDF]

Journal of Geophysical Research: Solid Earth, 2010
Using high‐resolution seismic profiles and other geophysical data, collected during R/V Meteor Cruise M74/2, we investigate the distribution patterns of shallow sediments, their structure and deformation processes, and their role in the migration, accumulation and seepage of hydrocarbon‐rich fluids.
Ding, Feng, Spiess, Volkhard, Fekete, Noemi, Murton, Bramley, Brüning, Markus, Bohrmann, Gerhard   +5 more
openaire   +4 more sources

Assessment of gas-hydrate saturations in the Makran accretionary prism using the offset dependence of seismic amplitudes [PDF]

Geophysics, 2010
Abstract We estimate the saturations of gas hydrate and free gas based on measurements of seismic-reflection amplitude variation with offset (AVO) for a bottom-simulating reflector coupled with rock-physics modeling. When we apply the approach to data from a seismic line in the Makran accretionary prism in the Arabian Sea, the results
Ohja, Mahresawr, Sain, Kalachand, Minshull, Timothy A.   +2 more
openaire   +3 more sources

Modeling of contribution of the Late Cretaceous-Miocene sediments of the Makran accretionary wedge to the petrogenesis of basalts from Makran volcanic arc, SE Iran [PDF]

پترولوژی
Introduction Makran geological province of SE Iran is an east-west trending mountain range related to the Cretaceous-to-recent subduction of the Indian oceanic lithosphere beneath the southeastern edge of the Eurasian plate (McCall, 1997; Saccani et al.,
Ali Ahmadi, Mostafa Ghomashi, Zahra Firouzkouhi, Marzie Rastay zahedan   +3 more
doaj   +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 below.
Maheswar Ojha, Kalachand Sain
openaire   +3 more sources

Controls on the geometry and evolution of thin-skinned fold-thrust belts, and applications to the Makran accretionary prism and Indo–Burman Ranges [PDF]

Geophysical Journal International, 2019
The formation of fold-thrust belts at convergent margins is a dynamic process. Accretion of weak sediments to the front of the overriding plate results in crustal thickening and continued flexural subsidence of the underthrusting plate. Fold-thrust belts are often treated as a Coulomb wedge having self-similar geometries with a critical taper, and ...
Ball, Thomasina, Penney, Camilla, Neufeld, Jerome, Copley, Alex   +3 more
openaire   +4 more sources

The deformation pattern of subducting seamount: insights from the structural evolution of the Late Cretaceous Durkan Complex in the North Makran domain (Makran Accretionary Prism, SE Iran)

, 2022
The occurrence of topographic relief along the subducting plate is thought to play a significant role in controlling the architecture and the deformation processes of subduction complexes Seamounts and seamounts chain represent topographic reliefs of ...
Barbero, Edoardo, Marroni, Michele, Di Rosa, Maria, Zaccarini, Federica, Pandolfi, Luca, Dolati, Asghar, Delavari, Morteza, Saccani, Emilio   +7 more
core   +2 more sources

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

Mineral chemistry and chromite mineralization in the Qaranaz-Alamkandi area, west Zanjan

Journal of Economic Geology, 2021
Introduction Malek Ghasemi and Karimzadeh Somarin (2005) reported that Chromite deposits in Iran occur in Paleozoic and Mesozoic ophiolite complexes in association with serpentinite and serpentinized peridotites and dunites (Ghazi et al., 2004; Shafaii ...
Parham Ahrabian Fard, Ghasem Nabatian, Mir Ali Asghar Mokhtari , Maryam Honarmand , Hossein Kouhestani   +4 more
doaj   +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