نتایج جستجو برای: himalayan orogenic belt
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[1] Orogenic structure appears to be partially controlled by the addition to and removal of material from the mountain belt by tectonic accretion and geomorphic erosion, respectively. We developed a coupled erosion-deformation model for orogenic wedges that are in erosional steady state and deform at their Coulomb failure limit. Erosional steady state is reached when all material introduced int...
The oblique collision between the northeastern margin of Arabian platform and Iranian microcontinent has led to transpressional deformation in Zagros orogenic belt central part Alpine–Himalayan belt. Although previous articles have emphasized dextral sense shear belt, this paper, using several indicators kinematic upon field checking microscopic thin-section studies, evidence development a sini...
Article history: The Himalayan orogenic bel Received 27 September 2007 Received in revised form 14 April 2008 Accepted 16 April 2008 Available online 3 May 2008
Based mainly on field geological observation and geochronologic data, six tectonic units have been recognized in western Inner Mongolia (China), including, from south to north: North China Craton (NCC), Southern Orogenic Belt (SOB), Hunshandake Block (HB), Northern Orogenic Belt (NOB), South Mongolia microcontinent (SMM), and Southern margin of Ergun Block (SME), suggesting that the tectonic fr...
South China, composed of the Yangtze and Cathaysia Blocks and the intervening Jiangnan orogenic belt, has been central to the debate on the tectonic evolution of East Asia. Here we investigate the crustal structure and composition of South China from seismic data employing the H-k stacking technique. Our results show that the composition and seismic structure of the crust in the Jiangnan orogen...
Ophiolitic rocks in the southeastern part of the Zagros Orogenic Belt can be separated from southwest to northeast, into two groups: the Neyriz ophiolites and the Naien–Shahrebabak–Baft ophiolites. The southeast sector of Sanandaj-Sirjan wasdelimited by the two nearly synchronous ophiolitic belts in its southwestern and northeastern margins. In this study, new ophiolitic formation models were u...
Regional metamorphism occurs in plate boundary zones. Accretionary orogenic systems form at subduction boundaries in the absence of continent collision, whereas collisional orogenic systems form where ocean basins close and subduction steps back and flips (arc collisions), simply steps back and continues with the same polarity (block and terrane collisions) or ultimately ceases (continental col...
The link between orogenic activity and foreland basin stratigraphy is well established; however, potential controls by foreland basin stratigraphy on thrust belt architecture have not been fully evaluated. Mechanical properties of typical foreland basin stratigraphic successions influence the structural development of fold-thrust belts in predictable ways. Fundamental features of foreland basin...
, Earth Sci. Frontiers, 12(2), 247–262.Xu, C., Z. Zhou, P. Van Den Haute, R. A. Donelick,J. De Grave, M. A. Changqian, and P. W. Reiners (2005), Apatite fission track geochronology and itstectonic correlation in the Dabieshan orogen,central China, Sci. China, Ser. D, 48, 506–520.Xue, F., A. Kröner, T. Reischmann, and F. Lerch(1996a), Palaeozoic preand post-collision calc...
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