From the Late Triassic to the Early Jurassic, the tectonic belt on the north side of the QDOB was thrust from south to north, forcing the Proterozoic metamorphic rocks onto the …
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Zagros fold and thrust belt locate to the north and northeast of the Arabian Plate and is part of the Alpine- Himalayan belt. ... (Fig.5). Figure 4: Tectonic settings of the Zagros fold and thrust belt showing the major tectonic belts [modified after 16] 76 Maher T. Zainy et al. Figure 5: Simplified transverse cross section of the Zagros active ...
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The near east–west tectonic belt in the early Mesozoic was superimposed with the north-northeast tectonic belt in the late Mesozoic and vertical uplifting structures with intermediate-acid intrusive rocks and crystalline basement as the core, which formed the basic Mesozoic tectonic pattern (Wang et al., 2018). A succession of volcanic strata ...
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Schuppen belt on the east and southeast and Arunachal Himalaya to the North and North- East (Fig. 1). Being bounded by eastern Himalayan fold belts on the north and Naga-Patkai fold belts on the east-southeast, it constitutes a vast intermontane basin. Most of its geological features are concealed by the recent alluvial cover. STRATIGRAPHIC OUTLINE
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1. Introduction. The Lajishan tectonic belt (LTB) is the most-recently active orogenic belt in the northeastern Tibetan Plateau, and has experienced many episodes of strong tectonism (Clark and Royden, 2000, Lease et al., 2011, Lease et al., 2012, Zuo et al., 2001, Yuan et al., 2013).The northern bounding thrust fault placed early Paleozoic–Mesozoic basement rocks …
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Reconnaissance work carried out in north-east Southern Rhodesia has shown that the Umkondo System, previously known in the Mozambique Belt, extends into the Zambesi Belt. It is further demonstrated that the two belts were broadly continuous in structure and metamorphism during the important orogeny c. 500 m·y. The possibility that the mobile ...
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Here we present data from the Anziling gneiss dome, a typical gneiss dome structure from the eastern North China Craton, which was formed dominantly by vertical tectonism during Neoarchean times (2554–2452 Ma).
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Neoarchean orogenic belt evolution in the northeast North China Craton: Implications for the reconstruction of early Earth's microplates. Author links open overlay panel Guozheng Sun a b, Shuwen Liu c, Sanzhong Li a b, ... In this ∼ 2.70 Ga tectonic belt, the TTG gneisses are mainly distributed in its central to western section, and ...
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The NE-trending Jiangnan orogenic belt has experienced multi-tectonic episodes since the Mesozoic separates the Yangtze Block in the north-west from the Cathaysia Block in …
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1. Introduction [2] The Qinling orogen separates the north China block from the south China block and links the Kunlun and Qilian orogens to the west, with the Dabie-Sulu orogen to the east (Figures 1a and 1b).These terranes make up an important tectonic zone in eastern Asia [Zhang et al., 1995, 1996, 2004; Meng and Zhang, 2000; Ratschbacher et al., 2003].
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Significance of neotectonics in assessing the relative tectonic activity in and around the Mat Fault of Eastern Himalayan Fold Belt, Mizoram, north‐east India February 2022 Geological Journal 57(6)
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Therefore, tectonic uplift and mountain building of the arcuate tectonic belt expanded north‐eastward during the Eogene to Neogene. This research shed new insights on the north‐eastward...
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The study of the spatial distribution of strain and stress accumulation in a continent-continent convergent system is significant for seismic hazard assessment. The Indian Plate is moving towards the north-east at a pace of 5cm/year, according to GPS velocity vectors. Since the Main Central Thrust (MCT) was active from 23 Ma to 12 Ma, when the Eurasian and …
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Generalized map of the North American Cordilleran system shows current distribution of major tectonic elements, including Jurassic–Eocene accretionary complexes, …
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Geology and Tectonics of the Indian Sub-continent constitute a significant component of the Indian Plate straddling the equator as a part of the Gondwanaland that broke into fragments at ~100 Ma ...
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Towards the north side, it is bounded by Dauki fault and in the east side, it is bounded by Haflong-Disang thrust, and on the south side, it is bounded by Arakan-Yoma fold belt, while as on the ...
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To constrain the incipient Pacific-type orogeny and tectonic processes in the Early Paleozoic proto-East Asian continental margin, the Motai–Matsugadaira–Yamagami (MMY) metamorphic rocks in the South Kitakami belt, northeast Japan were investigated.
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Moreover, a series of north-northeast (NNE)-trending basin–mountain deformations and Meso–Cenozoic magmatism became more intense from west to east in the NCC (Fig. 1 c; ... From the Late Triassic to the Early Jurassic, the tectonic belt on the north side of the QDOB was thrust from south to north, forcing the Proterozoic metamorphic rocks ...
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The Liaoji orogenic belt is one of the three Paleoproterozoic mobile belts on the NCC, located in the eastern part of the Eastern Block (Fig. 7.1; Luo et al. 2008; Zhao et al. 2005).The belt consists of greenschist to lower amphibolite facies metasedimentary, metavolcanic successions, meta-granitic and mafic intrusions with metamorphic age of ca. 1.9 Ga (Yin and …
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The northwest trending tectonic belt in the middle part of the Mesozoic intraplate Yanshan Orogenic Belt, northeast Hebei Province, is composed of thrusts, extensional faults, strike-slip faults and syntectonic sedimentations as well. The northeastward basement-involved major thrusting deformation occurred between 174Ma and 168MaBP and was followed by an …
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Belts of various Paleoproterozoic rock types and shear zones trend dominantly northeast to east-northeast, as does the strike of steeply dipping tectonic foliation in most metamorphic rock units. This tectonic grain reflects the trend of the Laurentian continental margin and the shortening strains resulting from plate-tectonic convergence and ...
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A. TAKEUCHI: BASEMENT-INVOLVED TECTONICS IN NORTH FOSSA MAGNA, CENTRAL JAPAN 1263 Fig. 3. Tectonic provinces of the North Fossa Magna. Distribution of Miocene stratigraphic sequence (after 1:200,000 Geologic Map; GSJ, 2003) and major tectonic zones and belts (after Kosaka, 1999) are compiled and simply reproduced. [Pre-Tertiary Basement] HM: …
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The Okhotsk-Chukotka Volcanic Belt is the next youngest magmatic belt of NE Russia. It has received the most attention and research and represents one of the world's largest volume ignimbrite "flare-ups" in a continental arc setting.
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Some researchers suggested that the seismotectonics of northeast India is attributed to south directed overthrusting from the north due to collision tectonics at the Himalayan Arc, and northwest directed overthrusting due to subduction tectonics at the Burmese Arc (Verma et al., 1976; Mukhopadhyay and Dasgupta, 1988; Kayal, 2008).
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The Taihang Tectonic Belt (TTB) and the Qinling Orogen (QO) today are in a T-shaped arrangement within the Eurasian Plate, of which the Taihang Mountains is a north-northeast-trending tectonic belt between the Yanshan Orogen to the north and the Qinling Orogen to the south, which is composed of a series of alternating arrangement of uplifts and ...
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The tectonic framework of northeast India is complex and is seismically one of the active regions of the world. The study region lies between two young orogenic belts – Himalayan arc orogen to the north and N–S trending crescent-shaped Indo-Burmese Ranges to the east (figure 1).It is believed that the Indian plate is under thrusting at low angles beneath the …
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The Altaid Tectonic Collage (Sengör et al., 1993, Yakubchuk, 2004), also referred to as the Central Asian Orogenic Belt (CAOB) (Jahn et al., 2000, Xiao et al., 2003, Xiao et al., 2004a, Xiao et al., 2004b, Yakubchuk, 2004), constitutes a vast accretionary orogen situated between the Siberian Craton to the north and the North China Craton and Tarim Craton to the …
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The Cachar fold belt (CFB) is a part of the Assam-Arakan frontal fold belt in northeast India (Fig. 1) that developed as an accretionary wedge formed on the subducted Indian crust of the eastern ...
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Based on the distribution of epicentres and geotectonic properties, six seismic tectonic zones were identified in North-East India (Kayal, 1998). This area, which is known as the seismically most ...
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The Early to Middle Jurassic interval represents a critical phase in the tectonic evolution of the Northeast Asian continent. The closure of the Mongol-Okhotsk Ocean during this period led to the amalgamation of multiple tectonic units and the development of extensive magmatic belts (Donskaya et al., 2012; Sun et al., 2013).Concurrently, the subduction of the …
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