نتایج جستجو برای: neotethys

تعداد نتایج: 121  

Journal: :journal of tethys 0

pillow basalts, belonging to late cretaceous yüksekova complex are extensivelly exposed around elazıg in eastern turkey. this unit is a part of southeastern anatolian ophiolite belt and the southern branch of the neotethys. it represents the products of intra- oceanic subduction volcanism and mainly comprises pillow lavas, dykes and associated with sedimentary rocks. pillow lavas and feeder dyk...

Journal: :journal of sciences, islamic republic of iran 2010
m. jamshidi badr

soursat metamorphic complex (smc) in west of takab city is one of the polyphase metamorphic terrenes in northern sanandaj-sirjan metamorphic belt of iran. the smc composed mainly of metasedimentary rocks associated with granitic intrusions. based on metamorphic rocks, two metamorphic phases could be separate in the complex. m1 is representative of regional metamorphisms which varies from greens...

Journal: :Global and Planetary Change 2021

The Dachstein platform was an extensive carbonate developed on the westernmost shelf of Neotethys during Late Triassic, now preserved in various tectonic units disrupted Alpine orogeny. Despite being focus a multitude sedimentological, paleontological and other studies, demise this remains controversial, with contrasting views timing causes cessation its growth, duration gap above, which at man...

Journal: :Global and Planetary Change 2022

Bottom current deposits (contourites) form in association with modern-day or ancient oceanic gateways. A paucity of examples the record and lack consensus on diagnostic criteria for differentiating them from other deepwater limit our understanding how they may past global circulation, tectonic events gateway evolution. This work describes an exceptional example Eocene to middle Miocene deep-mar...

Journal: :Folia biologica et geologica 2022


 The Julian Alps belong to the eastern Southern where South-Alpine and Dinaric structures now overlap. In Mesozoic times, this area was part of northeastern Adriatic continental margin, which facing Neotethys Ocean but also close Alpine Tethys. distribution basins swells on margin determined variations in stratigraphic record controlled structural evolution later thrust belt. most general...

Journal: :زمین شناسی اقتصادی 0
علیرضا الماسی محمد حسن کریم پور خسرو ابراهیمی نصرآبادی بهنام رحیمی اورس کلوتزلی ژوزه فرانسیسکو سانتوس

introduction the study area is located in central part of the khaf- kashmar-bardeskan belt which is volcano-plutonic belt at the north of the dorouneh fault in the north of lut block. the north of the lut block is affected by tectonic rotation and subduction processes which occur in the east of iran (tirrul et al., 1983). the magmatism of lut block begins in jurassic and continues in tertiary (...

Journal: :Folia biologica et geologica 2022

The Dinarides, together with the Albanides and Hellenides, preserve stratigraphic successions derived from eastern margin of Adriatic microplate remnants ophiolites obducted Maliac-Vardar branch Neotethys Ocean. main stages in Mesozoic geodynamic history are: 1) rifting leading to opening Maliac Ocean Late Anisian, 2) onset an east-dipping intra-oceanic subduction Early-Middle Jurassic sea-floo...

Journal: :فیزیک زمین و فضا 0
نرگس افسری استادیار، گروه مهندسی عمران، دانشگاه آزاد اسلامی، واحد نوشهر، ایران فتانه تقی زاده فرهمند استادیار، گروه فیزیک، دانشگاه آزاد اسلامی، واحد قم، ایران محمدرضا قیطانچی استاد، گروه فیزیک زمین، موسسه ژئوفیزیک دانشگاه تهران، ایران اعظم سلیمانی کارشناس ارشد زلزله شناسی، دانشگاه آزاد اسلامی، واحد علوم و تحقیقات تهران، ایران

study crust and upper mantle structure below the surface of earth is one of the important objectives of geophysics. teleseismic body waveforms have been used to infer crust and upper mantel structure. the iranian plateau is part of the alpine-himalayan orogenic belt. the zagros mountain belt in southwestern iran has resulted from the collision of arabian plate with the continental crust of cent...

Journal: :زمین شناسی اقتصادی 0
محمد معانی جو عباس نصیری فرهاد آلیانی محمد مستقیمی میثم قلی پور عباس مقصودی

introduction the shahrestanak mn deposit is located in southern qom province, 12 km southwest of the city of kahak. based on geological-structural divisions of iran, the deposit belongs to central volcanic belt or urumieh-dokhtar zone. the venarch deposit is one the most important known manganese deposits in iran. the sharestanak and venarch deposits are spatially and temporally related to each...

Ali Jahangiri, Reza Alipour,

Introduction The vertical and horizontal movements of the Earth crust have caused extensive changes in surface phenomena, in the active tectonic regions. In order to measure some of these changes, morphometry analyses have been used to evaluation of the amount of tectonic activity. These analyses are useful tools for analyzing existing feature at the ground level and provide a proper understan...

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