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Academic literature on the topic 'Permian tectonic'

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Published: 9 March 2023
Last updated: 10 March 2023

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Journal articles on the topic "Permian tectonic"

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Song, Dongfang, Wenjiao Xiao, Brian F. Windley, and Chunming Han. "Provenance and tectonic setting of late Paleozoic sedimentary rocks from the Alxa Tectonic Belt (NW China): Implications for accretionary tectonics of the southern Central Asian Orogenic Belt." GSA Bulletin 133, no. 1-2 (June 9, 2020): 253–76. http://dx.doi.org/10.1130/b35652.1.

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Abstract The Central Asian Orogenic Belt has long been considered the largest Phanerozoic accretionary orogen in the world; it developed through the subduction and final closure of the Paleo–Asian Ocean. However, the architecture and duration of the accretionary orogenesis of the Central Asian Orogenic Belt are still controversial despite decades of investigation. In this study, we present field, compositional, and stratigraphically controlled detrital zircon geochronological data for late Paleozoic sedimentary rocks from the Alxa Tectonic Belt to constrain their provenance, tectonic setting, and the overall tectonic configuration of the southern Central Asian Orogenic Belt. A Devonian sample yields a unimodal age peak (ca. 424 Ma) and broad late Mesoproterozoic ages. A Carboniferous sample has Early Silurian (ca. 438 Ma) and Late Devonian (ca. 382 Ma) peaks along with Neoproterozoic to Archean ages. The Permian samples are dominated by Ordovician–Devonian and Carboniferous–Permian ages. They yield maximum depositional ages ranging from ca. 291 Ma to 248 Ma and contain abundant zircon ages that are close to their depositional ages. These data reveal Ordovician–Silurian and Carboniferous–Permian magmatic flare-ups separated by a Devonian magmatic lull in the southern Central Asian Orogenic Belt. The arc terranes in southern Mongolia, central Beishan, and northern Alxa provided major detritus for the late Paleozoic sediments. An abrupt shift of zircon εHf(t) values at ca. 400 Ma reveals significant late Paleozoic crustal growth and excludes southern Alxa as a source. Oceanic basins prevented detritus from southern Alxa from reaching northern Alxa during Permian–Early Triassic time. A geological and provenance comparison of Permian basins in the southern Central Asian Orogenic Belt reveals the existence of two separate forearcs ascribed to bipolar subduction of the Paleo–Asian Ocean. Combined with recent paleomagnetic data, this leads us to advocate for an archipelago-style accretionary process induced by subduction retreat for the late Paleozoic tectonic evolution of the southern Central Asian Orogenic Belt, which continued into Late Permian–Early Triassic.
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Li, Yalong, Wei Yue, Xun Yu, Xiangtong Huang, Zongquan Yao, Jiaze Song, Xin Shan, Xinghe Yu, and Shouye Yang. "Tectonic Evolution of the West Bogeda: Evidences from Zircon U-Pb Geochronology and Geochemistry Proxies, NW China." Minerals 10, no. 4 (April 10, 2020): 341. http://dx.doi.org/10.3390/min10040341.

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The Bogeda Shan (Mountain) is in southern part of the Central Asian Orogenic Belt (CAOB) and well preserved Paleozoic stratigraphy, making it an ideal region to study the tectonic evolution of the CAOB. However, there is a long-standing debate on the tectonic setting and onset uplift of the Bogeda Shan. In this study, we report detrital zircon U-Pb geochronology and whole-rock geochemistry of the Permian sandstone samples, to decipher the provenance and tectonic evolution of the West Bogeda Shan. The Lower-Middle Permian sandstone is characterized by a dominant zircon peak age at 300–400 Ma, similar to the Carboniferous samples, suggesting their provenance inheritance and from North Tian Shan (NTS) and Yili-Central Tian Shan (YCTS). While the zircon record of the Upper Permian sandstone is characterized by two major age peaks at ca. 335 Ma and ca. 455 Ma, indicating the change of provenance after the Middle Permian and indicating the uplift of Bogeda Shan. The initial uplift of Bogeda Shan was also demonstrated by structural deformations and unconformity occurring at the end of Middle Permian. The bulk elemental geochemistry of sedimentary rocks in the West Bogeda Shan suggests the Lower-Middle Permian is mostly greywacke with mafic source dominance, and tectonic setting changed from the continental rift in the Early Permian to post rift in the Middle Permian. The Upper Permian mainly consists of litharenite and sublitharenite with mafic-intermediate provenances formed in continental island arcs. The combined evidences suggest the initial uplift of the Bogeda Shan occurred in the Late Permian, and three stages of mountain building include the continental rift, post-rift extensional depression, and continental arc from the Early, Middle, to Late Permian, respectively.
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Chen, Xingyu, Zhijie Zhang, Xuanjun Yuan, Li Wan, Chuanmin Zhou, Yinhe Liu, and Dawei Cheng. "The Evolution of Permian Source-to-Sink Systems and Tectonics Implications in the NW Junggar Basin, China: Evidence from Detrital Zircon Geochronology." Minerals 12, no. 9 (September 15, 2022): 1169. http://dx.doi.org/10.3390/min12091169.

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The basin type of the Junggar Basin changed during the Permian, but the time constraint of the tectonic evolution remains unclear. Besides, the fan deltas developed in the Permian in the Mahu Sag in the northwestern of the oil-rich basin. However, the provenances of the sedimentary systems remain unclear. Based on petrology and detrital zircon U-Pb ages, this study investigates the source-to-sink systems evolution and tectonics implications. Abundant lithic clasts in sandstones with low compositional and textural maturity imply proximal sources. The dating results showed a dominant peak (310–330 Ma) and a secondary peak (400–440 Ma) in the northern Mahu Sag, only one peak at 295–325 Ma in the central Mahu Sag, several peaks at 270–350 Ma in the southern Mahu Sag, and multiple peaks at 370–450 Ma in the Zhongguai Uplift. Thus, the north-western Junggar Basin was divided into four major source-to-sink systems, with adjacent central West Junggar as the main provenance and northern and southern West Junggar as the secondary provenance. The proportion of sediment supply from the southern and northern West Junggar is higher during the Middle-Late Permian. It suggests that the source-to-sink systems show inheritance and evolve from a single provenance into a complex provenance, indicating the uplift of West Junggar. The tectonic inversion may occur early in the Middle Permian and the response to tectonic activity is stronger in the southern West Junggar than in the northern West Junggar.
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Wopfner, H., and C. Z. Kaaya. "Stratigraphy and morphotectonics of Karoo deposits of the northern Selous Basin, Tanzania." Geological Magazine 128, no. 4 (July 1991): 319–34. http://dx.doi.org/10.1017/s0016756800017593.

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AbstractLate Permian Karoo deposits of the northern Selous Basin in south-central Tanzania comprise conglomerates and diamictitic boulder beds of alluvial and scarp-foot fan origin. These merge with grey to greenish sandstones, siltstones and black shales of deltaic and lacustrine environments. Microflora assemblages indicate a late Permian age. Lateral changes and interfingering of various lithofacies units are common. Depositional development was controlled by syndepositional faulting and variations of gradients resulting from fault movements. The position of the fault scarp separating the basin area from the elevated basement horst to the west roughly corresponded with the present boundary between the Selous Basin and the Precambrian metamorphics of the Uluguru Mountains.The late Permian Karoo succession of this part of the Selous Basin apparently overlaps older Karoo deposits contained in the north-northeast trending narrow graben structures. It is therefore regarded as a new depositional event which was initiated by renewed tensional tectonism in late Permian time. During this tectonic episode the narrow early Karoo graben structures were expanded into much broader rift basins. Material eroded from the rift shoulders and associated highlands was literally dumped across the fault scarps, forming debris aprons and scarp-foot fans. Rivers emanating from the highlands formed large alluvial fans and, further afield, deltas issued into freshwater lakes.Some of these late Permian faults were rejuvenated by late Cretaceous to early Tertiary tectonism. Thermal waters circulating along fractures converted feldspars, biotites and hornblendes to prehnite. Further tectonic adjustments in mid Tertiary time led to the present-day morphology.
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Guanglong, Shen, Wang Yong-dong, Jun Wang, Liu Huaqing, and Zhang Shuangquan. "Tectonic implications of Permian floras in China." Journal of Palaeosciences 45 (December 31, 1996): 324–28. http://dx.doi.org/10.54991/jop.1996.1251.

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On the basis of comprehensive palaeophytogeographical study, the Permian flora of China may be divided into 4 phytorealms, 5 phytoareas and 13 phytoprovinces. The tectonic implications of the Permian floras and phytoprovinces in China are preliminarily discussed.
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Han, Zuozhen, Jingjing Li, Zhigang Song, Guyao Liu, Wenjian Zhong, Lihua Gao, and Qingxiang Du. "Geochemistry and Zircon U-Pb-Hf Isotopes of Metamorphic Rocks from the Kaiyuan and Hulan Tectonic Mélanges, NE China: Implications for the Tectonic Evolution of the Paleo-Asian and Mudanjiang Oceans." Minerals 10, no. 9 (September 22, 2020): 836. http://dx.doi.org/10.3390/min10090836.

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The Late Paleozoic–Early Mesozoic tectonic evolution of the Changchun-Yanji suture (CYS) was mainly associated with the Paleo-Asian and Mudanjiang tectonic regimes. However, the spatial and temporal overprinting and variations of these two regimes remains are still dispute. In order to evaluate this issue, in this contribution, we present new zircon U-Pb ages and a whole-rock geochemical and zircon Hf isotopic dataset on a suite of metamorphic rocks, including gneisses, actinolite schist, leptynites, and biotite schists, from tectonic mélanges in northern Liaoning and central Jilin provinces, NE China. Based on zircon LA-ICP-MS U-Pb dating results, protoliths show wide ranges of aging spectrum, including Paleoproterozoic (2441 Ma), Early Permian (281 Ma), Late Permian (254 Ma), and Late Triassic (230 Ma). The Permian protoliths of leptynites from the Hulan Tectonic Mélange (HLTM) and gneisses from the Kaiyuan Tectonic Mélange (KYTM) exhibit arc-related geochemical signatures, implying that the Paleo-Asian Ocean (PAO) did not close prior to the Late Permian. The Late Triassic protoliths of gneisses from the KYTM, in combination with previously reported coeval igneous rocks along the CYS, comprises a typical bimodal igneous suite in an E–W-trending belt, suggesting a post-orogenic extensional environment. Consequently, we infer that the final closure of the PAO took place during the Early–Middle Triassic. The Early Permian protoliths of biotite schists from the HLTM are alkali basaltic rocks and contain multiple older inherited zircons, which, in conjunction with the geochemical features of the rocks, indicate that they were generated in a continental rift related to the initial opening of the Mudanjiang Ocean (MO). Data from this contribution and previous studies lead us to conclude that the MO probably opened during the Middle Triassic, due to the north–south trending compression caused by the final closure of the PAO.
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Maystrenko, Y., U. Bayer, and M. Scheck-Wenderoth. "3D reconstruction of salt movements within the deepest post-Permian structure of the Central European Basin System - the Glueckstadt Graben." Netherlands Journal of Geosciences - Geologie en Mijnbouw 85, no. 3 (September 2006): 181–96. http://dx.doi.org/10.1017/s0016774600021466.

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AbstractThe Glueckstadt Graben is a prominent structure of the Central European Basin System, where the sedimentary patterns are extensively affected by Permian salt movements. The relations of the sedimentary patterns to salt structures have been analyzed through present-day distributions of sediments. In addition, a three-dimensional backward modelling approach has been applied to determine the original salt distribution in response to the unloading due to sequential backstripping of the stratigraphic layers. The results of the modelling reveal the thickness distribution of the Permian salt for 5 time intervals from the end of the Triassic to present day. Spatial agreement has been found between the development of the depleted zone of the Permian salt through time and the observed distribution of the maximum subsidence for the different stratigraphic units above the salt. The sedimentation centres for each time interval are always located above the zone of reduced or depleted Permian salt. In the central part of the Glueckstadt Graben, the depletion occurred already in the Triassic and perfectly correlates with the thickest Triassic. During the Jurassic, Cretaceous and Tertiary, the areas of depleted Permian salt shifted towards the basin flanks, and the same occurred with the centres of maximum sediment deposition. Thus, the results of the modelling strongly support the conclusion that salt withdrawal has played a major role during the Meso-Cenozoic evolution of the Glueckstadt Graben and that the progressive depletion of the Permian salt layer, from the central part towards the margins, created the large part of the accommodation space for sedimentation in addition to tectonic subsidence.Furthermore, our study has several important implications for salt behaviour in different tectonic settings. In general, the results of modelling indicate a good correlation between the main phases of salt movements and tectonic events in the area under consideration. During the Triassic, the first stage of diapirism in the Glueckstadt Graben occurred within the central part of the basin. Regional extension may have triggered reactive diapirism and caused the formation of the deep primary rim synclines. Once the salt structures had reached the critical size, buoyancy forces supported their continued growth until the Jurassic when extension-induced regional stresses once more affected the Glueckstadt Graben. The results of the modelling indicate very little salt activity during the late Early Cretaceous-early Late Cretaceous when the area of the Glueckstadt Graben was tectonically silent. Therefore, our study supports the concept of tectonically induced salt movements which can be interrupted during the absence of tectonic forces. Salt movements were reactivated in the marginal troughs by compressional forces during the latest Late Cretaceous-Early Cenozoic. Paleogene-Neogene salt withdrawal led to the growth of N-S oriented salt structures mainly at the margins of the basin. This phase of salt tectonics correlates temporally with almost W-E extension. This indicates a renewed change in tectonic regime after Late Cretaceous-Early Cenozoic compression.
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Filippi, Marco, Maria Iole Spalla, Nicola Pigazzini, Valeria Diella, Jean-Marc Lardeaux, and Davide Zanoni. "Cld-St-And-Bearing Assemblages in the Central Southalpine Basement: Markers of an Evolving Thermal Regime during Variscan Convergence." Minerals 11, no. 10 (October 13, 2021): 1124. http://dx.doi.org/10.3390/min11101124.

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Multiscale structural analysis is carried out to explore the sequence of superposed pre-Alpine chloritoid–staurolite–andalusite metamorphic assemblages in the polydeformed Variscan basement of the upper Val Camonica, in the central Southalpine domain. The dominant fabric in the upper Val Camonica basement is the late-Variscan S2 foliation, marked by greenschist facies minerals and truncated by the base of Permian siliciclastic sequences. The intersection with the sedimentary strata defines a Permian age limit on the pre-Alpine tectono–metamorphic evolution and exhumation of the Variscan basement. The detailed structural survey revealed that the older S1 foliation was locally preserved in low-strained domains. S1 is a composite fabric resulting from combining S1a and S1b: in the metapelites, S1a was supported by chloritoid, garnet, and biotite and developed before S1b, which was marked by staurolite, garnet, and biotite. S1a and S1b developed at intermediate pressure amphibolite facies conditions during the Variscan convergence, S1a at T = 520–550 °C and P ≃ 0.8 GPa, S1b at T = 550–650 °C and P = 0.4–0.7 GPa. The special feature of the upper Val Camonica metapelites is andalusite, which formed between the late D1b and early D2 tectonic events. Andalusite developed at T = 520–580 °C and P = 0.2–0.4 GPa in pre-Permian times, after the peak of the Variscan collision and before the exhumation of the Variscan basement and the subsequent deposition of the Permian covers. It follows that the upper Val Camonica andalusite has a different age and tectonic significance as compared to that of other pre-Alpine andalusite occurrences in the Alps, where andalusite mostly developed during exhumation of high-temperature basement rocks in Permian–Triassic times.
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Costamagna, Luca Giacomo. "The carbonates of the post-Variscan basins of Sardinia: the evolution from Carboniferous–Permian humid-persistent to Permian arid-ephemeral lakes in a morphotectonic framework." Geological Magazine 156, no. 11 (May 31, 2019): 1892–914. http://dx.doi.org/10.1017/s0016756819000232.

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AbstractLate to post-Variscan sedimentary basins of Sardinia were influenced during Pennsylvanian to Permian times by two main tectono-sedimentary cycles: a Pennsylvanian to Cisuralian cycle represented mainly by dark limnic deposits, overlain by a Guadalupian to a possibly Lopingian cycle, mostly characterized by red-bed deposits. Lacustrine waterbodies developed in some sedimentary basins that were filled with siliciclastic to frequently early silicified carbonate deposits, depending on the climate and environmental conditions, landscape morphology and tectonic regime. The limnic successions of the lower tectono-sedimentary cycle were deposited in permanent, tens of metres deep lakes in deep, narrow tectonic strike-slip basins under a temperate to warm-humid climate. They started as lakes with terrigenous sedimentary input and developed minor carbonate deposits mainly at the end of their story. Conversely, the red-bed successions of the upper cycle were deposited in ephemeral, shallow playa lakes related to wider basins in an extensive alluvial plain under a hot and arid climate. Here, the siliciclastic sediments are intercalated with thin carbonate beds that are typical of a high evaporation rate. The evolution of the lake type could be related not only to a major climatic shift, but also to the changing morphotectonic conditions of the Variscan chain influencing the local microclimate. Comparisons with coeval successions in the Provence Basin, the Massif Central Aumance basin (France) and the Saar–Nahe Basin (Germany) show both similarities and differences between the basins.
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Metcalfe, I. "Permian tectonic framework and palaeogeography of SE Asia." Journal of Asian Earth Sciences 20, no. 6 (August 2002): 551–66. http://dx.doi.org/10.1016/s1367-9120(02)00022-6.

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Dissertations / Theses on the topic "Permian tectonic"

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Ford, Andrew J. H. "Tectonic influence on permian sedimentation, central portion, Pepita-Wackett-Nockatunga Trend, Cooper Basin, Southwest Queensland /." Title page, contents and abstract only, 1986. http://web4.library.adelaide.edu.au/theses/09S.B/09s.bf699.pdf.

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Becker, Thomas Patrick. "PALEOGEOGRAPHIC AND TECTONIC IMPLICATIONS OF THE LATE PALEOZOIC ALLEGHANIAN OROGEN DEVELOPED FROM ISOTOPIC SEDIMENTARY PROVENANCE PROXIES FROM THE APPALACHIAN FORELAND BASIN." UKnowledge, 2005. http://uknowledge.uky.edu/gradschool_diss/367.

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The Alleghanian orogeny was a collision between the Gondwanan and Laurentian continents that produced the Pangean supercontinent. Mechanical and kinematic models of collisional orogens are believed to follow a critical taper geometry, where the tectonic imbrication of continental crust begins nearest to the edge of continental plate and advances toward the craton in a break- forward sequence. Studies of shear zones within the Alleghanian collisional orogen, however, suggest that most of the early deformation was translational. Propagation of craton-directed thrusts into the foreland did not occur until the latest Pennsylvanian in the southern Appalachians, and the middle-late Permian in the central Appalachians. Radiometric sedimentary provenance proxies have been applied to the late Mississippian-early Permian strata within the Appalachian foreland basin to determine the crustal composition and structural evolution of the orogen during the continental collision. U-Pb ages of detrital zircons from the early to middle Pennsylvanian sandstones suggest that most of the detritus within the Appalachian basin was recycled from Mesoproterozoic basement and Paleozoic strata of the Laurentian margin. The presence of Archean and late Paleoproterozoic age detrital zircons is cited as evidence of recycling of the Laurentian syn-rift and passive-margin sandstones. Detrital zircon ages from early-middle Permian-age sandstones of the Dunkard Group do not contain any Archean or Paleoproterozoic detrital-zircon ages, implying a source of sediment with a much more restricted age population, possibly the igneous and metamorphic internides or middle Paleozoic sandstones from the Appalachian basin. The persistance of 360-400 Ma K/Ar ages of detrital white mica suggest that the sediment was supplied from a source that was exhumed during the Devonian Acadian orogeny. Detrital-zircon and detrital-white-mica ages from Pennsylvanian-age sandstones indicate that the late Paleozoic orogen did not incorporate any significant synorogenic juvenile crust. The 87Sr/86Sr ratios of middle Pennsylvanian-early Permian lacustrine limestones within the Appalachian basin show a slight enrichment through time, suggesting that labile 87Sr-rich minerals in the Alleghanian hinterland are being exposed. Stable isotopic data from the lacustrine limestones also corroborates that the Appalachian basin became much more arid through time.
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TSUKADA, Kazuhiro, and Yasushi TAKAHASHI. "Redefinition of the Permian strata in the Hida-gaien Tectonic Zone, Fukuji area, Gifu Prefecture, Central Japan." Dept. of Earth and Planetary Sciences, Nagoya University, 2000. http://hdl.handle.net/2237/2848.

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Armin, Richard Alan. "RED CHERT-CLAST CONGLOMERATE IN THE EARP FORMATION (PENNSYLVANIAN-PERMIAN), SOUTHEASTERN ARIZONA: STRATIGRAPHY, SEDIMENTOLOGY, AND TECTONIC SIGNIFICANCE." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/187538.

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A single interval of red chert-clast conglomerate and associated strata (RCC/CRCC interval) occur within the Earp Formation (pennsylvanian-Permian) at many localities in southeastern Arizona, southwestern New Mexico, and northern Mexico, and record a middle Wolfcampian erosional event in the Pedregosa shelf and northern basin. The RCC and CRCC intervals are respective proximal and distal braidplain deposits, in contrast to the Earp Formation exclusive of the RCC/CRCC interval, which consists of interbedded carbonate and fine-grained siliciclastic strata that were deposited in mostly shallow- and marginalmarine environments. Deposition of stream channel, gravel bar, and interfluvial shale beds of the RCC/CRCC interval occurred on a broad, low-lying surface with negligible local topography. Paleocurrents were generally southward. Biostratigraphic evidence suggests that lower Wolfcampian strata below the RCC/CRCC interval were beveled northward. Much of the chert present- in the RCC/CRCC interval is probably residual material from the beveled strata, as well as from a region just north of the Pedregosa shelf. The evolution of the Pedregosa shelf and northern basin during depoSition of the Earp Formation is illuminated by identification of facies belts for three time intervals: (1) restricted shelf, inner shelf, and open-marine shelf facies belts during Virgilian through early Wolfcampian ttme, (2) proximal and distal braidplain facies belts during middle Wolfcampian time, and (3) restricted shelf, estuarine-marginal marine, and tidal-flat facies belts during middle through late(?) Wolfcampian time . The middle Wolfcampian erosional event caxnpanying the deposition of the RCC/CRCC interval was probably related to the Ouachita orogeny. Stratigraphic evidence suggests that the southern Pedregosa basin in Chihuahua, Mexico, evolved rapidly to a deep foreland basin during early or middle Wolfcarrpian tine because of downflexure under northward overthrusts during the Ouachita orogeny. Flexural subsidence of the Pedregosa foreland basin was accanpanied by peripheral forebulging, causing subaerial exposure of large parts of the Pedregosa shelf and northern basin. Deposition of the FCC/CFfX interval probably occurred on the subaerially exposed forebulge. Flexural mxlels predicting the deflection of the lithosphere under isostatic thrust and secliIrent loads agree satisfactorily with the forebulge concept for the origin of the RCC/CRCC interval.
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Meibos, Joshua Kerst. "Sequence Biostratigraphy of Carboniferous-Permian Boundary Strata in Western Utah: Deciphering Eustatic and Tectonic Controls on Sedimentation in the Antler-Sonoma Distal Foreland Basin." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/7583.

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The stratal architecture of the upper Ely Limestone and Mormon Gap Formation (Pennsylvanian-early Permian) in western Utah reflects the interaction of icehouse sea-level change and tectonic activity in the distal Antler-Sonoma foreland basin. Eighteen physically and biostratigraphically corelated stratigraphic sections provide a database for tracing Permo-Carboniferous boundary strata over a north-south distance of 60 km. These formations comprise 14 unconformity-bounded depositional sequence: three in the upper Ely (UE1-UE3) and 11 in the Mormon Gap Formation (MG1-MG11). Conodont and fusulinid faunas provide precise biostratigraphic information for a number of parasequences in the upper Ely and Mormon Gap formations. This paleontological information clarifies the tectonostratigraphic evolution of the distal foreland basin (study area) and permits correlation with events in the proximal foreland (Nevada) and with depositional sequences in the North American midcontinent. The stratigraphic succession is divided into three depositional intervals (I-III) with distinctive differences in constituent facies and facies stacking patterns, the regional continuity of cycles, the relative abundance of dolomite and limestone, calculated sediment accumulation rates, and the frequency and inferred duration of sequence-bounding hiatuses. These reflect the interaction of high-frequency sea-level change on an intermittently subsiding distal foreland basin. Subsidence is generally continuous during the Bashkirian through middle Moscovian (Interval I) and again during the Artinskian (Interval II). During the late Moscovian through Sakmarian stages (Interval III), subsidence rates dropped and sedimentation occurred mainly in consequence of second-order sea-level rise associated with the highstand of the Lower Absaroka II seas. Strata in the distal foreland are bounded by low-relief disconformities of variable duration in stark contrast to the angular unconformities and intensely deformed tectonostratigraphic domains that characterize the proximal foreland basin in north-central Nevada.
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LOCCHI, SOFIA. "The Post-Variscan evolution of the central Southern Alps: insights from synchronous fault activity, hydrothermalism and magmatism in the Orobic and Collio Basins." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/404097.

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Durante il Permiano Inferiore, l’evoluzione post-Varisica dell’attuale regione Alpina è stata caratterizzata da una importante estensione crostale combinata con intensa attività magmatica, che ha favorito lo sviluppo di bacini estensionali intra-continentali con deposizione di sedimenti vulcanoclastici (e.g. Bacino Orobico). Nel settore centrale delle Alpi Meridionali, l’apertura di questi bacini era controllata da complessi sistemi di faglia, attivi contemporaneamente con l’intrusione di plutoni e l’attività vulcanica in superficie. Il seguente progetto di dottorato si focalizza sullo studio di queste caratteristiche, con l’intento di approfondire i processi geologici attivi durante il Permiano. Diverse faglie di età Permiana sono state indagate nel Bacino Orobico, con particolare enfasi sul riconoscimento dei loro tratti originali, poiché esse sono eccezionalmente sfuggite alla deformazione Alpina. Nel passato, l’architettura dei bacini Permiani era stata descritta con strutture a horst-graben, formatesi in risposta ad una tettonica transtensiva controllata da una zona di taglio che ha portato alla trasformazione da Pangea B a Pangea A. Tuttavia, studi più recenti hanno indicato un diverso setting di faglie che hanno controllato l’apertura dei bacini Permiani: si tratta di una combinazione di faglie normali a basso e alto angolo. Le faglie normali a basso angolo identificate lungo il Bacino Orobico rappresentano il miglior luogo in cui osservare l’interazione tra attività tettonica e magmatismo, poiché i loro nuclei di faglia sono caratterizzati da cataclasiti sigillate da livelli di tormaliniti. Queste ultime testimoniano la circolazione di fluidi arricchiti in boro e incanalati lungo importanti zone di faglia correlate all’apertura del Bacino Orobico. Simili brecce a tormalina affiorano anche in Val Trompia (BS): molti autori hanno suggerito che le tormaliniti delle Alpi Orobie, quelle della Val Trompia unitamente alla mineralizzazione di uranio del distretto di Novazza-Val Vedello potrebbero essere geneticamente correlate. Esse potrebbero essere correlate ad un sistema idrotermale di alta temperatura su ampia scala, coevo con l’attività tettono-magmatica del Permiano Inferiore che è responsabile anche della messa in posto di svariati depositi di minerali metalliferi nelle Alpi Meridionali. Tuttavia, la genesi delle tormaliniti non è mai stata dettagliatamente caratterizzata e la loro connessione con i giacimenti di U finora non è mai stata investigata. Le faglie tormalinizzate sono state riconosciute in molte località del settore centrale delle Alpi Meridionali quando ancora non era nota l’importanza delle faglie normali a basso angolo. In questa tesi di dottorato, vengono caratterizzate tutte le aree con i ritrovamenti di tormaliniti, ricercando la causa dell’idrotermalismo regionale nel contesto di estensione durante il Permiano Inferiore. Inoltre, per via del possibile link con i giacimenti di uranio, lo studio dei borosilicati viene proposto come strumento per meglio caratterizzare la genesi delle mineralizzazioni. Nuove osservazioni di terreno su tormaliniti sono combinate con lo studio della geochimica dei minerali e della roccia totale, insieme alla geocronologia, a studi microstrutturali e analisi isotopiche del B, con lo scopo finale di definire l’origine di questi fluidi arricchiti in boro. I risultati ottenuti da questa ricerca dimostrano che le tormaliniti e il magmatismo Permiano sono in stretta correlazione temporale e genetica. Inoltre, i dati geochimici sugli elementi in tracce forniscono maggiori indizi su una diretta connessione tra tormaliniti e la mineralizzazione a U dell’area di Novazza-Val Vedello. Tutti questi dati, per concludere, sono discussi nel contesto di interazione di processi tettonici, magmatici e di formazione di giacimenti che hanno interessato l’attuale settore centrale delle Alpi Meridionali durante il Permiano Inferiore.
During the Early Permian, the post-Variscan evolution of the present-day Alpine region was characterized by crustal extension combined with strong magmatic activity at different crustal levels, which finally led to the development of intracontinental extensional basins filled with volcanoclastic sediments (e. g. the Orobic Basin, N Italy). In the central Southern Alps (cSA), the opening of these basins was controlled by complex fault system that were active at the same time of plutons intrusion and volcanic activity at the surface. Relationships among magmatism, tectonics and hydrothermal activity related to the formation of ore deposits in the Early Permian so far have been only briefly addressed. This Ph.D. research project focuses on the investigations of the above described features, trying to consider the geological processes active in the Early Permian in an integrated scenario. Several Early Permian faults of the Orobic Basin have been investigated with special emphasis on the recognition of their original features, as they have exceptionally escaped most of the Alpine deformation. In the past, the architecture of Permian basins was described as horst-and-graben structures, formed in response to wrench tectonics developed during the activity of a megashear zone that led to the Pangea B to Pangea A transformation after the collapse of the Variscan orogen. However, thanks recent studies, a different fault architecture has been suggested to had controlled the opening of the Permian basins: a combination of Low-Angle Normal faults and High-Angle Normal Faults. The identified LANFs of the Orobic Basin represent the best site to study the interplay among tectonics and magmatism, as they are characterized by cataclastic bands sealed with cm to dm thick layers of dark, aphanitic tourmalinites. These latter are proof of fluids circulation channelled along higher permeability fault zones related to opening of the Orobic Basin. Such tourmaline breccias also crop out in the Trompia Valley (BS): several authors suggested that tourmalinites from Orobic Alps, tourmalinites from Trompia Valley together with uranium mineralization of Novazza - Vedello Valley are genetically linked. They are seen as products of a large-scale high-temperature hydrothermal system coeval with the Early Permian plutonic-volcanic activity and tectonism, which was also responsible for the emplacement of various types of magmatic-hydrothermal ore deposits in the Southern Alps (Sn-W, U-Mo-Zn, Fe carbonates, sulphides, quartz). However, their genesis has never been fully characterized and the connection between tourmalinites and U ore bodies has also not been deeply investigated so far. The tourmalinized faults were first noted in various sites of the cSA during the 90’s, when the tectonic importance of LANFs was not yet recognized. In this thesis, all the occurrences of tourmalinites are characterized, looking for the cause of the regional hydrothermalism in the context of intracontinental extension during the Early Permian. Furthermore, due to the likely connection with U ore deposits, the borosilicate study is proposed as tool for better understanding the genesis of the mineralizations. New field based structural analysis are combined with mineral and whole-rock geochemistry, geochronology, microstructural studies and boron- isotopic analysis of tourmalinites from different sectors of the study area, in order to evaluate the origin of these fluids. Results coming out from this study demonstrate, together with B isotope ratios, a temporal and genetical relationship between tourmalinites and Early Permian magmatism in the cSA. Furthermore, the geochemical data on trace elements provide more clues on a direct connection between tourmalinites and the U-mineralization. All these results are finally discussed in the frame of the interplay between tectonic, magmatic and ore generation processes that interested the present day cSA area in the Early Permian
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Worthington, James R., Paul Kapp, Vladislav Minaev, James B. Chapman, Frank K. Mazdab, Mihai N. Ducea, Ilhomjon Oimahmadov, and Mustafo Gadoev. "Birth, life, and demise of the Andean-syn-collisional Gissar arc: Late Paleozoic tectono-magmatic-metamorphic evolution of the southwestern Tian Shan, Tajikistan." AMER GEOPHYSICAL UNION, 2017. http://hdl.handle.net/10150/626289.

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The amalgamation of the Central Asian Orogenic Belt in the southwestern Tian Shan in Tajikistan is represented by tectono-magmatic-metamorphic processes that accompanied late Paleozoic ocean closure and collision between the Karakum-Tarim and Kazakh-Kyrgyz terranes. Integrated U-Pb geochronology, thermobarometry, pseudosection modeling, and Hf geochemistry constrain the timing and petro-tectonic nature of these processes. The Gissar batholith and the Garm massif represent an eastward, along-strike increase in paleodepth from upper-batholith (similar to 21-7km) to arc-root (similar to 36-19km) levels of the Andean-syn-collisional Gissar arc, which developed from similar to 323-288Ma in two stages: (i) Andean, I-type granitoid magmatism from similar to 323-306Ma due to northward subduction of the Gissar back-arc ocean basin under the Gissar microcontinent, which was immediately followed by (ii) syn-collisional, I-S-type granitoid magmatism in the Gissar batholith and the Garm massif from similar to 304-288Ma due to northward subduction/underthrusting of Karakum marginal-continental crust under the Gissar microcontinent. A rapid isotopic pull-up from similar to 288-286Ma signals the onset of juvenile, alkaline-syenitic, post-collisional magmatism by similar to 280Ma, which was driven by delamination of the Gissar arclogite root and consequent convective asthenospheric upwelling. Whereas M-HT/LP prograde metamorphism in the Garm massif (650-750 degrees C/6-7kbar) from similar to 310-288Ma was associated with subduction-magma inundation and crustal thickening, HT/LP heating and decompression to peak-metamorphic temperatures (similar to 800-820 degrees C/6-4kbar) at similar to 2886Ma was driven by the transmission of a post-collisional, mantle-derived heat wave through the Garm-massif crust.
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Venus, Joanne Helen. "Tectono-stratigraphic evolution of fluvial and aeolian systems in a salt mini-basin province during changing climatic conditions : Permian Undifferentiated Cutler Group, South East Utah, USA." Thesis, University of Leeds, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597094.

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The Permian Cutler Group in the northwest part of the Paradox foreland basin of south-eastern Utah and south-western Colorado comprises a succession of conglomerate and sandstone of mixed fluvial and aeolian affinity up to 4000 m thick: the proximal and medial parts of this basin-fill succession are the focus of this study. Fluctuations in climate and sediment flux resulted in growth and recession of penecontemporaneously operating fluvial and aeolian systems. Fluvial sediment was sourced from the Uncompahgre Uplift of the Ancestral Rocky Mountains. Progressive loading and movement of older salt deposits during accumulation of the Cutler Group generated a series of salt-wall-bounded mini-basins, collectively known as the “Salt Anticline Region~, in the eastern part of the study area. Here, the so-called Undifferentiated Cutler Group varies in thickness from zero over some salt highs to -4000 m just a few kilometres away in adjacent mini-basin depocentres. indicating that syn-sedimentary salt movement generated Significant variations in accommodation. In the Salt Anticline Region syn-sedimentary salt movement was the dominant control on the preserved stratigraphy and the distribution of architectural elements, which in turn was closely linked to the rate and style of influx, of sediment derived from the Uncompahgre Uplift. During tectonically quiescent episodes, fluvial systems filled accommodation in mini-basin depocentres before establishing flow pathways over buried salt-wall highs. In the Shafer Basin, in the western part of the study area, subtle salt structures form low-amplitude, long-wavelength anticlines upon which architectural elements thin and pinch out. Aeolian elements are rare in the Salt Anticline Region, but more common in medial parts of the Paradox Basin. Here, styles of aeolian-fluvial interaction occur at three scales: (i) large-scale intertonguing and interbedding of fluvial and aeolian elements; (il) small-scale feathering and reworking of elements and (iii) interactions at the grain-scale. These styles of interaction demonstrate penecontemporaneous aeolian and fluvial activity and large-scale alternations between episodes of aeolian and fluvia1 dominance. The large-scale cycles between aeolian and fluvial elements were likely controlled by a combination of extrinsic climatic forcing and episodic recurrence of Uncompahgre Uplift. resulting in tectonically driven pulses of enhanced rates of sediment delivery. System interactions at smaller scales record the effects of intrinsic (autogenic) controls. whereby localized dominance of fluvial over aeolian processes (and vice versa) occurred.
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Carasco, Bruno. "Les grabens stéphano-permiens de l'est de la France : Evolution tectono-sédimentaire, développement des facies lacustres carbonates et sapropéliques." Université Louis Pasteur (Strasbourg) (1971-2008), 1987. http://www.theses.fr/1987STR13079.

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Andreas, Dieter. "Der Thüringer Wald im Zeitraum der Stefan-Unterperm-Entwicklung - ein Abschnitt der Zentraleuropäischen N-S-Riftzone innerhalb des Mitteleuropäischen Großschollenscharniers." Doctoral thesis, Technische Universitaet Bergakademie Freiberg Universitaetsbibliothek "Georgius Agricola", 2013. http://nbn-resolving.de/urn:nbn:de:bsz:105-qucosa-130056.

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Die einer unterschiedlichen Genese zuordenbaren tektonischen Strukturen, welche sich im Raum des Thüringer Waldes bündeln, formten in einem gerichteten Entwicklungsablauf das komplizierteste und vielseitigste hochoberkarbonisch-unterpermische Strukturgebäude Mitteleuropas. In dieser Arbeit wird der Versuch einer Synthese der strukturellen und der daran geknüpften vulkanogen-sedimentären Entwicklung innerhalb der permokarbonischen Thüringer Wald-Senke und ihres unmittelbaren mitteleuropäischen Umfeldes unternommen. Sie stützt sich dabei maßgeblich auf die Ergebnisse langfristig durchgeführter Kartierungsarbeiten, die in diskontinuierlichen Bearbeitungsphasen seit 1957 bis in die 90er Jahre des vergangenen Jahrhunderts erfolgten. Einbezogen werden die Ergebnisse von insgesamt 54 Forschungs- und Erkundungsbohrungen, die zu einem Großteil im Kontext dieser Arbeiten geteuft worden sind. 36 Bohrprofile werden hier erstmals vollständig beschrieben und publiziert. Neben einer nochmaligen Überprüfung der gesamten lithostratigraphischen Abfolge in der permokarbonischen Thüringer Wald-Senke besteht die Zielstellung der Arbeit in deren Einbindung in die regionale mitteleuropäische strukturelle Entwicklung während dieser Zeitspanne, beginnend bei den potenziellen variszisch-kollisional angelegten Wurzeln der permokarbonischen Strukturen, über ihre weitere tektono-magmatische Ausgestaltung bis hin zur Ausprägung der postvariszischen Großschollenfelderung Mitteleuropas am Ende des Permokarbons.
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Books on the topic "Permian tectonic"

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1947-, Stone Paul, and Geological Society of America, eds. Stratigraphic relations and tectonic significance of rocks near the Permian-Triassic boundary, southern Inyo Mountains, California. Boulder, Colo: Geological Society of America, 2000.

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H, Stevens Calvin, and Stone Paul 1947-, eds. The Pennsylvanian-early Permian Bird Spring carbonate shelf, Southeastern California: Fusulinid biostratigraphy, paleogeographic evolution, and tectonic implications. Boulder, Colo: Geological Society of America, 2007.

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Matthew, Laroche T., Viveiros J. J, and West Texas Geological Society, eds. Structure and tectonics of the Big Bend Area and Southern Permian Basin, Texas: West Texas Geological Society 1994 field trip guidebook. [Midland, Tex.?]: West Texas Geological Society, 1994.

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Stevens, Calvin H., and Paul Stone. The Pennsylvanian-Early Permian Bird Spring Carbonate Shelf, Southeastern California: Fusulinid Biostratigraphy, Paleogeographic Evolution, and Tectonic Implications. Geological Society of America, 2007. http://dx.doi.org/10.1130/spe429.

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Stevens, Calvin H., and Paul Stone. The Pennsylvanian-Early Permian Bird Spring Carbonate Shelf, Southeastern California: Fusulinid Biostratigraphy, Paleogeographic Evolution, and Tectonic Implications (Gsa Special Papers). Geological Society of Amer, 2007.

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Special Paper 429: The Pennsylvanian-Early Permian Bird Spring Carbonate Shelf, Southeastern California: Fusulinid Biostratigraphy, Paleogeographic Evolution, and Tectonic Implications. Geological Society of America, 2007. http://dx.doi.org/10.1130/978-0-8137-2429-4.

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Chen, Hanlin, and Shufeng Yang. Early Permian Tarim Large Igneous Province in Northwest China: Tectonics, Petrology, Geochemistry, and Geophysics. Elsevier, 2018.

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Chen, Hanlin, and Shufeng Yang. Early Permian Tarim Large Igneous Province in Northwest China: Tectonics, Petrology, Geochemistry, and Geophysics. Elsevier, 2018.

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Maddin, Hillary Catherine. Cranial anatomy of Ennatosaurus tecton (Synapsida: Caseidae) from the Middle Permian of Russia, and the evolutionary relationships of Caseidae. 2006.

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Ramberg, I. B., and E. R. Neumann. Tectonics and Geophysics of Continental Rifts: Volume Two of the Proceedings of the NATO Advanced Study Institute Paleorift Systems with Emphasis on the Permian Oslo Rift, Held in Oslo, Norway, July 27 - August 5 1977. Springer London, Limited, 2012.

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Book chapters on the topic "Permian tectonic"

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Su, Ben-Xun. "Permian Mantle Plume and Paleozoic Tectonic Evolution." In Mafic-ultramafic Intrusions in Beishan and Eastern Tianshan at Southern CAOB: Petrogenesis, Mineralization and Tectonic Implication, 183–207. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-54262-6_9.

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Wan, Tianfeng. "Tectonics of Late Permian-Triassic (The Indosinian Tectonic Period, 260–200 Ma)." In The Tectonics of China, 149–72. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11868-5_6.

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Wan, Tianfeng. "Tectonics of Middle Devonian-Middle Permian (The Tianshan Tectonic Period, 397–260 Ma)." In The Tectonics of China, 121–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-11868-5_5.

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Uliana, M. A., and K. T. Biddle. "Permian to Late Cenozoic Evolution of Northern Patagonia: Main Tectonic Events, Magmatic Activity, and Depositional Trends." In Gondwana Six: Structure, Tectonics, and Geophysics, 271–86. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm040p0271.

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Hozik, Michael J. "Tectonic implications of the brittle fracture history of the Permian Narragansett Pier Granite, Rhode Island." In Proceedings of the International Conferences on Basement Tectonics, 503–25. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1614-5_34.

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Vackiner, Anna Alexandra. "Syndepositional Tectonic Controls and Palaeo-Topography of a Permian Tight Gas Reservoir in NW Germany." In Springer Theses, 31–53. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-36047-3_4.

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Al-Helal, Anwar, Yaqoub AlRefai, Abdullah AlKandari, and Mohammad Abdullah. "Subsurface Stratigraphy of Kuwait." In The Geology of Kuwait, 27–50. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-16727-0_2.

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AbstractThis chapter reviews the subsurface stratigraphy of Kuwait targeting geosciences educators. The lithostratigraphy and chronostratigraphy of the reviewed formations (association of rocks whose components are paragenetically related to each other, both vertically and laterally) followed the formal stratigraphic nomenclature in Kuwait. The exposed stratigraphic formations of the Miocene–Pleistocene epochs represented by the Dibdibba, Lower Fars, and Ghar clastic sediments (Kuwait Group) were reviewed in the previous chapter as part of near-surface geology. In this chapter, the description of these formations is based mainly on their subsurface presence. The description of the subsurface stratigraphic formations in Kuwait followed published academic papers and technical reports related to Kuwait’s geology or analog (GCC countries, Iraq and Iran) either from the oil and gas industry or from different research institutions in Kuwait and abroad. It is also true that studies related to groundwater aquifer systems also contribute to our understanding of the subsurface stratigraphy of Kuwait for the shallower formations. The majority of the published data were covered the onshore section of Kuwait. The subsurface stratigraphic nomenclature description is based on thickness, depositional environment, sequence stratigraphy, the nature of the sequence boundaries, biostratigraphy, and age. The sedimentary strata reflect the depositional environment in which the rocks were formed. Understanding the characteristics of the sedimentary rocks will help understand many geologic events in the past, such as sea-level fluctuation, global climatic changes, tectonic processes, geochemical cycles, and more, depending on the research question. The succession of changing lithological sequences is controlled by three main factors; sea-level change (eustatic sea level), sediment supply, and accommodation space controlled by regional and local tectonics influences. Several authors have developed theoretical methods, established conceptual models, and produced several paleofacies maps to interpret Kuwait’s stratigraphic sequence based on the data collected over time intervals from the Late Permian to Quaternary to reconstruct the depositional history of the Arabian Plate in general and of Kuwait to understand the characteristics of oil and gas reservoirs.
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Forsythe, Randall D., Dennis V. Kent, Constantino Mpodozis, and John Davidson. "Paleomagnetism of Permian and Triassic Rock, Central Chilean Andes." In Gondwana Six: Structure, Tectonics, and Geophysics, 241–52. Washington, D. C.: American Geophysical Union, 2013. http://dx.doi.org/10.1029/gm040p0241.

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Korsch, R. J., K. D. Wake-Dyster, P. E. O’brien, D. M. Finlayson, and D. W. Johnstone. "Geometry of Permian to Mesozoic Sedimentary Basins in Eastern Australia and their Relationship to the New England Orogen." In Basement Tectonics 9, 85–108. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2654-0_5.

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Tanczyk, Elizabeth I. "Permian Tectonics from the Gulf of St. Lawrence: Evidence from Paleomagnetism." In Proceedings of the International Conferences on Basement Tectonics, 480. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-017-0833-3_40.

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Conference papers on the topic "Permian tectonic"

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Riggs, Nancy R., Andrew P. Barth, J. Douglas Walker, Philip Lindner, Carlos Gonzalez-Leon, M. Robinson Cecil, and Kathleen M. Marsaglia. "IMPLICATIONS OF PERMIAN MAGMATISM IN SOUTHWEST LAURENTIA FOR TECTONIC RECONSTRUCTIONS." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-279985.

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Song, Dongfang, Wenjiao Xiao, and Chunming Han. "LATE CARBONIFEROUS-PERMIAN SUBDUCTION-ACCRETION TECTONICS OF THE ALXA TECTONIC BELT (NW CHINA), SOUTHERN CENTRAL ASIAN OROGENIC BELT." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-317543.

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Soreghan, Gerilyn S., and Michael J. Soreghan. "TECTONIC AND CLIMATIC IMPLICATIONS OF CLASTIC DISPERSAL PATHWAYS IN THE PERMIAN MID-CONTINENT." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-282227.

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Gao, Zihui, and Nicholas Perez. "LATE PALEOZOIC TECTONIC FRAMEWORK OF THE SOUTH-CENTRAL REGION AND EVOLUTION OF THE PERMIAN BASIN." In 51st Annual GSA South-Central Section Meeting - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017sc-289647.

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Farag, Adel, Kirsten N. Nicholson, Shawn J. Malone, Jeffry D. Grigsby, and Eric S. Lange. "WHOLE ROCK CHEMISTRY AND TECTONIC EVALUATION OF PERMIAN- TRIASSIC SEVEN DEVILS JUVENILE ARC, WESTERN IDAHO." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-321527.

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Taghdisi Nikbakht, S., Y. Nasiri, P. Rezaee, and R. Moussavi-Harami. "Provenance and Tectonic Setting of Early Permian Strata in the Kalmard Area, Central Iran Zone." In 83rd EAGE Annual Conference & Exhibition. European Association of Geoscientists & Engineers, 2022. http://dx.doi.org/10.3997/2214-4609.202210808.

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Wenke, A., L. Rohrer, R. Zühlke, H. Kreuter, F. Spath, and S. Bißmann and E. Zöllner. "Tectonic Evolution, Reservoir Distribution and Hydrothermal Potential of the Permian in the Northern Upper Rhine Graben." In 1st Sustainable Earth Sciences Conference and Exhibition (SES2011). Netherlands: EAGE Publications BV, 2011. http://dx.doi.org/10.3997/2214-4609.20144132.

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Kennedy, Rebekah, Ryan J. McAleer, Phillip Resor, and Robert P. Wintsch. "THE ALLEGHANIAN TECTONIC SETTING OF THE ACADIAN HIGHLANDS OF WESTERN CONNECTICUT REVEALED BY PERMIAN INTRUSIVE FELSITES." In Northeastern Section - 57th Annual Meeting - 2022. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022ne-374611.

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Saldin, V. S. "The situation of studies of the Upper Paleozoic reefogenic formations on the Podcherem River (Bol'shaya Synya Depression, Pre-Urals Foredeep)." In All-Russia Lithological Meeting «Geology of reefs». Institute of Geology FRC Komi SC UB RAS, 2020. http://dx.doi.org/10.19110/98491-013-108-110.

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Different views on the Upper Paleozoic reefogenic limestones in the section of the Podcherem River during the period from 1960 to 2003 are presented. There are contradictory opinions of thickness, age, and section structure of the Upper Carboniferous (?) — Lower Permian reefogenic limestones of the Podcherem River. Underscore, a different interpretation of their paleogeographic position in the sedimentation basin and modern tectonic structure. To resolve controversial questions, focused research on theis reefogenic limestones is necessary.
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Kosmacheva, Alina Yu, Sergey S. Semenov, and Marina O. Fedorovich. "History of tectonic development and quantitative assessment of source rock generation power in the tolon field (Sakha Yakutia)." In Недропользование. Горное дело. Направления и технологии поиска, разведки и разработки месторождений полезных ископаемых. Экономика. Геоэкология. Федеральное государственное бюджетное учреждение науки Институт нефтегазовой геологии и геофизики им. А.А. Трофимука Сибирского отделения Российской академии наук, 2020. http://dx.doi.org/10.18303/b978-5-4262-0102-6-2020-013.

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Abstract:
The paper is aimed at the geoseismic interpretation, picking principal reflection horizons, structure and isopach map generation. The maps, seismic- and paleosections are an integral part not only of the structure-and-tectonic description, but also history analysis of the Tolon field. The research identifies gas-window-entry time of the Permian source rock, initial development and power of intense gas generation, present-day generation points in the source rocks. Funding: The reported study was funded by RFBR, project number 19-35-90039.
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Reports on the topic "Permian tectonic"

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Zagorevski, A., C. R. van Staal, J. H. Bédard, A. Bogatu, D. Canil, M. Coleman, M. Golding, et al. Overview of Cordilleran oceanic terranes and their significance for the tectonic evolution of the northern Cordillera. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/326053.

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Ophiolite complexes are an important component of oceanic terranes in the northern Cordillera and constitute a significant amount of juvenile crust added to the Mesozoic Laurentian continental margin during Cordilleran orogenesis. Despite their tectonic importance, few systematic studies of these complexes have been conducted. Detailed studies of the pseudostratigraphy, age, geochemistry, and structural setting of ophiolitic rocks in the northern Cordillera indicate that ophiolites formed in Permian to Middle Triassic suprasubduction zone settings and were obducted onto passive margin sequences. Re-evaluation of ophiolite complexes highlights fundamental gaps in the understanding of the tectonic framework of the northern Cordillera. The previous inclusion of ophiolite complexes into generic 'oceanic' terranes resulted in significant challenges for stratigraphic nomenclature, led to incorrect terrane definitions, and resulted in flawed tectonic reconstructions.
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Theriault, P., and B. Beauchamp. Preliminary Interpretation of the Depositional History and Tectonic Significance of the Carboniferous To Permian Canyon Fiord Formation, West - Central Ellesmere Island, Arctic Archipelago. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1991. http://dx.doi.org/10.4095/132551.

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