First results of U/Pb dating of detrital zircons from middle Riphean sandstones of the Zigalga Formation, South Urals

Кузнецов, Н. Б.; Белоусова, Е. А.; Romanyuk, T. V.; Degtyarev, K. E.; Маслов, А. В.; Горожанин, В. М.; Горожанина, Е. Н.; Pyzhova, E. S.

doi:10.1134/s1028334x17080244

Cited by 14 publications

(6 citation statements)

References 13 publications

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“…Zircons of the Middle Paleoproterozoic (orosirian) age level could be eroded during the destruction of orogens that connected separate parts of the Volga-Uralia in the interval 2.1-1.8 Ga, such as the hypothetical Taratash orogen [19] and, possibly, an orogen in the northern part of the Volga-Uralia (in modern coordinates), the relics of which may be Paleoproterozoic metamorphic and granitoid complexes of the Kozhim and Sob transverse uplifts of the Subpolar and Polar Urals, respectively, as well as the Volga-Sarmatia orogen, which arose during the collision of the Volga-Uralia and Sarmatia. Endogenous formations of the Volyn-Central-Russian orogeny, resulted from the collision of the Volga-Sarmatia and Fennoscandia, could be sources of demolition of zircons of the Late Paleoproterozoic (statherian) age level.…”

Section: Comparison Of the Received Data With The Results Of Zircon Dating From The Upper Precambrian Terrigenous Deposits Of Timan And Tmentioning

confidence: 99%

“…4, e, f). As applied to the Southern Ural Neoproterozoic deposits, it is assumed that the Volga-Sarmatia and Taratash orogens were the main source of the Early Proterozoic zircons [19]. This is probably also true for the deposits of the Dzhezhim suite.…”

Section: Comparison Of the Received Data With The Results Of Zircon Dating From The Upper Precambrian Terrigenous Deposits Of Timan And Tmentioning

confidence: 99%

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Geochronology of Precambrian formations of the north of the Urals

Pystin¹,

Pystina²

2021

Vestnik Geonauk

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The paper summarizes results of work on the geochronological confirmation of the age of metamorphic structures occurring at the base of the Precambrian of the north of the Urals and the age of overlying Upper Precambrian basal sediments. It is shown that the occurrences of early stages of metamorphism of rocks of metamorphic (polymetamorphic) complexes date back to about 2.1 Ga. Their substrate is unambiguously related to the Lower Precambrian. We determined that Mesoproterozoic strata are absent Upper Precambrian sections of the north of the Urals, in contrast to more southern regions of the Urals. The basal strata in the Lyapin and Kharbey-Marunkeu anticlinoria, according to the data obtained, are dated to the Middle Neoproterozoic (cryogenian). The established fact of the absence of deposits of a huge age interval (Mesoproterozoic — at least 600 Ma) in the north of the Urals can be explained by a high standing of the territory of the northeast (in modern coordinates) of the Baltic craton, a fragment of which at that time was the Timan-Northern Ural lithospheric segment, and the location in the interiors of the Columbia (Nuna) supercontinent.

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Section: Comparison Of the Received Data With The Results Of Zircon Dating From The Upper Precambrian Terrigenous Deposits Of Timan And Tmentioning

confidence: 99%

Section: Comparison Of the Received Data With The Results Of Zircon Dating From The Upper Precambrian Terrigenous Deposits Of Timan And Tmentioning

confidence: 99%

Geochronology of Precambrian formations of the north of the Urals

Pystin¹,

Pystina²

2021

Vestnik Geonauk

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“…обзор в [Tevelev et al, 2015]). Вместе с анализом характеристик детритовых цирконов из рифейских толщ БП это позволило интерпретировать тараташский комплекс как реликт палеопротерозойского Тараташского орогена (ТО) [Kuznetsov et al, 2017]. Этот ороген в структуре Колумбии мог включать коровые блоки Рис.…”

Section: интерпретация полученных данныхunclassified

Paleotectonic and Paleogeographic Conditions for the Accumulation of the Lower Riphean Ai Formation in the Bashkir Uplift (Southern Urals): The Terranechrone® Detrital Zircon Study

Romanyuk

Кузнецов

Белоусова³

et al. 2018

Geodin. tektonofiz.

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The TerraneChrone ® (LA-ICP-MS) technique has been applied to carry out an integrated study of detrital zircons in sandstones sampled from the basal horizons of the stratotypical Riphean sequence in the Southern Urals, specifically the Navysh and Chudin suites of the Ai Formation of the Burzyan Group in the Bashkir Uplift. The concentrations of trace elements in the detrital zircons suggest that the role of oceanic or marginal-marine complexes among the primary sources of zircons was insignificant, and show a better agreement with the intra-continental rather than passive-margin origin of the Riphean basin, whose basal levels are composed by the Ai Formation. The U/Pb ages of zircons from samples K13-206 and M08-16-1 are generally similar: the Paleoproterozoic zircons predominate (the dominant peaks are actually coincident, 2063 and 2055 Ma), and only a few grains of the Archean age are present. Despite the similar U/Pb ages of the detrital zircons, these two samples considerably differ in their Hf isotopic features and the concentrations of trace elements, which means that the zircons in the studied sandstones are of different geodynamic origin. The characteristics of these zircons can be explained by a model showing the Ai Formation in the Navysh graben that is a rift structure and a predecessor of the Kama-Belaya aulacogene in the inner Volga-Ural region of the Paleoproterozoic supercontinent Columbia. At the initial stage of rifting, the granitoid complexes with a lower total silicic acidity, which composed the graben walls, had been eroded; as a result of erosion, coarse clastic P a l e o g e o d y n a m i c s RESEARCH ARTICLE

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“…Результаты геохронологического и изотопно-геохимического изучения циркона из разновозрастных докембрийских и палеозойских осадочных, магматических и метаморфических комплексов (протоуралид и уралид) Южного Урала позволили существенно уточнить характер геодинамической эволюции южного сегмента уральского обрамления Восточно-Европейской платформы (ВЕП) [Samygin et al, 2007[Samygin et al, , 2010Puchkov, 2010;Kuznetsov et al, 2012Kuznetsov et al, , 2014Kuznetsov et al, , 2017Romanyuk et al, 2014;Maslov et al, 2016;Ryazantsev et al, 2019;Kuznetsov, Romanyuk, 2021; и ссылки в данных работах]. В то же время некоторые комплексы запада Южного Урала все еще остаются недостаточно охарактеризованными в этом отношении.…”

Section: Introductionunclassified

ON PALEOTECTONIC BELONGING OF THE SUVANYAK METAMORPHIC COMPLEX (SOUTHERN URALS) FROM THE U-Th-Pb DATING OF DETRITAL ZIRCON GRAINS

Голионко

Кузнецов

Strashko

et al. 2023

Geodin. tektonofiz.

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U-Th-Pb isotope dating of grains of detrital zircon from quartzites of the Suvanyak metamorphic complex, which forms the Suvanyak tectonic unit that forms the western part of the Uraltau uplift, located in the east of the West Ural megazone in the Southern Urals. The results of isotope dating of grains of detrital zircon from quartzites of the southern part of the Suvanyak metamorphic complex (samples G18-1 and R14-396) show that numerous populations of Late Neoproterozoic–Early Cambrian detrital zircon grains suggest a Peri-Gondwanan origin of the primary sources of detrital material for the protolith of the studied rocks.The structure of the Suvanyak tectonic unit involves metamorphic formations of different ages – Early Paleozoic in the south and Late Precambrian in the north, which are now formally united into a single Suvanyak metamorphic complex. Their differentiation requires additional research.For the Late Paleozoic southeastern margin of the Baltica (at that time already involved in the structure of the composite continent Arct-Laurussia), according to the results of isotope-geochronological study of detrital zircon from the sedimentary and metasedimentary sequences of the Southern Urals, a number of the following tectonic structures were identified. Near the southeastern edge of the margin, there was a Late Neoproterozoic–Early Cambrian oceanic basin, within which a volcanic arc or arcs were active during 650–520 Ma. The structure of the southeastern edge of the margin included the Peri-Gondwanan terrane or terranes (? Cadomian type), as well as thick Riphean-Early Paleozoic sedimentary sequences, autochthonous to the Baltica.

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First results of U/Pb dating of detrital zircons from middle Riphean sandstones of the Zigalga Formation, South Urals

Cited by 14 publications

References 13 publications

Geochronology of Precambrian formations of the north of the Urals

Geochronology of Precambrian formations of the north of the Urals

Paleotectonic and Paleogeographic Conditions for the Accumulation of the Lower Riphean Ai Formation in the Bashkir Uplift (Southern Urals): The Terranechrone® Detrital Zircon Study

ON PALEOTECTONIC BELONGING OF THE SUVANYAK METAMORPHIC COMPLEX (SOUTHERN URALS) FROM THE U-Th-Pb DATING OF DETRITAL ZIRCON GRAINS

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