The importance and difficulties of identifying mantle plumes in orogenic belts: An example based on the fragmented large igneous province (LIP) record in the Ural fold belt

Puchkov, V. N.; Ernst, Richard E.; Иванов, К. С.

doi:10.1016/j.precamres.2021.106186

Cited by 14 publications

(3 citation statements)

References 109 publications

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“…These facts allow us to link the copper mineral formation in the ore occurrences of the Alatau anticlinorium with the introduction of the Inzer complex gabbrodolerites and the activity of postmagmatic fluids. The formation time of this complex coincides with the age of Arsha LIP, which was formed at the turn of 707-732 Ma due the collapse of the Rodinia supercontinent [111,112]. According to V.N.…”

Section: Tectonic Control Of Mineral Formation and Connection With In...mentioning

confidence: 79%

Cu and Au Mineralization of the Tolparovo Ore Occurrence: Evidence for the Formation of Redbed Copper Occurrences in Neoproterozoic Deposits of the Southern Urals

Michurin,

Kazbulatova

2024

Minerals

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The mineralization and geochemical features of the Tolparovo ore occurrence are studied to reveal the contribution of diagenetic and epigenetic processes in the formation of copper mineralization in redbed deposits. The methods of electron microscopy, ICP MS, X-ray fluorescence, X-ray phase, atomic absorption, thermogravimetric analyses, and C and O isotopic composition were used. The ore is confined to the fault zone and feathering dolomite–calcite veins, having formed at temperatures of ~330–200 °C and pressures of 0.8–0.2 kbar. Similar to other copper redbed occurrences of the Bashkirian uplift, the Tolparovo copper ore occurrence is confined to basal Neoproterozoic deposits. Siliciclastic and carbonate deposits of this level were accumulated at low paleoequator latitudes in arid climates of continental and coastal–marine environments close to evaporite ones. Rocks of this stratigraphic interval demonstrate increased background concentrations of copper (~2–5 times exceeding the clark), which explains the stratification of redbed copper ore occurrences, indicating a predominantly sedimentary copper source. However, most of the redbed copper ore occurrences of the Bashkirian uplift are located in tectonic zones and are associated with the dikes of the Inzer gabbrodolerite complex. This connects the generation of ore occurrences with the formation of the Southern Urals Arsha Large Igneous Province (707–732 Ma) and the activity of postmagmatic fluids. Magmatic processes were presumably activated due to the collapse of the Rodinia supercontinent. It is shown that copper mineralization in stratiform deposits may result from a joint manifestation of dia- and epigenesis processes.

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Section: Tectonic Control Of Mineral Formation and Connection With In...mentioning

confidence: 79%

Cu and Au Mineralization of the Tolparovo Ore Occurrence: Evidence for the Formation of Redbed Copper Occurrences in Neoproterozoic Deposits of the Southern Urals

Michurin,

Kazbulatova

2024

Minerals

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“…лет) магматизм нижнего и среднего рифея, соответственно [Краснобаев и др., 2007, 2013а, б; 2015; Пучков и др., 2014] и аршинское магматическое событие (709,9±7,3-732±17 млн. лет) завершающего рифея, которое вписывается в эпизоды магматической деятельности, известные на различных континентах на уровне 710-730 млн лет, представляет собой событие субглобального масштаба и в рамках событийной стратиграфии может быть использовано для подтверждения глобальных стратиграфических корреляций [Puchkov et al, 2021].…”

Section: заключениеunclassified

Regional Stratigraphic Scheme of the Upper and Final Riphean and Vendian Deposits of the Southern Urals (Project 2022)

Сергеева

Puchkov

2022

Geol. vestn.

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The need to correct individual stratigraphic levels of the Regional Stratigraphic Scheme of the Upper Precambrian deposits of the Urals, existing since 1993, is due to the receipt of new data from lithological-stratigraphic, geotectonic and isotope-geochronological studies of the Upper Precambrian of the Southern Urals. Significant changes and clarifications in the stratigraphy of the Upper Precambrian formations of the region occurred in the Upper Riphean and Vendian of the Bashkir meganticlinorium in the Southern Urals, where the sections stratotypical for the Riphean and reference for the Vendian are located. The results of dating igneous (primarily volcanic) rocks in the Riphean by modern methods made it possible to refine the geochronological basis of the Ural and General Stratigraphic Scale of the Upper Proterozoic of Russia and identify a new event level: the final Riphean (Arshinian), corresponding to the Arshinian series. Changes and clarifications to the correlation of local stratigraphic sections of the Upper and Final Riphean and Vendian of the Southern Urals are reflected in the draft scheme.

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“…Puchkov et al, 2021). Работа выполнена в рамках тем Госзаданий Минобрнауки РФ FMRS-2022-0011 и FMRS-2022-0013.…”

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Mineralogical and Geochemical Features of Basaltic Magmatism in the Lower Riphean East-European Platform

Дьякова¹,

Гатауллин²

2022

Геосфера. Современные Проблемы Естественных Наук

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Annotation. The article presents the results of the study basalts of the Norkinskaya Formation of the Lower Riphean, uncovered by a borehole 203 Menzelino-Aktanyshs. The mineralogical and geochemical composition of basalts of the Aktanysh complex. Formulas set rock-forming, ore and accessory minerals. Among accessory sites, baddeleyite was noted for the first time -a reliable geochronometer Keywords. Basalts, Lower Riphean, East-European, platform По результатам изотопного датирования магматических событий на востоке Русской плиты выявлены новые событийно стратиграфические уровни -актанышский (нижний рифей),

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The importance and difficulties of identifying mantle plumes in orogenic belts: An example based on the fragmented large igneous province (LIP) record in the Ural fold belt

Cited by 14 publications

References 109 publications

Cu and Au Mineralization of the Tolparovo Ore Occurrence: Evidence for the Formation of Redbed Copper Occurrences in Neoproterozoic Deposits of the Southern Urals

Cu and Au Mineralization of the Tolparovo Ore Occurrence: Evidence for the Formation of Redbed Copper Occurrences in Neoproterozoic Deposits of the Southern Urals

Regional Stratigraphic Scheme of the Upper and Final Riphean and Vendian Deposits of the Southern Urals (Project 2022)

Mineralogical and Geochemical Features of Basaltic Magmatism in the Lower Riphean East-European Platform

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