Late Triassic high-potassium trachitic volcanism of the northeast of the Siberian platform: Evidence in the sedimentary record

Летникова, Е. Ф.; Изох, А. Э.; Николенко, Е. И.; Pokhilenko, N. P.; Shelestov, V. O.; Hilen, Geng; Lobanov, Sergey S.

doi:10.1134/s1028334x14110221

Cited by 19 publications

(17 citation statements)

References 9 publications

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“…The Osipai Formation detrital Cr‐spinel chemistry is generally consistent with a provenance from a LIP, while detrital Cr‐spinel of this study is consistent with a metamorphosed ophiolitic source. Detrital zircon geochronological data from the Barents Shelf study area and the Osipai Formation appear similar and contain the same ~235 Ma peak (Bue & Andresen, 2014; Fleming et al., 2016; Letnikova et al., 2014; Soloviev et al., 2015). The different interpretations reached based on detrital Cr‐spinel chemical and zircon geochronological data thus exemlify the value of considering more than one mineral in provenance studies…”

Section: Discussionmentioning

confidence: 94%

“…However, Midwinter, Hadlari, Davis, Dewing, and Arnott (2016) have documented the presence of Triassic‐age zircons in Upper Triassic deposits in the Sverdrup Basin, which they attribute to subduction‐driven volcanism offshore the Sverdrup Basin. Detrital zircons from the Carnian Osipai Formation, located in the Lena River delta area, display a similar age distribution to those in the Barents Shelf (Letnikova et al., 2014). The ~235 Ma age peak present in these data is associated with local volcanism (Letnikova et al., 2014).…”

Section: Geological Settingmentioning

confidence: 94%

“…Detrital zircons from the Carnian Osipai Formation, located in the Lena River delta area, display a similar age distribution to those in the Barents Shelf (Letnikova et al., 2014). The ~235 Ma age peak present in these data is associated with local volcanism (Letnikova et al., 2014). Detrital Cr‐spinel compositions from the same formation suggest that the Siberian Traps LIP is a major source (Nikolenko et al, 2018).…”

Section: Geological Settingmentioning

confidence: 94%

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The importance of trace element analyses in detrital Cr‐spinel provenance studies: An example from the Upper Triassic of the Barents Shelf

2020

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Section: Discussionmentioning

confidence: 94%

Section: Geological Settingmentioning

confidence: 94%

Section: Geological Settingmentioning

confidence: 94%

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The importance of trace element analyses in detrital Cr‐spinel provenance studies: An example from the Upper Triassic of the Barents Shelf

2020

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“…In addition, the age distribution of detrital zircons in Mesozoic sedimentary and volcano-sedimentary rocks from the northeastern part of the Siberian Craton (Grahanov et al, 2013(Grahanov et al, , 2015Letnikova et al, 2014) encompasses both the latest Permian-Early Triassic and Middle-Late Triassic magmatic pulses of the Siberian Traps LIP.…”

Section: Sample Locationmentioning

confidence: 99%

Latest Permian–Triassic magmatism of the Taimyr Peninsula: New evidence for a connection to the Siberian Traps large igneous province

et al. 2021

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This study presents new whole rock major and trace element, Sr-Nd isotopic, petrographic, and geochronologic data for seven latest Permian (Changhsingian)–Late Triassic (Carnian) granitoid intrusions of the northwestern and northeastern Taimyr Peninsula in the Russian High Arctic. U-Pb zircon ages, obtained using secondary ion mass spectrometry (SIMS), sensitive high-resolution ion microprobe (SHRIMP), and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS), define the crystallization age of the Taimyr intrusions studied as ranging from ca. 253 Ma to 228 Ma, which suggests two magmatic pulses of latest Permian–Early Triassic and Middle–Late Triassic age. Ar-Ar dating of biotite and amphibole indicate rapid cooling of the intrusions studied, but Ar-Ar ages of several samples were reset by secondary heating and hydrothermal activity induced by the Middle–Late Triassic magmatic pulse. Petrographic data distinguish two groups of granites: syenite–monzonites and granites–granodiorites. Sr-Nd isotopic data, obtained from the same intrusions, show a variation of initial (87Sr/86Sr)i ratios between 0.70377 and 0.70607, and εNd(t) values range between –6.9 and 1.2. We propose that the geochemical and isotopic compositions of the Late Permian–Triassic Taimyr granites record the existence of a magma mush zone that was generated by the two pulses of Siberian Traps large igneous province (LIP) magmatism.

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“…Время кристаллизации пород Чадобецкого комплекса соотносится с возрастом формирования крупной изверженной провинции (LIP) в пределах Сибирской платформы. Так, оно близко возрасту проявления траппового магматизма [Basu et al, 1995], внедрения ультраосновных щелочных пород и карбонатитов Маймеча-Котуйской провинции [Dalrymple et al, 1995;Kogarko, Zartman, 2011;Malich et al, 2015;Ghobadi et al, 2018], внедрения посттрапповых кимберлитов Анабарского и Оленекского районов [Sun et al, 2014;Carlson et al, 2006], а также схоже со временем кристаллизации других щелочных пород и лампрофиров Сибирской платформы [Vrublevskii et al, 2005;Letnikova et al, 2014].…”

Section: Introductionunclassified

GEOCHRONOLOGY OF THE CHADOBETS ALKALINE ULTRAMAFIC CARBONATITE COMPLEX (SIBERIAN CRATON): NEW U-Pb AND Ar-Ar DATA

Prokopyev

Doroshkevich

Malyutina

et al. 2021

Geodin. tektonofiz.

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The Chadobets alkaline ultramafic carbonatite complex is located on the Siberian craton within the southern boundary of the Permian-Triassic plume activity. The dating of xenogenic zircons from the weathering crust of carbonatites of the Chuktukon complex yielded four clusters with ages of 1870-1820, 495-385, 290-210 and 215-162 Ma. The first two clusters correspond to the dates of activity of Paleoproterozoic granitoid magmatism and Paleozoic alkaline-mafic tectono-magmatic activity, widely occurred in the Siberian craton and its southern framing. The age of crystallization of alkaline rocks of the Chadobets complex falls within the interval of 255-240 Ma. Ar-Ar dating of damtjernite and carbonatite minerals of the Chuktukon complex falls within the intervals of 250.5±3.7 and 247.1±5.7 Ma, respectively. The crystallization ages of the mela-aillikites and damtjernites of the Terina complex, according to the Ar-Ar dating, correspond to the intervals of 257.4±3.9, 241.1±3.7, and 240±3.6 Ma. The age interval of 215-162 Ma based on zircons from the carbonatite weathering crust of the Chuktukon complex reflects the geochronology of superimposed processes and indicates the different stages of alteration of igneous rocks of the Chadobets complex. The data obtained on the age of crystallization of alkaline rocks of the Chadobets complex are consistent with the age interval of Siberian plume activity within a large igneous province (LIP).

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Late Triassic high-potassium trachitic volcanism of the northeast of the Siberian platform: Evidence in the sedimentary record

Cited by 19 publications

References 9 publications

The importance of trace element analyses in detrital Cr‐spinel provenance studies: An example from the Upper Triassic of the Barents Shelf

The importance of trace element analyses in detrital Cr‐spinel provenance studies: An example from the Upper Triassic of the Barents Shelf

Latest Permian–Triassic magmatism of the Taimyr Peninsula: New evidence for a connection to the Siberian Traps large igneous province

GEOCHRONOLOGY OF THE CHADOBETS ALKALINE ULTRAMAFIC CARBONATITE COMPLEX (SIBERIAN CRATON): NEW U-Pb AND Ar-Ar DATA

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