Carboniferous Granitoid Magmatism of Northern Taimyr: Results of Isotopic-Geochemical Study and Geodynamic Interpretation

Kurapov, Mikhail; Ershova, V. B.; Makariev, Alexander; Makarieva, Elena; Khudoley, A. K.; Luchitskaya, M. V.; Prokopiev, A. V.

doi:10.1134/s0016852118020048

Cited by 13 publications

(13 citation statements)

References 24 publications

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“…Latest Permian-Triassic granite intrusions occur in all three tectonic domains of Taimyr (Augland et al, 2019;Khudoley et al, 2018 Vernikovsky et al, 2003). This widespread distribution distinguishes them from Carboniferous-Middle Permian granite intrusions, which are restricted to the Northern (Kurapov et al, 2018(Kurapov et al, , 2020Lorenz et al, 2007;Pease et al, 2015;Vernikovsky, 1996;Vernikovsky et al, 1998b) and, locally, Central (Khudoley et al, 2018) Taimyr Domains.…”

Section: Previous Studies Of Latest Permian-triassic Magmatismmentioning

confidence: 98%

“…These sediments were originally believed to be Proterozoic in age (Bezzubtsev et al, 1986;Pogrebitsky and Lopatin, 2000;Pogrebitsky and Shanurenko, 1998), but recent studies have revealed that they are actually Cambrian and younger in age (Ershova et al, 2015a(Ershova et al, , 2015b(Ershova et al, , 2017(Ershova et al, , 2020Lorenz et al, 2007;Scott, 2009, Pease et al, 2015). Lower Paleozoic sedimentary rocks of the Northern Taimyr Domain are intruded by granitic plutons of Carboniferous to Triassic age (Kurapov et al, 2018;Lorenz et al, 2007;Pease et al, 2015;Vernikovsky et al, 1995Vernikovsky et al, , 1998b.…”

Section: ■ Geological Settingmentioning

confidence: 99%

“…Granite intrusions of different ages are known from the Taimyr-Severnaya Zemlya fold-and-thrust belt (Fig. 1B) and can be used to decipher the tectonic evolution of the region (Augland et al, 2019;Khudoley et al, 2018;Kurapov et al, 2018Kurapov et al, , 2020Lorenz et al, 2007;Pease et al, 2015;Vernikovsky, 1996;Vernikovsky et al, 1995Vernikovsky et al, , 1998aVernikovsky et al, , 1998bVernikovsky et al, , 2003Vernikovsky et al, , 2020. Latest Permian-Triassic intrusions are less prevalent and are mainly found across the northwestern part of the Taimyr Peninsula (Augland et al, 2019;Proskurnina et al, 2019;Vernikovsky et al, 2003).…”

Section: ■ Introductionmentioning

confidence: 99%

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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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Section: Previous Studies Of Latest Permian-triassic Magmatismmentioning

confidence: 98%

Section: ■ Geological Settingmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

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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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“…The metasedimentary succession of northern Taimyr was intruded upon by Late Paleozoic granites during the continental collision with Siberia [4,14,19,20,22].…”

Section: Northern Taimyrmentioning

confidence: 99%

U–Pb Age and Hf Isotope Geochemistry of Detrital Zircons from Cambrian Sandstones of the Severnaya Zemlya Archipelago and Northern Taimyr (Russian High Arctic)

et al. 2019

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U–Pb and Lu–Hf isotope analyses of detrital zircons collected from metasedimentary rocks from the southern part of Kara Terrane (northern Taimyr and Severnaya Zemlya archipelago) provide vital information about the paleogeographic and tectonic evolution of the Russian High Arctic. The detrital zircon signatures of the seven dated samples are very similar, suggesting a common provenance for the clastic detritus. The majority of the dated grains belong to the late Neoproterozoic to Cambrian ages, which suggests the maximum depositional age of the enclosing sedimentary units to be Cambrian. The εHf(t) values indicate that juvenile magma mixed with evolved continental crust and the zircons crystallized within a continental magmatic arc setting. Our data strongly suggest that the main provenance for the studied clastics was located within the Timanian Orogen. A review of the available detrital zircon ages from late Neoproterozoic to Cambrian strata across the wider Arctic strongly suggests that Kara Terrane, Novaya Zemlya, Seward Peninsula (Arctic Alaska), Alexander Terrane, De Long Islands, and Scandinavian Caledonides all formed a single tectonic domain during the Cambrian age, with clastics predominantly sourced from the Timanian Orogen.

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“…Further studies of the Taimyr granites using precise isotope-geochronological methods established that their ages are Paleozoic-from 315 to 250 Ma [32,[50][51][52][53] and also identified late Carboniferous (autochthonous) and early Permian (parautochthonous) syncollisional granitoids, as well as late Permian postcollisional (allochthonous) granitoids with compositions ranging from S-type granites to transitional S-I-and A-types [54,55].…”

Section: Introductionmentioning

confidence: 99%

Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events

et al. 2020

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We present new structural, petrographic, geochemical and geochronological data for the late Paleozoic–early Mesozoic granites and associated igneous rocks of the Taimyr Peninsula. It is demonstrated that large volumes of granites were formed due to the oblique collision of the Kara microcontinent and the Siberian paleocontinent. Based on U-Th-Pb isotope data for zircons, we identify syncollisional (315–282 Ma) and postcollisional (264–248 Ma) varieties, which differ not only in age but also in petrochemical and geochemical features. It is also shown that as the postcollisional magmatism was coming to an end, Siberian plume magmatism manifested in the Kara orogen and was represented by basalts and dolerites of the trap formation (251–249 Ma), but also by differentiated and individual intrusions of monzonites, quartz monzonites and syenites (Early–Middle Triassic) with a mixed crustal-mantle source. We present a geodynamic model for the formation of the Kara orogen and discuss the relationship between collisional and trap magmatism.

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Carboniferous Granitoid Magmatism of Northern Taimyr: Results of Isotopic-Geochemical Study and Geodynamic Interpretation

Cited by 13 publications

References 24 publications

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

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

U–Pb Age and Hf Isotope Geochemistry of Detrital Zircons from Cambrian Sandstones of the Severnaya Zemlya Archipelago and Northern Taimyr (Russian High Arctic)

Late Paleozoic–Early Mesozoic Granite Magmatism on the Arctic Margin of the Siberian Craton during the Kara-Siberia Oblique Collision and Plume Events

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