Results of U–Pb (LA–ICPMS) dating of detrital zircons from metaterrigenous rocks of the basement of the North Kara basin

Ershova, Victoria; Prokopiev, A. V.; Khudoley, A. K.; Shneider, G. V.; Andersen, Tom; Kullerud, Kåre; Makar'ev, A A; Маслов, А. В.; Kolchanov, D. A.

doi:10.1134/s1028334x15100013

Cited by 14 publications

(6 citation statements)

References 7 publications

(9 reference statements)

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“…Therefore, the provenance area for the Upper Triassic–Lower Cretaceous strata of FJL was characterized by a very similar geological history to the Taimyr region and Kara terrane, including major magmatic and uplift events during the Late Paleozoic and Triassic. Moreover, the distribution of Precambrian and Early Paleozoic detrital zircon age populations in the Mesozoic clastic rocks of FJL is comparable to the Early–Middle Paleozoic clastic rocks deposited across the Kara terrane, Novaya Zemlya and Taimyr, suggesting reworking of these older clastic strata in the provenance area (V. B. Ershova, Prokopiev, Khudoley, et al., 2015, 2017; V. B. Ershova, Prokopiev, Nikishin, et al., 2015; V. B. Ershova, Prokopiev, et al., 2019; Lorenz et al., 2008, 2013). A long‐distance sediment transport pathway from distal Taimyr to FJL would seem unlikely, especially for the coarse‐grained Upper Triassic–Lower Jurassic clastics, since the presence of pebbles and cobbles suggests a proximal source region.…”

Section: Discussionmentioning

confidence: 90%

“…Neoproterozoic to Cambrian zircons (650–520 Ma) can be correlated with the main magmatic and metamorphic event of the Timanian orogen, which formed as a result of the latest Neoproterozoic–Cambrian orogeny along the Baltica margin (Gee & Pease, 2004; Kuznetsov et al., 2007, 2010 and refences therein). Moreover, zircons with Timanian crystallization ages are also reported from Cambrian–Devonian deposits of the Severnaya Zemlya archipelago and northern Taimyr (Kara terrane), Novaya Zemlya archipelago, and north‐eastern Baltica (V. B. Ershova, Ivleva, et al., 2019; V. B. Ershova, Prokopiev, Khudoley, et al., 2015, 2017; V. B. Ershova, Prokopiev, et al., 2019; Lorenz et al., 2008, 2013; Pease & Scott, 2009). In addition, dated granite pebble from Graham Bell Island yielded Timanian crystallization ages and the Cambrian quartzite pebbles contain abundant latest Neoproterozoic—Early Cambrian zircons and a subordinate population between 1,800 and 1,300 Ma.…”

Section: Discussionmentioning

confidence: 91%

“…Early Cambrian quartzites are the oldest rocks and were found at both studied localities. Most of the detrital zircons range in age between 650 and 520 Ma and correlate with the age of the Timanian orogeny (Gee & Pease, 2004; Kuznetsov et al., 2007, 2010 and refences therein), which represented a clastic sediment source for much of the Arctic and the interior of Baltica during the late Ediacaran–earliest Cambrian (V. B. Ershova, Ivleva, et al., 2019; V. B. Ershova, Prokopiev, Khudoley, et al., 2015; V. B. Ershova, Prokopiev, et al., 2019; Kuznetsov et al., 2010; Lorenz et al., 2008, 2013). In addition, the crystallization age (520.2 ± 1.3 Ma) of granitic pebbles from the easternmost part of FJL (Graham Bell Island) is similar to the MDA calculated for the quartzite pebbles.…”

Section: Discussionmentioning

confidence: 99%

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Provenance of the Mesozoic Succession of Franz Josef Land (North‐Eastern Barents Sea): Paleogeographic and Tectonic Implications for the High Arctic

et al. 2022

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The Barents Sea sedimentary basin represents one of the key prospective regions for hydrocarbon resources in the Arctic realm (Figures 1a and 1b). However, while the Norwegian part of the Barents Sea is covered by a dense network of seismic lines and penetrated by numerous wells, the Russian portion is comparatively poorly studied. To date, the sedimentary succession of the Russian part has only been penetrated by a few wells drilled in the southern part of the basin and four wells drilled onshore across the Franz Josef Land (FJL) archipelago. FJL represents an important region, where the Mesozoic succession is exposed onshore for geological study (Figure 2b). Due to the lack of offshore wells, this archipelago represents the only area in the north-eastern Barents Sea where the Mesozoic succession can be directly described and sampled, offering vital insights into the geological evolution of this insufficient studied region.The deeper pre-Mesozoic succession of the north-eastern Barents Sea has been mainly constrained by seismic data (

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Section: Discussionmentioning

confidence: 90%

Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

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Provenance of the Mesozoic Succession of Franz Josef Land (North‐Eastern Barents Sea): Paleogeographic and Tectonic Implications for the High Arctic

et al. 2022

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“…Geological succession of Bolshevik Island (Severnaya Zemlya) and the northern Taimyr Peninsula is similar to that known from the borehole on FJL. For example, on Bolshevik Island, Early Cambrian metasedimentary rocks are intruded by Late Paleozoic granites and overlapped by a thin Carboniferous-Permian coal-bearing strata with a sharp angular unconformity [4,6,12]. This may indicate the similarity between Paleozoic geological evolutions of FJL and Kara block areas.…”

Section: Discussionmentioning

confidence: 99%

New data on the basement of Franz Josef Land, Arctic region

et al. 2017

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We have studied pebbles of igneous rocks from the Lower Jurassic sedimentary succession of Hall Island, Franz Josef Land. Pebbles are represented by felsic intrusive and extrusive rocks, often cataclased and greisenized. The U-Pb age of crystallization for zircons of the studied samples yielded the Latest Devonian-Early Carboniferous and Early-Middle Permian ages. In addition, the studied zircons demonstrate a broad scatter of ages, from Middle Paleozoic to Mesozoic, suggesting repeated thermal reworking and metamorphism of granites. It is shown that coeval Late Paleozoic magmatism indicates the similarity of the geological evolution of the northern Barents Sea and the Severnaya Zemlya archipelago.

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“…Based on detrital zircon studies, it has been established that during the latest Neoproterozoic (630-550 Ma) an active continental margin also developed in the Kara Block. However, recent tectonic reconstructions suggest that in the Neoproterozoic, the Kara Block was separated from the Siberian Craton and represented either a part of Arctida or an isolated microcontinent [59,60].…”

Section: Geological Setting Of the Arctic Continental Marginsmentioning

confidence: 99%

Geodynamic Settings of Late Paleozoic–Early Mesozoic Granitoid Magmatism at the Arctic Continental Margins: Insights from New Geochronological and Geochemical Data from the Taimyr Peninsula

Kurapov,

Konopelko,

Biske

et al. 2024

Minerals

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Despite significant progress in Arctic geological studies, a number of principal questions concerning the Paleozoic collisional events remain unanswered. Therefore, the Taimyr Peninsula, representing the only outcropped high Arctic region where magmatic complexes, formed by Hercynian collision between the Siberian Craton and the Kara Block, are well exposed, is crucially important. In this paper we report new geochemical and geochronological data for intrusions in the poorly studied northeastern part of the Taimyr Peninsula. The obtained results in combination with published data show that supra-subduction magmatism at the southern active margin of the Kara Block continued from ca. 345 to 285 Ma (Early Carboniferous to Early Permian), and was followed by a post-collisional magmatic pulse that affected the whole Taimyr across terrane boundaries at ca. 280 Ma in the Early Permian. After cessation of the post-collisional magmatism at ca. 265 Ma, the Taimyr experienced extension, and voluminous magmatic series associated with a Siberian mantle plume were formed between 251 and 228 Ma during the Triassic. The studied post-collisional and plume-related intrusions of the Northeastern Taimyr are generally classified as evolved high-K I-type granites with adakitic affinity. The latter is a regional feature because the majority of the analyzed plume-related granitoids are geochemically similar to high potassium continental adakites. It is suggested that the adakitic geochemical characteristics of the plume-related granitoids resulted from melting of hydrated mafic lower crustal protoliths and were controlled by the source lithology. Comparison of the new results with data available for adjacent areas allows for correlation of terranes on a regional scale and sheds light on the evolution of the Arctic continental margins in general. In the Early–Middle Paleozoic, the Kara Block was part of a continental terrane that formed at the northern edge of Baltica as a result of Neoproterozoic Timanian orogeny. In the Early Carboniferous, the southern margin of Kara turned into an active margin, while its inferred continuation in the eastern Uralian margin of Baltica remained a passive margin until the Early Permian. This discrepancy can be explained by dextral displacement of Kara relative to Baltica that took place in the Early Carboniferous and was later accommodated by the formation of the Taimyr collisional belt in the course of the Early Permian collision between Kara and Siberia. After collision, the Taimyr was incorporated into the northern Eurasian margin as an uplifted block that experienced surface erosion and supplied clastic material in surrounding basins.

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Results of U–Pb (LA–ICPMS) dating of detrital zircons from metaterrigenous rocks of the basement of the North Kara basin

Cited by 14 publications

References 7 publications

Provenance of the Mesozoic Succession of Franz Josef Land (North‐Eastern Barents Sea): Paleogeographic and Tectonic Implications for the High Arctic

Provenance of the Mesozoic Succession of Franz Josef Land (North‐Eastern Barents Sea): Paleogeographic and Tectonic Implications for the High Arctic

New data on the basement of Franz Josef Land, Arctic region

Geodynamic Settings of Late Paleozoic–Early Mesozoic Granitoid Magmatism at the Arctic Continental Margins: Insights from New Geochronological and Geochemical Data from the Taimyr Peninsula

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