Structure of the Siberian platform and its western margin in the Riphean-Early Paleozoic

Хераскова, Т. Н.; Kaplan, S. A.; Galuev, V. I.

doi:10.1134/s0016852109020046

Cited by 25 publications

(6 citation statements)

References 1 publication

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“…Geophysical data (e.g. Mel'nikov et al, 2008;Kheraskova et al, 2009) show that the Riphean series of the southern and central parts of the Kureika Basin are thinner than those present in, for example, the Madra Graben. The amplitude of the pre-Vendian erosion here was less effective than on the west of the platform and is estimated as only several hundreds of meters.…”

Section: Maturation Of Organic Matter and History Of Hydrocarbon Genementioning

confidence: 97%

Riphean basins of the central and western Siberian Platform

Фролов

Ахманов

Kozlova

et al. 2011

Marine and Petroleum Geology

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Section: Maturation Of Organic Matter and History Of Hydrocarbon Genementioning

confidence: 97%

Riphean basins of the central and western Siberian Platform

Фролов

Ахманов

Kozlova

et al. 2011

Marine and Petroleum Geology

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“…The tectonic blocks are separated from one another by large regional faults primarily striking in the northwestern directions and having a near vertical dip. These are the Ishimba, Tatarka, Cis Yenisei, and Ankinov faults [55,75] (Fig. 1).…”

Section: Main Structural Elements and Research Objects In The Yeniseimentioning

confidence: 99%

Grenville tectonic events and evolution of the Yenisei Ridge at the western margin of the Siberian Craton

et al. 2014

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Geological, petrologic, geochemical, and isotopic geochronological evidence for Grenville events at the western margin of the Siberian Craton are considered. These events were related to assembly of the Rodinia supercontinent. Multiple manifestations of riftogenic and within plate magmatism at the final stage of orogenic evolution gave rise to breakdown of Rodinia and the formation of the Paleoasian ocean. The results allowed us to develop a new concept on the Precambrian geological evolution of the Yenisei Ridge and the processes that created its tectonic structure. The chronological sequence of events in the history of the Transangarian Yenisei Ridge is based on geological evidence and isotopic dating of Precambrian complexes variable in geodynamic nature. Four tectonic stages dated at 1.4-1.1, 1.1-0.9, 0.90-0.85, and 0.8-0.6 Ga were controlled by collision and extension recognized from large regional linear crustal structural elements. The evolution of the Transangarian Yenisei Ridge, which lasted for ~650 Ma, corresponds in duration to supercontinental cycles that begin from rifting and breakdown of the predated supercontinent and was com pleted by orogeny and the formation of a new supercontinent. The regional geodynamic history correlates with the synchronous sequence and similar style of tectonothermal events at the periphery of the large Pre cambrian Laurentia and Baltica cratons. This is evidenced by paleocontinental reconstructions, which con firm close spatiotemporal links of Siberia with cratons in the northern Atlantic 1400-600 Ma ago and indi cate incorporation of the Siberian Craton into the ancient Nuna and Rodinia supercontinents.

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“…The Precambrian Isakovka and Predivinsk terranes were accreted to the Siberian craton in the Vendian (Nozhkin et al, 2007b). All of these crustal blocks are separated by a system of subvertical major faults primarily striking northwest (Kheraskova et al, 2009). A distinctive feature of near-fault structures is the development of nearly N-S-trending cataclastic and blastomylonitic zones traceable across the ridge.…”

Section: Geology and Strictiral Framework Of The Yenisei Ridge And Stmentioning

confidence: 98%

P-T-t reconstructions of South Yenisei Ridge metamorphic history (Siberian craton): petrological consequences and application to the supercontinental cycles

Лиханов

Ревердатто

Козлов

et al. 2015

Russian Geology and Geophysics

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Studies of gneisses from the Yenisei regional shear zone (YRSZ) provide the first evidence for Mesoproterozoic tectonic events in the geologic history of the South Yenisei Ridge and allowed the recognition of several stages of deformation and metamorphism spanning from Late Paleoproterozoic to Vendian. The first stage (~1.73 Ga), corresponding to the period of granulite-amphibolite metamorphism at P = 5.9 kbar and T = 635 °C, marks the final amalgamation of the Siberian craton to the Paleo-Mesoproterozoic Nuna supercontinent. During the second stage, corresponding to a hypothesized breakup of Nuna as a result of crustal extension, these rocks underwent Mesoproterozoic dynamic metamorphism (P = 7.4 kbar and T = 660 °C) with three peaks at 1.54, 1.38, and 1.25 Ga and the formation of high-pressure blastomylonite rocks in shear zones. Late-stage deformations during the Mesoproterozoic tectonic activity in the region, related to the Grenville-age collision processes and assembly of Rodinia, took place at 1.17-1.03 Ga. The latest pulse of dynamic metamorphism (615-600 Ma) marks the final stage of the Neoproterozoic evolution of the Yenisei Ridge, which is associated with the accretion of island-arc terranes to the western margin of the Siberian craton. The overall duration of identified tectonothermal processes within the South Yenisei Ridge during the Riphean (~650 Ma) is correlated with the duration of geodynamic cycles in the supercontinent evolution. A similar succession and style of tectonothermal events in the history of both the southern and the northern parts of the Yenisei Ridge suggest that they evolved synchronously within a single structure over a prolonged time span (1385-600 Ma). New data on coeavl events identified on the western margin of the Siberian craton contradict the hypothesis of a mantle activity lull (from 1.75 to 0.7 Ga) on the southwestern margins of the Siberian craton during the Precambrian. The synchronous sequence and similar style of tectonic events on the periphery of the large Precambrian Laurentia, Baltica, and Siberia cratons suggest their spatial proximity over a prolonged time span (1550-600 Ma). The above conclusion is consistent with the results of modern paleomagnetic reconstructions suggesting that these cratons represented the cores of Nuna and Rodinia within the above time interval.

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Structure of the Siberian platform and its western margin in the Riphean-Early Paleozoic

Cited by 25 publications

References 1 publication

Riphean basins of the central and western Siberian Platform

Riphean basins of the central and western Siberian Platform

Grenville tectonic events and evolution of the Yenisei Ridge at the western margin of the Siberian Craton

P-T-t reconstructions of South Yenisei Ridge metamorphic history (Siberian craton): petrological consequences and application to the supercontinental cycles

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