First results of U–Pb dating of detrital zircons from the Upper Ordovician sandstones of the Bashkir uplift (Southern Urals)

The first results of U–Pb dating of detrital zircons from Upper Ordovician sandstones of the Bashkir uplift in the Southern Urals and U–Pb isotopic ages available for detrital zircons from six stratigraphic levels of the Riphean–Paleozoic section of this region are discussed. It is established that the long (approximately 1.5 Ga) depositional history of sedimentary sequences of the Bashkir uplift includes a peculiar period lasting from the Late Vendian to the Emsian Age of the Early Devonian (0.55–0.41 Ga). This period is characterized by the following features: (1) prevalence of material from eroded Mesoproterozoic and Early Neoproterozoic crystalline complexes among clastics with ages atypical of the Volga–Urals segment of the East European Platform basement; (2) similarity of age spectra obtained for detrital zircons from different rocks of the period: Upper Vendian–Lower Cambrian lithic sandstones and Middle Ordovician substantially quartzose sandstones. © 2016, Pleiades Publishing, Ltd.

Kuznetsov N.B. 1, 2, 3 , Belousova E.A.4 , Degtyarev K.E.1 , Pyzhova E.S. 1, 5 , Maslov A.V.6 , Gorozhanin V.M.7 , Gorozhanina E.N.7 , Romanyuk T.V.2, 3
Number of issue
  • 1 Geological Institute, Russian Academy of Sciences, Pyzhevskii per. 7, Moscow, 119017, Russian Federation
  • 2 Schmidt Joint Institute of Physics of the Earth, Russian Academy of Sciences, ul. Bolshaya Gruzinskaya 10, Moscow, 123343, Russian Federation
  • 3 Gubkin Russian State University of Oil and Gas, Leninskii pr. 65, Moscow, 118881, Russian Federation
  • 4 GEMOC, Department of Earth and Planetary Sciences, Macquarie University, North Ryde NSW, Sidney, 2109, Australia
  • 5 Peoples Friendship University of Russia, ul. Miklukho-Maklaya 6, Moscow, 117198, Russian Federation
  • 6 Zavaritskii Institute of Geology and Geochemistry, Ural Branch, Russian Academy of Sciences, Pochtovyi per. 7, Yekaterinburg, 620075, Russian Federation
  • 7 Institute of Geology, Ufa Scientific Center, Russian Academy of Sciences, ul. Karla Marksa 16/2, Ufa, 450077, Russian Federation
Crystalline rocks; Gallium; Geochronology; Stratigraphy; Crystalline complexes; Detrital zircon; European Platform; Isotopic age; Lower cambrians; Neoproterozoic; Sedimentary sequence; Southern Urals; Sandstone; detrital deposit; geochronology; Ordovician; sandstone; uplift; uranium-lead dating; zircon
Date of creation
Date of change
Short link

Other records