Journal of

GEOsciences

  (Formerly Journal of the Czech Geological Society)

< previous | issue |       
 
Received: 1 November 2017
Accepted: 13 June 2017
Online: 19 July 2018
H. Editor: M. Novák
 
  full text (PDF, 3.95 MB)
 
Export to RIS
Export to BibTeX
Export to Mendeley
 

Original paper

Oleg S. Vereshchagin, Andrey K. Khudoley, Victoria B. Ershova, Andrey V. Prokopiev, Gennady V. Schneider

Provenance of Jurassic-Cretaceous siliciclastic rocks from the northern Siberian Craton: an integrated heavy mineral study

Journal of Geosciences, volume 63 (2018), issue 2, 199 - 213

DOI: http://dx.doi.org/10.3190/jgeosci.264



The U-Pb ages of detrital zircons and the chemical compositions of detrital garnets and tourmalines from Jurassic-Cretaceous sedimentary rocks of the northern part of the Priverkhoyansk Foreland Basin, the central part of the Yenisey-Khatanga Depression, and the northern part of the Taimyr-Severnaya Zemlya Fold and Thrust Belt were used for a provenance study. Detrital zircons display two age populations, dominated by Late Paleozoic and Paleoproterozoic-Archean zircons, respectively. The first population was recognized in all samples, whereas the second is restricted to Cretaceous samples, suggesting that erosion of the Siberian Craton basement was the main source of clastic sediments only during the Cretaceous. The chemical compositions of the garnets also indicate several sources of detrital material, which changed with time. There are significant differences in the composition of Jurassic (grossular-almandine) and Cretaceous (mainly pyrope) garnets. The pyrope association is characteristic of the high-grade metamorphic rocks of the Siberian Craton, which correlates well with our zircon data. The chemical composition of tourmaline grains varies widely and does not show significant differences between samples of different ages, therefore could not be used to discriminate between different provenance areas in this study.

Journal of Geosciences, Published by © Czech Geological Society, with support from the Czech Geological Survey.
Webdesign inspired by aTeo. Hosted at the server of the Institute of Petrology and Structural Geology, Charles University, Prague.
ISSN: 1803-1943 (online), 1802-6222 (print)
email: jgeosci(at)jgeosci.org
cover_rotated.gif, 15kB

SNIP (Scopus, 2017): 1.120

IF (ISI, 2017): 1.415

5 YEAR IF (ISI, 2017): 1.738

Policy: Open Access

ISSN: 1802-6222

E-ISSN: 1803-1943