Geochemistry of ∼1.9 Ga sedimentary rocks from northeastern Labrador, Canada

  • Hayashi K
  • Fujisawa H
  • Holland H
 et al. 
  • 67


    Mendeley users who have this article in their library.
  • 225


    Citations of this article.


Fifty-eight rock chips from fifteen samples of sedimentary rocks from the Ramah Group (∼1.9 Ga) in northeastern Labrador, Canada, were analyzed for major and minor elements, including C and S, to elucidate weathering processes on the Earth's surface about 1.9 Ga ago. The samples come from the Rowsell Harbour, Reddick Bight, and Nullataktok Formations. Two rock series, graywacke-gray shales of the Rowsell Harbour, Reddick Bight and Nullataktok Formations, and black shales of the Nullataktok Formation, are distinguishable on the basis of lithology, mineralogy, and major and trace element chemistry. The black shales show lower concentrations than the graywackes-gray shales in TiO2(0.3-0.7 wt% vs. 0.7-1.8 wt%), Al2O3(9.5-20.1 wt% vs. 13.0-25.0 wt%), and ΣFe (

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


  • Ken Ichiro Hayashi

  • Hiroyuki Fujisawa

  • Heinrich D. Holland

  • Hiroshi Ohmoto

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free