Study of Geochemical characteristics in Facieses of Pediment unit (Case Study: Yazd – Ardekan plain)

Document Type : Research

Authors

1 Academic faculty member, Department of Natural Resources Engineering, College of Agriculture and Natural Resources, Hormozgan University, Bandar Abbas, Iran

2 Faculty member, Faculty of Natural Resources, University of Tehran

3 Iran Atomic Energy Organization

4 Faculty member of Natural Resources Engineering Department, College of Agriculture and Natural Resources, Hormozgan University, Bandar Abbas, Iran

10.22092/wmej.2016.112500

Abstract

Rare earth elements (REE) are used for sedimentary provenance studies due to their immobility during weathering, transport, and sedimentation. In this research, in order to comparison REE and REE indices between different facieses, we collected 73 surface samples from there. For data analysis, we used Duncan and ANOVA method. Result showed that, there are significant difference in 99% level for La, Ce, Pr, Eu, Ho, Er, Yb and indices such as ∑REE, Eu/Euï, (Gd/Yb)n, (La/Yb)n between different facieses and there are significant difference in 95% level for Nd element and Nd/Yb index. Also, there aren’t significant differences for Sm, Gd, Tb, Tm, Lu, Dy and (La/Sm)n index between different facieses. Maximum and minimum correlation observed between Eu/Eu*:(La/Yb)n and (Gd/Yb)n:(La/Sm)n indices, respectively and also, Maximum and minimum correlation observed between Fe2O3+Mg /Al2O3:Nd and CaO:Nd, respectively. CIA in all samples was less than 55, which indicat there aren’t any weathering in case study.

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History

  • Receive Date: 23 December 2012
  • Revise Date: 18 April 2013
  • Accept Date: 21 May 2013

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