NORMATIVE-MINERALOGICAL CLASSIFICATION OF ULTRAMAFITES OF THE MEZOZOIC OPHIOLITES OF ARMENIA

Authors

  • Vilen A. Aghamalyan Institute of Geological Sciences of the NAS of RA, Armenia
  • Tigran K. Lorsabyan Institute of Geological Sciences of the NAS of RA, Armenia

DOI:

https://doi.org/10.46991/PYSU:C/2010.44.1.011

Keywords:

Oceanic Mantle Harzburgites, Armenian ophiolites, ultramafites of Armenia, serpentinization, Opx–Ol–Cpx diagram, lherzolites, pyroxenites, wehrlites, gabbro

Abstract

The article deals with CIPW norm calculation of ultramafites of Armenia for revealing their initial mineralogical composition, which is masked by their total serpentinization. According to the IUGS International Terminological Commission classification by modern Opx–Ol–Cpx diagram (1991), the Oceanic Mantle Harzburgites dominates among the ultramafites of Armenia, what is peculiar for the HOT type ophiolites, formed in the fast spreading conditions. It is also cleared up that dunites with podiform cromite mineralization, lherzolites, wehrlites, pyroxenites and a various gabbro belong to the cumulative complex of the Armenian ophiolites.

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Published

2010-03-18

How to Cite

Aghamalyan, V. A., & Lorsabyan, T. K. (2010). NORMATIVE-MINERALOGICAL CLASSIFICATION OF ULTRAMAFITES OF THE MEZOZOIC OPHIOLITES OF ARMENIA. Proceedings of the YSU C: Geological and Geographical Sciences, 44(1 (221), 11–18. https://doi.org/10.46991/PYSU:C/2010.44.1.011

Issue

Vol. 44 No. 1 (221) (2010)

Section

Geology

License

Copyright (c) 2010 Proceedings of the YSU

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.