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Experimental Study of Amphibolization of the Basic Rocks of the Tiksheozersky Massif

Northern Karelia, Russia
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Abstract

The work is devoted to experimental study of postmagmatic transformation of basic rocks (gabbroids) of the Tiksheozersky massif (North Karelia Russia). During the petrological study of gabbroids the formation of edges of alkaline amphiboles around the clinopyroxene grains (diopside-hedenbergite series), and then—low-temperature minerals containing Na, K, Cl. In order to recreate the conditions for the formation of amphibole rims a number of experiments were carried out at a temperature of 850 °C and a pressure of 3 kbar with solutions of KCl and KF concentrations of 0.5 M, 1 M and 2 M, respectively. In the course of experiments, amphiboles corresponding to natural amphiboles from rims around clinopyroxenes, Tiksheozersky massif were obtained and also phlogopites present in the basic rocks of the Tiksheozersky massif were obtained.

Keywords

Alkaline magmatism Gabbro Carbonatite Amphibole Amphibolization Postmagmatic processes Experiment 

Notes

Acknowledgements

This research was supported from the project No AAAA-A18-118020590151-3 of the IEM RAS.

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Copyright information

© The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerland AG 2020

Authors and Affiliations

  1. 1.D.S. Korzhinskii Institute of Experimental Mineralogy, Russian Academy of SciencesChernogolovka, Moscow DistrictRussia

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