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June 3, 2026Petrology

Geothermobarometry of Pyroxenes from Ultramafic Rocks of the Monchegorsk Intrusive Complex: 1. Traditional Approach

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Authors

DED. D. EreminAAA. A. AriskinSSS.N. Sobolev

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Overview

Randomized trial estimates pressure conditions in ultramafic rocks, suggesting insights into geological formations.

Key Points

  • This research aims to evaluate various geobarometers' effectiveness in estimating pressure conditions of ultramafic rocks.
  • Testing seven geobarometers on a test set of experimental data, including 64 subliquidus and 31 subsolidus experiments.
  • Applying models to estimate crystallization conditions of 18 mafic-ultramafic rock samples from the Monchegorsk Intrusive Complex.
  • Validation with a semiempirical Cpx-only geobarometer and calibration using experimental data.
  • Pressure estimates from geobarometers varied between ~1 and 5-6 kbar for different samples.
  • Nimis (1995) and Wang et al. (2021) provided consistent estimates ranging from 0.6 to 2.4 kbar across locations.
  • Mt. Travyanaya peridotites indicated the deepest origin among the studied rocks, influencing geological reconstructions.

Cite This Study

Eremin et al. (2026) studied this question.

synapsesocial.com/papers/6a1fc696dee9eb8c0dce78cfhttps://doi.org/10.1134/s0869591126700050
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