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May 8, 2026Economic Geology

Ore Mineralogy, Sulfide Geochemistry, and S Isotopes of Magmatic-Hydrothermal Au Mineralization Associated with the Mooshla Intrusive Complex, Doyon-Bousquet-LaRonde Mining Camp, Abitibi Greenstone Belt, Quebec

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Authors

KNKevin NeyedleyPMP Mercier-LangevinRSRichard Stern

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Overview

Randomized trial investigates genetic links of Au mineralization in the Doyon-Bousquet-LaRonde mining camp, implying insights into Au-rich deposits.

Key Points

  • The aim is to explore genetic connections between Au-rich deposits and the Mooshla Intrusive Complex.
  • Characterization of mineralized samples from Doyon and Grand Duc deposits using petrography.
  • Analysis of trace elements and sulfur isotopes in sulfide phases.
  • Comparison of pyrite trace element and sulfur isotope characteristics.
  • High-grade veins at Grand Duc showed different trace element patterns and lower δ34S compared to Doyon.
  • The main Au precipitation mechanism was influenced by wall-rock sulfidation and fluid boiling.
  • Sulfide compositions indicate a singular magmatic source of sulfur, ruling out non-magmatic origins.

Cite This Study

Neyedley et al. (2026) studied this question.

synapsesocial.com/papers/69fd7f0dbfa21ec5bbf077abhttps://doi.org/10.5382/econgeo.5227
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