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The study aims to investigate the mineralization age, ore-fluid evolution, and sources of ore-forming materials in the Dadonggou molybdenum deposit.

June 18, 2026MineralsOpen Access

Metallogenic Potential and Ore-Forming Fluid Evolution of the Dadonggou Molybdenum Deposit in Northwest Hebei, China: Geochemical and Isotopic Constraints

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The study aims to investigate the mineralization age, ore-fluid evolution, and sources of ore-forming materials in the Dadonggou molybdenum deposit.
Integrated lithogeochemistry, zircon U-Pb chronology, and molybdenite Re-Os geochronology were employed.
Fluid-inclusion microthermometry and H-O-S isotope analyses were conducted to understand ore-fluid evolution.
Age determination of zircon and molybdenite provided insights into mineralization timing.
Molybdenite Re-Os isochron age determined at 135.9 ± 4.0 Ma; weighted mean model age at 134.2 ± 1.6 Ma.
Ore fluids evolved from an early CO2-H2O-NaCl system to a later H2O-NaCl system indicating changing conditions.
Evidence of mantle magma with seawater influence was found in sulfur isotopes and Re contents in molybdenite.

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Randomized trial explores ore-fluid evolution in a molybdenum deposit, highlighting resource significance.

Tao et al. (2026) studied this question.

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