Dzuunmod area (minor deposits)
Selenge, North Khentii Gold Belt (Dzuunmod area), Mongolia
Orogenic goldAu
- Type
- Orogenic gold (veins, disseminations and stockworks)
North Khentii Gold Belt (Khentii basin, Mongol-Okhotsk orogenic belt), Haraa terrane: Haraa Group metasediments (Middle Cambrian to Early Ordovician) cut by the Boroogol granitoid complex (Ordovician) and the Dzuunmod rhyolitic subvolcanic complex; sericitic, siliceous and potassic alteration, pyrite and arsenopyrite with invisible gold, late native gold. Fluid calculated at 275 °C (arsenopyrite geothermometer) at δ18O +6.3 to +9.3 ‰, of metamorphic origin; heterogeneous sulphur source, wall-rock sulphidation according to Kim et al. (2020). Groups the uneconomic deposits and occurrences of Sujigtei (7 km south-west of Gatsuurt, small underground workings), Ereen (3.4 km west), Ulaanbulag (19 km), Khargana (15 km), Balj (4.5 km, mined from 2010 to 2012) and Biluut; each analysis is assigned to its deposit in the mineral description. Coordinates not given.
δ34S in ‰ (per mil) Values of the same system
Standard : V-CDT
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 2.7 ‰ | 1 | quartz-vein pyrite, Sujigtei Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 4.3 ‰ | 1 | quartz-vein arsenopyrite, Ereen Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 1.7 ‰ | 1 | disseminated pyrite, Ulaanbulag Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 9.3 ‰ | 1 | quartz-vein pyrite, Khargana Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 0.3 ‰ | 1 | quartz-vein arsenopyrite, Biluut Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 4.8 ‰ | 1 | disseminated pyrite, Biluut Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… |
δ18O in ‰ (per mil) Values of the same system
Standard : V-SMOW
| Value | Range | n | Mineral or matrix | Source |
|---|---|---|---|---|
| 15.5 ‰ | 1 | vein quartz, Sujigtei Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 16 ‰ | 1 | vein quartz, Ereen Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 17 ‰ | 1 | vein quartz, Ulaanbulag Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 17.4 ‰ | 1 | vein quartz, Biluut Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… | |
| 17.7 ‰ | 1 | quartz of disseminated ore, Balj Single analysis. | Kim et al. (2020), Geology, mineralogy and stable isotope geochemistry of the Dzuunmod ar… |
Deposits of the same type
- Muruntau Uzbekistan
- Kalgoorlie (Golden Mile) Australia
- Victorian Goldfields Australia
- Ashanti (Obuasi) Ghana
- Loulo (district de Gara-Yalea) Mali
- Gounkoto Mali
- Massawa Senegal
- Kirkland Lake (Macassa mine) Canada
Cite this page
IsoFind Atlas (2026). Dzuunmod area (minor deposits), isotope signatures. https://www.isofind.tech/isotopes/en/deposits/district-de-dzuunmod-gites-secondaires/ (accessed 2026-10-14).
@misc{isofind2026dzuunmodareaminordepositsisot,
title = {Dzuunmod area (minor deposits), isotope signatures},
author = {{IsoFind Atlas}},
year = {2026},
url = {https://www.isofind.tech/isotopes/en/deposits/district-de-dzuunmod-gites-secondaires/},
note = {Accessed 2026-10-14}
}Updated : 2026-10-14