GE-bearing minerals are concentrated at the base of conglomerates of the Cretaceous Baynshiree Formation, making a paleo-placer deposit genetically related to underlying PGE mineralization in the Altan Uul ultramafic ophiolitic rocks. The placers contain up to 100 ppb Pt, 2–5 ppb Pd, 2 ppb Rh, 100 ppb Ir, and 5 ppb Ru, along with elevated Ni ~1500 ppm, Co ~500 ppm, and Cr ~3000 ppm. The placer PGE assemblages contain mainly Os–Ir–Ru alloys which occur as grains or as nuggets within the conglomerates. Other heavy minerals also include platinum arsenides and sulfides.

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

ⓘ Gold

ⓘ Platinum-Group Metals

Rock Types Recorded

Select Rock List Type

Alphabetical List Tree Diagram

ⓘ Conglomerate

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

AsiaContinent

Gobi DesertDesert

Eurasian PlateTectonic Plate

Gurvansayhan volcanic arcVolcanic Arc

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References

[1]Dostal, Jaroslav; Gerel, Ochir; Sukhbaatar, Turbold; Prieto, Ximena; Avalos, Nicolás; Lopez, Bernabé; Santibañez, Javier; Vukasovic, Mónica; Cortés, Nelson; Díaz, Jaime (2026) Platinum Group Element Mineralization in Mongolia: Geological Setting, Occurrences, and Exploration Potential. Minerals, 16 (3). doi:10.3390/min16030317

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Altan Uul Placer, Gurvan tes District, Ömnögovi Province, MongoliaiRegional Level TypesAltan Uul PlacerPlacer Gurvan tes DistrictDistrict Ömnögovi ProvinceProvince MongoliaCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }