The Aluchinsky massif - a mountainous geological formation, refers to late Permian formations tectonically elevated to the surface within the South Anyui fold zone, delimiting the Novosibirsk-Chukchi structure and the Kolyma massif. It is located just south of the Arctic Circle , near the Baimka River (the left tributary of the Great Anyui River ), 180 km southwest of Bilibino . This horst belongs to the Chukotka Autonomous Okrug .
| Aluchinsky massif | |
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| A country |
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| The subject of the Russian Federation | Chukotka Autonomous Okrug |
- The Baim basin, a gold and platinum deposit, is also located in this area. Three associations were identified within the massif - dunite-harzburgite, pyroxenite-gabbro-verlite and gabbro. Among the studied rocks of the massif, spinel harzburgites are represented.